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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>As
filed with the Securities and Exchange Commission on July 8, 2022</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Registration
No. 333-____________</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>UNITED
STATES</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>SECURITIES
AND EXCHANGE COMMISSION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 12pt"><B>Washington,
D.C. 20549</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>FORM
S-1</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>REGISTRATION
STATEMENT UNDER</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>THE
SECURITIES ACT OF 1933</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>SINTX
Technologies, Inc.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Exact
name of registrant as specified in its charter)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 32%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Delaware</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 32%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3841</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 32%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>84-1375299</B></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(State
    or other jurisdiction of<BR>
    incorporation or organization)</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Primary
    Standard Industrial<BR>
    Classification Code Number)</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(I.R.S.
    Employer<BR>
    Identification Number)</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1885
West 2100 South</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Salt
Lake City, UT, 84119</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(801)
839-3500</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Address,
including zip code, and telephone number,<BR>
including area code, of registrant&rsquo;s principal executive offices)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>B.
Sonny Bal, MD</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>President
and Chief Executive Officer</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SINTX
Technologies, Inc.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1885
West 2100 South</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Salt
Lake City, UT, 84119</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(801)
839-3500</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Name,
address, including zip code, and telephone number,<BR>
including area code, of agent for service)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Copies
to:</I></B></FONT></P>

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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 49%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>David
    F. Marx<BR>
    Daniel P. Lyman<BR>
    Dorsey &amp; Whitney LLP<BR>
    111 South Main Street, Suite 2100<BR>
    Salt Lake City, Utah 84111</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 49%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Barry
    L. Grossman<BR>
    Sarah E. Williams<BR>
    Ellenoff Grossman &amp; Schole LLP<BR>
    1345 Avenue of the Americas, 11th Floor<BR>
    New York, NY 10105</B></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Approximate
date of commencement of proposed sale to the public</B>: As soon as practicable after this registration statement becomes effective.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the
Securities Act of 1933, check the following box. &#9746;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">If
this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following
box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.
&#9744;

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">If
this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the
Securities Act registration statement number of the earlier effective registration statement for the same offering. &#9744;

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the
Securities Act registration statement number of the earlier effective registration statement for the same offering. <B>&#9744;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Indicate
by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting
company, or an emerging growth company. See the definitions of &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer,&rdquo;
&ldquo;smaller reporting company&rdquo; and &ldquo;emerging growth company&rdquo; in Rule 12b-2 of the Exchange Act:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 35.45pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 7%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 25%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Large
    accelerated filer</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 25%">&#9744;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 25%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Accelerated
    filer</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 18%">&#9744;</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Non-accelerated
    filer</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&#9746;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Smaller
    reporting company</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&#9746;</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Emerging
    growth company</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&#9744;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 35.45pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying
with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. &#9744;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>The
Registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the
registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective
in accordance with Section 8(a) of the Act or until the registration statement shall become effective on such date as the Commission,
acting pursuant to said Section 8(a), may determine.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: Red"><B>The
information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement
filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and is not soliciting
an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: Red"><B><I>PRELIMINARY
PROSPECTUS, SUBJECT TO COMPLETION, DATED JULY 8, 2022</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>SINTX
TECHNOLOGIES, INC.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Subscription
Rights to Purchase Up to 10,000 Units</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Consisting
of an Aggregate of Up to Shares of Series D Convertible Preferred Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>and
Warrants to Purchase Up to Shares of Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>at
a Subscription Price of $1,000 Per Unit and</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Up
to Shares of Common Stock Issuable upon the Conversion of</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Series
D Convertible Preferred Stock Included in the Units and</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Up
to Shares of Common Stock Issuable upon the Exercise of</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Warrants
Included in the Units</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus relates to our distribution to holders of our common stock, Series B Preferred Stock, Series C Preferred Stock and
certain outstanding warrants, which we refer to as the Participating Warrants, at no charge, non-transferable subscription rights to
purchase units. Each unit, which we refer to as a Unit, consists of one share of Series D Convertible Preferred Stock, which we
refer to as the Preferred Stock, and &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; warrants to purchase common stock,
which we refer to as the Warrants. Each share of Preferred Stock is convertible, at the option of the holder at any time, into a
number of shares of our common stock equal to the quotient of the stated value of the Preferred Stock ($1,000) divided by the
Conversion Price (initially, $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share). Each Warrant will be exercisable for one share of our common stock at an exercise price
of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share from the date of issuance through its expiration five years from the date of issuance. We refer to the offering that
is the subject of this prospectus as the Rights Offering. In the Rights Offering, you will receive one subscription right for every
share of common stock (including each share of common stock issuable upon conversion of Series B Preferred Stock, Series C Preferred
Stock, and exercise of Participating Warrants) owned at 5:00 p.m., Eastern Time, on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022, the record date of the Rights Offering,
or the Record Date. The Preferred Stock and the Warrants comprising the Units will separate upon the expiration of the Rights
Offering and will be issued separately but may only be purchased as a Unit, and the Units will not trade as a separate security. The
subscription rights will not be tradable. Holders as of the Record Date of Series B Preferred Stock, Series C Preferred Stock, and
Participating Warrants, will also receive subscription rights pursuant to the terms of those Series B Preferred Stock, Series C
Preferred Stock, and Participating Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
subscription right will entitle you to purchase one Unit, which we refer to as the Basic Subscription Right, at a subscription price
per Unit of $1,000, which we refer to as the Subscription Price. If you exercise your Basic Subscription Rights in full, and any portion
of the Units remain available under the Rights Offering, you will be entitled to an over-subscription privilege to purchase a portion
of the unsubscribed Units at the Subscription Price, subject to proration and ownership limitations, which we refer to as the Over-Subscription
Privilege. Each subscription right consists of a Basic Subscription Right and an Over-Subscription Privilege, which we refer to as the
Subscription Right.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Subscription Rights will expire if they are not exercised by 5:00 p.m., Eastern Time, on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022, unless the Rights Offering is extended
or earlier terminated by us. If we elect to extend the Rights Offering, we will issue a press release announcing the extension no later
than 9:00 a.m., Eastern Time, on the next business day after the most recently announced expiration date of the Rights Offering. We may
extend the Rights Offering for additional periods in our sole discretion for any reason up to an additional 45 days. Once made, all exercises
of Subscription Rights are irrevocable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have not entered into any standby purchase agreement or other similar arrangement in connection with the Rights Offering. The Rights
Offering is being conducted on a best-efforts basis and there is no minimum amount of proceeds necessary to be received in order for
us to close the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have engaged Maxim Group LLC to act as dealer-manager in the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Investing
in our securities involves a high degree of risk. See &ldquo;Risk Factors&rdquo; beginning on page 13 of this prospectus. You should
carefully consider these risk factors, as well as the information contained in this prospectus, before you invest.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
stock transfer agent, American Stock Transfer &amp; Trust Company, LLC, will serve as the Subscription Agent and D.F. King &amp; Co.,
Inc., will serve as Information Agent for the Rights Offering. The Subscription Agent will hold the funds we receive from subscribers
until we complete, abandon or terminate the Rights Offering. If you want to participate in this Rights Offering and you are the record
holder of your shares, we recommend that you submit your subscription documents to the Subscription Agent well before the deadline. If
you want to participate in this Rights Offering and you hold shares of our common stock, Series B Preferred Stock, Series C Preferred
Stock, or Participating Warrants through your broker, dealer, bank or other nominee, you should promptly contact your broker, dealer,
bank or other nominee and submit your subscription documents in accordance with the instructions and within the time period provided
by your broker, dealer, bank or other nominee. For a detailed discussion, see &ldquo;The Rights Offering - The Subscription Rights.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
board of directors reserves the right to terminate the Rights Offering for any reason any time before the expiration of the Rights Offering.
If we terminate the Rights Offering, all subscription payments received will be returned within 10 business days, without interest or
deduction. We expect the Rights Offering to expire on or about &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022, subject to our right to extend the Rights Offering as described
above, and that we would close on subscriptions within five business days of such date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
common stock is listed on the Nasdaq Capital Market, or Nasdaq, under the symbol &ldquo;SINT.&rdquo; On July 7, 2022, the last
reported sale price of our common stock was $0.44 per share. There is no public trading market for the Preferred Stock or the
Warrants and they will not be listed for trading on Nasdaq or any other securities exchange or market. The Subscription Rights are non-transferrable
and will not be listed for trading on Nasdaq or any other securities exchange or market. You are urged to obtain a current price quote
for our common stock before exercising your Subscription Rights.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 80%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD><TD STYLE="font: bold 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: bold 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Per
    Unit</FONT></TD><TD STYLE="font: bold 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD><TD STYLE="font: bold 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: bold 10pt Times New Roman, Times, Serif; border-bottom: Black 1.5pt solid; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Total(2)</FONT></TD><TD STYLE="font: bold 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 60%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subscription
    price</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 16%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,000</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 16%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10,000,000</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dealer-Manager
    fees and expenses (1)</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">$</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">
                                            </FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Proceeds
    to us, before expenses</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">
                                            </FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">$<FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">
                                            </FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  </TABLE>

<P STYLE="text-align: center; font: 11pt Calibri, Helvetica, Sans-Serif; margin-top: 0; margin-bottom: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
    connection with this Rights Offering, we have agreed to pay to Maxim Group LLC as the dealer-manager an aggregate cash fee equal
    to 7.0% of the gross proceeds received by us directly from exercises of the Subscription Rights. We agreed to reimburse expenses
    of Maxim Group LLC in the Rights Offering, up to $100,000. We have also agreed to issue Maxim Group LLC a warrant covering a number
    of shares of our common stock equal to 4.0% of the total number of shares of common stock issuable upon the conversion of the Preferred
    Stock issued in the Rights Offering. See &ldquo;Plan of Distribution.&rdquo;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Assumes
    the Rights Offering is fully subscribed but excludes proceeds from the exercise of Warrants included within the Units.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Our
board of directors is making no recommendation regarding your exercise of the Subscription Rights. You should carefully consider whether
to exercise your Subscription Rights before the expiration date. You may not revoke or revise any exercises of Subscription Rights once
made.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Neither
the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed
upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Dealer-Manager</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Maxim
Group LLC</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
date of this Prospectus is &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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OF CONTENTS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_001">About This Prospectus</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; width: 48px; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_002">Prospectus Summary</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_003">Incorporation of Certain Information by Reference</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_004">Where You Can Find More Information</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">9</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_005">Questions and Answers Relating to the Rights Offering</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_006">Risk Factors</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">18</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_007">Forward-Looking Statements</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_008">Use of Proceeds</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">24</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_009">Dilution</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">25</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_010">Market Price of our Common Stock and Related Stockholder Matters</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">26</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_011">The Rights Offering</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">27</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_012">Material U.S. Federal Income Tax Consequences</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">35</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_013">Description of Securities</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">45</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_014">Plan of Distribution</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">60</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_015">Experts</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">61</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_016">Legal Matters</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">61</FONT></TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_001"></A>ABOUT
THIS PROSPECTUS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
registration statement of which this prospectus forms a part that we have filed with the Securities and Exchange Commission, or SEC,
includes exhibits that provide more detail of the matters discussed in this prospectus. You should read this prospectus and the related
exhibits filed with the SEC, together with the additional information described under the headings &ldquo;Where You Can Find More Information&rdquo;
and &ldquo;Incorporation by Reference&rdquo; before making your investment decision.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
should rely only on the information provided in this prospectus or in a prospectus supplement or any free writing prospectuses or amendments
thereto. Neither we nor the deal-manager have authorized anyone else to provide you with different information. We do not, and the dealer-manager
and its affiliates do not, take any responsibility for, and can provide no assurance as to the reliability of, any information that others
may provide to you. If anyone provides you with different or inconsistent information, you should not rely on it. You should assume that
the information in this prospectus is accurate only as of the date hereof, regardless of the time of delivery of this prospectus or any
sale of securities. Our business, financial condition, results of operations and prospects may have changed since that date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are not, and the dealer-manager is not, offering to sell or seeking offers to purchase these securities in any jurisdiction where the
offer or sale is not permitted. We and the dealer-manager have not done anything that would permit this offering or possession or distribution
of this prospectus in any jurisdiction where action for that purpose is required, other than in the United States. Persons outside the
United States who come into possession of this prospectus must inform themselves about, and observe any restrictions relating to, the
offering of the securities as to distribution of the prospectus outside of the United States.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
the context otherwise requires, references in this prospectus to &ldquo;SINTX,&rdquo; &ldquo;the Company,&rdquo; &ldquo;we,&rdquo; &ldquo;us&rdquo;
and &ldquo;our&rdquo; refer to SINTX Technologies, Inc. and our subsidiaries. Solely for convenience, trademarks and tradenames referred
to in this prospectus may appear without the &reg; or &trade; symbols, but such references are not intended to indicate in any way that
we will not assert, to the fullest extent under applicable law, our rights, or that the applicable owner will not assert its rights,
to these trademarks and tradenames.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<DIV STYLE="padding: 0.1in; border: Black 1.5pt solid">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_002"></A>PROSPECTUS
SUMMARY</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>This
summary contains basic information about us and this offering. Because it is a summary, it does not contain all of the information that
you should consider before investing. Before you decide to invest in our Units, you should read this entire prospectus carefully, including
the section entitled &ldquo;Risk Factors&rdquo; and any information incorporated by reference herein.</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Company
Overview</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SINTX
Technologies is a 25-year-old advanced ceramics company formed in December 1996, focused on providing solutions in a variety of biomedical,
industrial, and antipathogenic applications. We have grown from focusing primarily on the research, development and commercialization
of medical devices manufactured with silicon nitride to becoming an advanced ceramics company engaged in diverse fields, including biomedical,
industrial and antipathogenic applications. This diversification enables us to focus on our core competencies which are the manufacturing,
research, and development of products comprised from advanced ceramic materials for external partners. We seek to connect with new customers,
partners and manufacturers to help them realize the goal of leveraging our expertise in advanced ceramics to create new, innovative products
across these sectors.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SINTX
Core Business</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Biomedical
Applications:</B> Since its inception, SINTX has been focused on medical grade silicon nitride. SINTX biomedical products have been shown
to be biocompatible, bioactive, antipathogenic, and to have superb bone affinity. Spinal implants made from SINTX silicon nitride have
been successfully implanted in humans since 2008 in the US, Europe, Brazil, and Taiwan. This established use, along with its inherent
resistance to bacterial adhesion and bone affinity suggests that it may also be suitable in other fusion device applications such as
hip implants foot wedges and dental implants. Bacterial infection of any biomaterial implants is always a concern. SINTX silicon nitride
has been shown to be resistant to bacterial colonization and biofilm formation, making it antibacterial. SINTX silicon nitride products
can be polished to a smooth and wear-resistant surface for articulating applications, such as bearings for hip and knee replacements.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
believe that silicon nitride has a superb combination of properties that make it suited for long-term human implantation. Other biomaterials
are based on bone grafts, metal alloys, and polymers- all of which have well-known practical limitations and disadvantages. In contrast,
silicon nitride has a legacy of success in the most demanding and extreme industrial environments. As a human implant material, silicon
nitride offers bone ingrowth, resistance to bacterial and viral infection, ease of diagnostic imaging, resistance to corrosion, and superior
strength and fracture resistance, all of which claims are validated in our large and growing inventory of peer-reviewed, published literature
reports. We believe that our versatile silicon nitride manufacturing expertise positions us favorably to introduce new and innovative
devices in the medical and non-medical fields.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Industrial
Applications:</B> <FONT STYLE="background-color: white">It is our belief that our silicon nitride has the best combination of mechanical,
thermal, and electrical properties of any technical ceramic material. It is a high-performance technical ceramic with high strength,
toughness, and hardness, and is extremely resistant to thermal shock and impact. It is also an electrically insulating ceramic material.
Typically, it is used in applications where high load-bearing capacity, thermal stability, and wear resistance are required. We have
obtained AS9100D certification and ITAR registration to facilitate entry into the aerospace and protective armor market.</FONT></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
recently entered the ceramic armor market through the purchase of assets from B4C, LLC and a technology partnership with Precision Ceramics
USA. We will develop and manufacture high-performance ceramics for personnel, aircraft, and vehicle armor including a 100% Boron Carbide
material for ultimate lightweight performance in ballistic applications, and a composite material made of Boron Carbide and Silicon Carbide
for exceptional multi-hit performance against ballistic threats. We have signed a 10-year lease at a building near our headquarters in
Salt Lake City, Utah to house development and manufacturing activities for SINTX Armor, and which we expect to be operational by August
2022.</FONT></P>

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</DIV>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Antipathogenic
Applications:</B> There is a global need to improve protection against pathogens in everyday life. SINTX believes that by incorporating
its unique composition of silicon nitride antipathogenic powder into products such as face masks, filters, and wound care devices, it
is possible to manufacture surfaces that inactivate pathogens, thereby limiting the spread of infection and disease. The discovery in
2020 that SINTX silicon nitride inactivates S ARS-CoV-2, the virus which causes the disease COVID-19, has opened new markets and applications
for our material and we have refocused many of our resources on these opportunities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SINTX
presently manufactures advanced ceramic powders and components in its manufacturing facilities based in Salt Lake City, Utah.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Our
Strategy</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
goal is to become a leading advanced ceramics company. Key elements of our strategy to achieve this goal are the following:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Develop
    new products with anti-pathogenic properties, including inactivation of the SARS-CoV-2 virus, utilizing our silicon nitride technology.
    </I>We have conducted multiple tests over the last nine years which have identified and verified the antipathogenic properties of
    our silicon nitride powders, fully dense components, and silicon nitride-containing composites. Our research has explored the fundamental
    mechanisms responsible for these antipathogenic properties with the objective of developing commercial products and revenue from
    them. We have several partnerships exploring opportunities in face masks, filters, wound care, and coatings. </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Develop
    additional commercial opportunities outside of the medical device market.</I> We have pursued the development of non-medical uses
    for our silicon nitride since selling the retail spine business in 2018. In 2019, we became ITAR-registered and obtained AS9100D
    certification of our quality management system. We have hired experienced business development employees to identify new markets
    and applications for our materials and develop commercial relationships. We made the first shipments of non-medical products in our
    history in 2020. These were primarily prototype orders, and we expect some of these to transition into regular production orders.
    The launch of SINTX Armor will generate revenue from new products. The potential use of our silicon nitride in antipathogenic applications
    has also opened up the potential to enter many new markets.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Develop
    new silicon nitride manufacturing technologies.</I> Our current manufacturing process has allowed us to successfully produce spinal
    implants for over 10 years. We have made advancements in our processes &ndash; including the purchase of new manufacturing equipment
    &ndash; which we have leveraged to develop new porous and textured implants. In 2021, SINTX purchased new equipment for its research
    and development team to develop new composite products of silicon nitride with rigid polymers and fabrics.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Apply
    our silicon nitride technology platform to new medical opportunities. </I>We believe our biomaterial expertise, flexible manufacturing
    process, and strong intellectual property will allow us to transition currently available medical device products made of inferior
    biomaterials and manufacture them using silicon nitride and our technology platform to improve their characteristics. We are seeking
    partnerships to utilize our capabilities and manufacture products for medical OEM and private label partnerships. We see specific
    opportunities in markets such as foot and ankle, dental, maxillofacial, and arthroplasty.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Intellectual
Property</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
rely on a combination of patents, trademarks, trade secrets, nondisclosure agreements, proprietary information ownership agreements and
other intellectual property measures to protect our intellectual property rights. We believe that to have a competitive advantage, we
must continue to develop and maintain the proprietary aspects of our technologies.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have fourteen issued U.S. patents, one foreign patent, eighteen pending U.S. non-provisional patent applications, one pending U.S. provisional
patent application, thirty-three pending foreign applications and eleven pending PCT patent applications. Our first issued patent expired
in 2016, with the last of these patents expiring in 2039.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have seven U.S. patents directed to articulating implants using our high-strength, high toughness doped silicon nitride solid ceramic.
The issued patents, which include US 6,881,229; US 7,666,229; US 7,780,738; US 8,123,812; US 8,133,284; US 9,051,639; and US 9,517,136
begin to expire in June 2022.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

</DIV>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<DIV STYLE="padding: 0.1in; border: Black 1.5pt solid">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
also have two U.S. patents related to our CSC technology that are directed to implants that have both a dense load-bearing, or cortical,
component and a porous, or cancellous, component, together with a surface coating. These issued patents, US 8,133,284 and US 9,649,197
will expire in June 2022 and 2035, respectively.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
addition, U.S. Patent No. 10,806,831 directed to antibacterial implants and U.S. Patent No. 11,191,787 directed to antipathogenic devices
were recently issued which will expire in 2037 and 2039, respectively.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">With
respect to PCT patent application serial no. PCT/US2018/014781 directed to antibacterial biomedical implants, we entered the national
stage in Europe, Australia, Brazil, Canada, China, Japan, Hong Kong, and South Korea as well as two divisional patent applications filed
in Australia and Japan to seek potential patent protection for our proprietary technologies in those countries<B>.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">With
respect to PCT patent application serial no. PCT/US2019/026789 directed to methods for improving the wear performance of ceramic-polyethylene
or ceramic-ceramic articulation couples utilized in orthopaedic joint prostheses, we entered the national stage in Australia, Brazil,
Canada, Europe, Japan, Korea, and Mexico to seek proprietary technologies in those countries.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">With
respect to PCT application serial no. PCT/US2019/048072 directed to antipathogenic devices and methods, we entered the national stage
in Europe, Japan, Mexico, Australia, Brazil, Canada, South Korea, China and India to seek proprietary technologies in those countries.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">With
respect to PCT application serial no. PCT/US2020/037170 directed to methods of surface functionalization of zirconia-toughened alumina
with silicon nitride, we entered the national stage in Europe, Australia, Brazil, Canada, China, India, Japan, Mexico, and the United
States to seek proprietary technologies in those countries.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">With
respect to PCT application serial no. PCT/US2021/014725 directed to antifungal composites and methods thereof, we plan on entering the
national stage before the statutory deadline on July 24, 2022 in Europe, Brazil, Australia, Canada, China, India, Mexico, and South Korea
to seek proprietary technologies in those countries.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
relation to the sale of our spine implant business to CTL Medical under the Asset Purchase Agreement dated September 5, 2018 we assigned
our entire right to forty-eight (48) U.S. patents, two (2) foreign patents and three (3) pending patent applications from our patent
portfolio to CTL Medical under that transaction. In addition, three (3) U.S. patents (U.S. patent nos. 9,399,309; 9,517,136; and 9,649,197)
directed to silicon nitride manufacturing processes were licensed to CTL Medical under an irrevocable, fully paid-up, worldwide license
for a ten-year term with CTL Medical also having a Right of First Negotiation to acquire these patents if SINTX decides to later sell
these IP assets to a third party.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
remaining issued patents and pending applications are directed to additional aspects of our products and technologies including, among
other things:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">designs
    for intervertebral fusion devices;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">designs
    for hip implants;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">designs
    for knee implants;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">implants
    with improved antibacterial characteristics;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">implants
    with improved wear performance and surface functionalization</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">antipathogenic,
    antibacterial, antimicrobial, antifungal, and antiviral compositions, devices, and methods; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">methods
    and systems for laser cladding, laser coating, and laser sintering of silicon nitride.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
also expect to rely on trade secrets, know-how, continuing technological innovation and in-licensing opportunities to develop and maintain
our intellectual property position. However, trade secrets are difficult to protect. We seek to protect the trade secrets in our proprietary
technology and processes, in part, by entering into confidentiality agreements with commercial partners, collaborators, employees, consultants,
scientific advisors and other contractors and into invention assignment agreements with our employees and some of our commercial partners
and consultants. These agreements are designed to protect our proprietary information and, in the case of the invention assignment agreements,
to grant us ownership of the technologies that are developed.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>Recent Developments</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">On June 30, 2022, we completed our
acquisition of Technology Assessment and Transfer, Inc. (&ldquo;TA&amp;T&rdquo;), an advanced ceramics business specializing in
developing and commercializing materials for aerospace, defense, biomedical, and industrial applications. TA&amp;T&rsquo;s
technologies and products include 3D printing of ceramic medical devices and heat exchangers, chemical vapor infiltration and
deposition of complex fiber-reinforced ceramic-matrix composites, and hot pressing of transparent armor and other technical
ceramics. TA&amp;T uses government research grants to support advanced technology research and development innovations and
commercialize via limited production, technology licensing and cooperative partnerships. We believe this acquisition significantly
increases our capabilities in the aerospace, defense, and biomedical markets.</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Corporate
Information</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
headquarters is located at 1885 West 2100 South, Salt Lake City, Utah 84119, and our telephone number is (801) 839-3500. We maintain
a website at https://www.sintx.com. Information on the website is not incorporated by reference and is not a part of this prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

</DIV>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<DIV STYLE="padding: 0.1in; border: Black 1.5pt solid">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Summary
of the Rights Offering</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 25%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Securities
    to be Offered</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 73%; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
    are distributing to you, at no charge, one non-transferable Subscription Right to purchase one Unit for every share of our common
    stock (or share of common stock issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of the
    Participating Warrants) that you owned on the Record Date. Each Unit consists of one share of our Preferred Stock and &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Warrants. The
    Units will separate upon the closing of the Rights Offering and the Preferred Stock and Warrants will be issued separately, however,
    they may only be purchased as a Unit, and the Unit will not trade as a separate security.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Size
    of Offering</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10,000
    Units.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Subscription
    Price</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$1,000
    per Unit.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Series
    D Convertible Preferred Stock</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
    share of Preferred Stock will be convertible, at the option of the holder at any time, into the number of shares of our common stock
    determined by dividing the $1,000 stated value per share of the Preferred Stock by a conversion price of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share, subject to
    adjustment. The Preferred Stock has certain conversion rights and dividend rights.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Warrants</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
    Warrant entitles the holder to purchase one share of our common stock at an exercise price of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share, subject to adjustment,
    from the date of issuance through its expiration five years from the date of issuance. The Warrants will be exercisable for cash,
    or, solely during any period when a registration statement for the exercise of the Warrants is not in effect, on a cashless basis,
    at any time and from time to time after the date of issuance. </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Record
    Date</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5:00
    p.m., Eastern Time, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Basic
    Subscription Rights</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Your
    Basic Subscription Right will entitle you to purchase one Unit at the Subscription Price. You may exercise your Basic Subscription
    Right for some or all of your Subscription Rights, or you may choose not to exercise your Subscription Rights. If you choose to exercise
    your Subscription Rights, there is no minimum number of Units you must purchase. We are distributing Basic Subscription Rights to
    purchase an aggregate of 25,890,870 Units, but are only selling 10,000 Units in the Rights Offering. In the event that
    the Rights Offering is over-subscribed, rights holders will be entitled to their pro rata portion of the Units.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Over-Subscription
    Privilege</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
    you exercise your Basic Subscription Rights in full, you may also choose to exercise an over-subscription privilege to purchase a
    portion of any Units that are not purchased by our other common, Series B Preferred, and Series C Preferred stockholders or Participating
    Warrant holders through the exercise of their Basic Subscription Rights, subject to proration and stock ownership limitations described
    elsewhere in this prospectus. The subscription agent will return any excess payments by mail without interest or deduction promptly
    after expiration of the subscription period.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Expiration
    Date</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    Subscription Rights will expire at 5:00 p.m., Eastern Time, on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Procedure
    for Exercising Subscription Rights </B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
                                            exercise your Subscription Rights, you must take the following steps:</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
    you are a record holder, as of the Record Date, of our common stock, Series B Preferred Stock, Series C Preferred Stock or Participating
    Warrants, you must deliver payment and a properly completed Rights Certificate to the Subscription Agent to be received before 5:00
    p.m., Eastern Time, on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022. You may deliver the documents and payments by first class mail or courier service. If you use first
    class mail for this purpose, we recommend using registered mail, properly insured, with return receipt requested.</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
    as of the Record Date you are a beneficial owner of shares of common stock, Series B Preferred Stock, Series C Preferred Stock or
    Participating Warrants that are registered in the name of a broker, dealer, bank or other nominee, you should instruct your broker,
    dealer, bank or other nominee to exercise your Subscription Rights on your behalf. Please follow the instructions of your nominee,
    who may require that you meet a deadline earlier than 5:00 p.m., Eastern Time, on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022.</FONT></P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

</DIV>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<DIV STYLE="padding: 0.1in; border: Black 1.5pt solid">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 25%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Payment
    Adjustments</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 73%; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
    you send a payment that is insufficient to purchase the number of Units requested, or if the number of Units requested is not specified
    in the Rights Certificate, the payment received will be applied to exercise Subscription Rights to the extent of the payment. If
    the payment exceeds the amount necessary for the full exercise of your Subscription Rights, including any over-subscription privilege
    exercised and permitted, the excess will be returned to you promptly in cash. You will not receive interest or a deduction on any
    payments refunded to you under the Rights Offering.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Delivery
    of Shares and Warrants</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
    soon as practicable after the expiration of the Rights Offering, and within five business days thereof, we expect to close on subscriptions
    and for the Subscription Agent to arrange for the issuance of the shares of Preferred Stock and Warrants purchased pursuant to the
    Rights Offering. All shares and Warrants that are purchased in the Rights Offering will be issued in book-entry, or uncertificated,
    form meaning that you will receive a direct registration, or DRS, account statement from our transfer agent reflecting ownership
    of these securities if you are a holder of record. If you hold your shares or Participating Warrants in the name of a bank, broker,
    dealer, or other nominee, DTC will credit your account with your nominee with the securities you purchased in the Rights Offering.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Non-transferability
    of Subscription Rights</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    Subscription Rights may not be sold, transferred, assigned or given away to anyone. The Subscription Rights will not be listed for
    trading on any stock exchange or market.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Transferability
    of Warrants</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    Warrants will be separately transferable following their issuance and through their expiration five years from the date of issuance.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>No
    Board Recommendation</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
    board of directors is not making a recommendation regarding your exercise of the Subscription Rights. You are urged to make your
    decision to invest based on your own assessment of our business and financial condition, our prospects for the future, the terms
    of the Rights Offering, the information in this prospectus and other information relevant to your circumstances. Please see &ldquo;Risk
    Factors&rdquo; for a discussion of some of the risks involved in investing in our securities.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>No
    Revocation</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Except
    as described below, all exercises of Subscription Rights are irrevocable, even if you later learn of information that you consider
    to be unfavorable to the exercise of your Subscription Rights.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Use
    of Proceeds</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Assuming
    the exercise of Subscription Rights to purchase all Units of the Rights Offering, after deducting fees and expenses and excluding
    any proceeds received upon exercise of any Warrants, we estimate the net proceeds of the Rights Offering will be approximately $9.2
    million. We intend to use the net proceeds from the exercise of Subscription Rights for general corporate purposes and to fund
    ongoing operations and expansion of our business. See &ldquo;Use of Proceeds.&rdquo;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

</DIV>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<DIV STYLE="padding: 0.1in; border: Black 1.5pt solid">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 25%"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Material
                                            U.S. Federal Income</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Tax
    Consequences </B></FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 73%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
    U.S. federal income tax purposes, we do not believe you should recognize income or loss upon receipt or exercise of a Subscription
    Right, but the receipt and exercise of the Subscription Rights is unclear in certain respects. You should consult your own tax advisor
    as to the tax consequences of the Rights Offering in light of your particular circumstances. See &ldquo;Material U.S. Federal Income
    Tax Consequences.&rdquo;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Extension,
    Amendment and Termination</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Although
                                            we do not presently intend to do so, we may extend the Rights Offering for additional time
                                            in our sole discretion for any reason for up to an additional 45 days. For example, we may
                                            decide that changes in the market price of our common stock warrant an extension, or we may
                                            decide that the degree of stockholder participation in the Rights Offering is less than the
                                            level we desire. In the event that we decide to extend the Rights Offering and you have already
                                            exercised your Subscription Rights, your subscription payment will remain with the Subscription
                                            Agent until such time as the Rights Offering closes or is terminated. We also reserve the
                                            right to amend or modify the terms of the Rights Offering, as appropriate. Our board of directors
                                            may for any reason terminate the Rights Offering at any time before the expiration of the
                                            Rights Offering. In the event that the Rights Offering is cancelled, all subscription payments
                                            received by the Subscription Agent will be returned, without interest or deduction, as soon
                                            as practicable.</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
    we should make any fundamental changes to the terms set forth in this prospectus, we will (i) file a post-effective amendment to
    the registration statement of which this prospectus forms a part, (ii) offer potential purchasers who have subscribed for rights
    the opportunity to cancel such subscriptions and issue a refund of any money advanced by such stockholder or eligible warrant holder,
    and (iii) recirculate an updated prospectus after the post-effective amendment is declared effective with the SEC.</FONT></P></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Subscription
    Agent</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">American
    Stock Transfer &amp; Trust Company, LLC</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Information
    Agent </B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">D.F.
    King &amp; Co., Inc.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Questions</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
    you have any questions about the Rights Offering, please contact the Information Agent, D.F. King &amp; Co., Inc., toll free at (866)
    620-2536, by mail at D.F. King &amp; Co., Inc., 48 Wall Street, 22nd Floor, New York, NY 10005 or by email at sintx@dfking.com.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Market
    for Common Stock</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
    common stock is listed on Nasdaq under the symbol &ldquo;SINT.&rdquo;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Market
    for Series D Preferred Stock</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
    is no established public trading market for the Series D Preferred Stock, and we do not expect a market to develop. In addition,
    we do not intend to apply for listing of the Series D Preferred Stock on any securities exchange or recognized trading system.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Market
    for Warrants</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
    is no established public trading market for the Warrants, and we do not expect a market to develop. In addition, we do not intend
    to apply for listing of the Warrants on any securities exchange or recognized trading system.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Dealer-manager
    </B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Maxim
    Group LLC will act as dealer-manager for the Rights Offering.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B></B></FONT></P>

</DIV>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_003"></A>INCORPORATION
OF CERTAIN INFORMATION BY REFERENCE</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
SEC allows us to &ldquo;incorporate by reference&rdquo; into this prospectus the information in other documents that we file with it.
This means that we can disclose important information to you by referring you to those documents. The information incorporated by reference
is considered to be a part of this prospectus, and information in documents that we file later with the SEC will automatically update
and supersede information contained in documents filed earlier with the SEC or contained in this prospectus. We incorporate by reference
in this prospectus the documents listed below and any future filings that we may make with the SEC under Sections 13(a), 13(c), 14, or
15(d) of the Exchange Act prior to the termination of the offering under this prospectus; provided, however, that we are not incorporating,
in each case, any documents or information deemed to have been furnished and not filed in accordance with SEC rules:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    Annual Report on <A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315222007776/form10-k.htm" STYLE="-sec-extract: exhibit">Form 10-K</A> for the year ended December 31, 2021;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    Quarterly Report on <A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315222013244/form10-q.htm" STYLE="-sec-extract: exhibit">Form 10-Q</A> for the quarter ended March 31, 2022;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    Current Report on <A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315222000320/form8-k.htm" STYLE="-sec-extract: exhibit">Form 8-K</A> filed on January 4, 2022;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&#9679;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">our Current Report on <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/1269026/000149315222018635/form8-k.htm" STYLE="-sec-extract: exhibit">Form 8-K</A> filed on July 6, 2022:</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    description of our common stock, which is contained in the Registration Statement on <A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000119312514040613/d672126d8a12b.htm" STYLE="-sec-extract: exhibit">Form 8-A</A>, as filed with the SEC on February
    7, 2014, as updated by the description of our common stock contained in <A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315222007776/ex4-11.htm" STYLE="-sec-extract: exhibit">Exhibit 4.11</A> to our Annual Report on Form 10-K for the fiscal
    year ended December 31, 2021 and including any amendment or report filed for the purpose of updating such description.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Additionally,
all documents filed by us with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act (i) prior to effectiveness of this
registration statement, and (ii) after the effective date of this registration statement and before the termination or completion of
any offering hereunder, shall be deemed to be incorporated by reference into this prospectus from the respective dates of filing of such
documents, except that we do not incorporate any document or portion of a document that is &ldquo;furnished&rdquo; to the SEC, but not
deemed &ldquo;filed.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
statement contained in this prospectus supplement, the accompanying prospectus or in a document incorporated or deemed to be incorporated
by reference into this prospectus supplement and the accompanying prospectus will be deemed to be modified or superseded for purposes
of this prospectus supplement and the accompanying prospectus to the extent that a statement contained in this prospectus supplement
and the accompanying prospectus or any other subsequently filed document that is deemed to be incorporated by reference into this prospectus
supplement and the accompanying prospectus modifies or supersedes the statement. Any statements so modified or superseded shall not be
deemed, except as so modified or superseded, to constitute a part of this prospectus supplement and the accompanying prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will furnish without charge to you, on written or oral request, a copy of any or all of the documents incorporated by reference in this
prospectus, including exhibits to these documents. You should direct any requests for documents to SINTX Technologies, Inc., Attention:
Investor Relations, 1885 West 2100 South, Salt Lake City, Utah 84119 or by calling (801) 839-3500.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
also may access these filings on our website at <I><U>www.sintx.com</U></I><U>.</U> We do not incorporate the information on our website
into this prospectus supplement or the accompanying prospectus and you should not consider any information on, or that can be accessed
through, our website as part of this prospectus supplement or the accompanying prospectus (other than those filings with the SEC that
we specifically incorporate by reference into this prospectus supplement and the accompanying prospectus).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_004"></A>WHERE
YOU CAN FIND MORE INFORMATION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have filed a registration statement on Form S-1 with the SEC under the Securities Act of 1933, as amended. This prospectus is part of
the registration statement, but the registration statement includes additional information and exhibits. We file annual, quarterly and
current reports, proxy statements and other information with the SEC. The SEC maintains a web site that contains reports, proxy and information
statements and other information regarding companies, such as ours, that file documents electronically with the SEC. The website address
is www.sec.gov. The information on the SEC&rsquo;s website is not part of this prospectus, and any references to this website or any
other website are inactive textual references only.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_005"></A>QUESTIONS
AND ANSWERS RELATING TO THE RIGHTS OFFERING</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>The
following are examples of what we anticipate will be common questions about this Rights Offering. The answers are based on selected information
included elsewhere in this prospectus. The following questions and answers do not contain all of the information that may be important
to you and may not address all of the questions that you may have about the Rights Offering. This prospectus and the documents incorporated
by reference into this prospectus contain more detailed descriptions of the terms and conditions of the Rights Offering and provides
additional information about us and our business, including potential risks related to the Rights Offering, the Units offered hereby,
and our business. We urge you to read this entire prospectus and the documents incorporated by reference into this prospectus.</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Why
are we conducting the Rights Offering?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are conducting the Rights Offering to raise additional capital for general corporate purposes and to fund ongoing operations and expansion
of our business.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
is a Unit?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
Unit consists of one share of Series D Convertible Preferred Stock and &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
warrants to purchase common stock, at a subscription price of $1,000 per Unit. No fractional Units will be issued. Each warrant
entitles you to purchase one share of common stock at an exercise price of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share, from the date of issuance through its
expiration five years after the date of issuance. Each share of Preferred Stock will have a stated value of $1,000 and will be
convertible into shares of our common stock at the conversion price $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;. The Preferred Stock do not generally have any voting rights
and will not be certificated. The shares of Preferred Stock and warrants that comprise each Unit are immediately separable and will
be issued separately in this Rights Offering, however, they may only be purchased as a Unit, and the Units will not trade as a
separate security.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
is the Rights Offering?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are distributing, at no charge, to holders of our common stock, Series B Preferred Stock, Series C Preferred Stock and holders of
the Participating Warrants, as of the Record Date, non-transferable Subscription Rights to purchase Units at a price of $1,000 per
Unit. The Subscription Rights will not be tradable. Each Unit consists of one share of our Preferred Stock and
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Warrants. See &ldquo;Are there risks in exercising my Subscription
Rights?&rdquo; below. Each Warrant will be exercisable for one share of our common stock. Upon expiration of the Rights Offering,
the Preferred Stock and Warrants comprising the Units will immediately separate and will be issued separately but may only be
purchased as a Unit, and the Units will not trade as a separate security. There is no public trading market for the Preferred Stock
or the Warrants and they will not be listed for trading on Nasdaq or any other securities exchange or market. The common stock to be
issued upon conversion of the Preferred Stock or exercise of the Warrants, like our existing shares of common stock, will be traded
on the NASDAQ Capital Market under the symbol &ldquo;SINT.&rdquo; You will receive one Subscription Right for every share of common
stock (including each share of common stock issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and
exercise of Participating Warrants) that you owned as of 5:00 p.m., Eastern Time, on the Record Date. Each Subscription Right
entitles the record holder to a Basic Subscription Right and an Over-Subscription Privilege. The Subscription Rights will expire if
they are not exercised by 5:00 p.m., Eastern Time, on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022, unless we extend or earlier terminate the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
are the Basic Subscription Rights?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
every share you owned (including each share of common stock issuable upon conversion of Series B Preferred Stock, Series C Preferred
Stock and exercise of Participating Warrants) as of the Record Date, you will receive one Basic Subscription Right, which gives you
the opportunity to purchase one Unit, consisting of one share of our Preferred Stock and
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Warrants, for a price of $1,000 per Unit. For example, if you owned 100
shares of common stock as of the Record Date, you will receive 100 Subscription Rights and will have the right to purchase 100
shares of our Preferred Stock and Warrants to purchase &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; shares of our
common stock for $1,000 per Unit (or a total payment of $100,000). You may exercise all or a portion of your Basic Subscription
Rights or you may choose not to exercise any Basic Subscription Rights at all.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you are a record holder of our common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants, the number
of shares you may purchase pursuant to your Basic Subscription Rights is indicated on the enclosed Rights Certificate. If you hold your
common shares, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants in the name of a broker, dealer, bank or
other nominee who uses the services of the Depository Trust Company, or DTC, you will not receive a Rights Certificate. Instead, DTC
will issue one Subscription Right to your nominee record holder for each share of our common stock (including each share of common stock
issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants) that you beneficially
own as of the Record Date. If you are not contacted by your nominee, you should contact your nominee as soon as possible.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
is the Over-Subscription Privilege?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you exercise your Basic Subscription Rights in full, you may also choose to exercise your Over-Subscription Privilege to purchase a portion
of any Units that are not purchased by other holders of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating
Warrant holders and remain available under the Rights Offering. You should indicate on your Rights Certificate, or the form provided
by your nominee if your shares are held in the name of a nominee, how many additional Units you would like to purchase pursuant to your
Over-Subscription Privilege, which we refer to as your Over-Subscription Request.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to stock ownership limitations, if enough Units are available, we will seek to honor your Over-Subscription Request in full. If Over-
Subscription Requests exceed the number of Units available, however, we will allocate the available Units pro-rata among the stockholders
and warrant holders exercising the Over-Subscription Privilege in proportion to the number of shares of our common stock (including each
share of common stock issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants)
each of those stockholders and warrant holders owned on the Record Date, relative to the number of shares (including each share of common
stock issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants) owned on
the Record Date by all record holders exercising the Over-Subscription Privilege. If this pro-rata allocation results in any stockholders
or warrant holders receiving a greater number of Units than the stockholder or warrant holders subscribed for pursuant to the exercise
of the Over-Subscription Privilege, then such stockholder or warrant holder will be allocated only that number of Units for which the
stockholder or warrant holder oversubscribed, and the remaining Units will be allocated among all other stockholders and warrant holders
exercising the Over-Subscription Privilege on the same pro rata basis described above. The proration process will be repeated until all
Units have been allocated. See &ldquo;The Rights Offering- Limitation on the Purchase of Units&rdquo; for a description of certain stock
ownership limitations.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
properly exercise your Over-Subscription Privilege, you must deliver to the Subscription Agent the subscription payment related to your
Over- Subscription Privilege before the Rights Offering expires. Because we will not know the total number of unsubscribed Units before
the expiration of the Rights Offering, if you wish to maximize the number of Units you purchase pursuant to your over-subscription privilege,
you will need to deliver payment in an amount equal to the aggregate Subscription Price for the maximum number of Units available, assuming
that no common, Series B or Series C stockholder or warrant holders other than you has purchased any Units pursuant to such stockholder&rsquo;s
or warrant holder&rsquo;s basic subscription right and over-subscription privilege. See &ldquo;The Rights Offering- The Subscription
Rights-Over-Subscription Privilege.&rdquo; To the extent you properly exercise your Over-Subscription Privilege for an number of Units
that exceeds the number of unsubscribed Units available to you, any excess subscription payments will be returned to you within 10 business
days after the expiration of the Rights Offering, without interest or deduction.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">American
Stock Transfer &amp; Trust Company, LLC, our Subscription Agent for the Rights Offering, will determine the allocation of Over-Subscription
Requests based on the formula described above.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>May
the Subscription Rights that I exercise be reduced for any reason?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Yes.
While we are distributing to holders of our common stock, Series B Preferred Stock, Series C Preferred Stock, and holders of the Participating
Warrants, one Subscription Right for every share of common stock (including each share of common stock issuable upon conversion of Series
B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants) owned on the Record Date, we are only seeking to
raise $10 million dollars in gross proceeds in this Rights Offering. As a result, based on 24,719,574 shares of common stock outstanding
as of July 5, 2022, 19,306 shares of common stock issuable upon conversion of 26 shares of Series B Preferred Stock, 34,428 shares
of common stock issuable upon conversion of 51 shares of Series C Preferred Stock and 1,117,562 shares of common stock issuable
upon exercise of Participating Warrants, we would grant Subscription Rights to acquire 25,890,870 Units but will only accept subscriptions
for 10,000 Units. Accordingly, enough Units may not be available to honor your subscription in full. If exercises of Basic Subscription
Rights exceed the number of Units available in the Rights Offering, we will allocate the available Units pro-rata among the record holders
exercising the Basic Subscription Rights in proportion to the number of shares of our common stock (including each share of common stock
issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants) each of those
record holders owned on the Record Date, relative to the number of shares owned on the Record Date by all record holders exercising the
Basic Subscription Right. If this pro-rata allocation results in any record holders receiving a greater number of Units than the record
holder subscribed for pursuant to the exercise of the Basic Subscription Rights, then such record holder will be allocated only that
number of Units for which the record holder subscribed, and the remaining Units will be allocated among all other record holders exercising
their Basic Subscription Rights on the same pro rata basis described above. The proration process will be repeated until all Units have
been allocated. Please also see the discussion under &ldquo;The Rights Offering-The Subscription Rights-Over-Subscription Privilege&rdquo;
and &ldquo;The Rights Offering-Limitation on the Purchase of Units&rdquo; for a description potential proration as to the Over-Subscription
Privilege and certain stock ownership limitations.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
for any reason the number of Units allocated to you is less than you have subscribed for, then the excess funds held by the Subscription
Agent on your behalf will be returned to you, without interest, as soon as practicable after the Rights Offering has expired and all
prorating calculations and reductions contemplated by the terms of the Rights Offering have been effected, and we will have no further
obligations to you.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
are the terms of the Series D Convertible Preferred Stock?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
share of Preferred Stock will be convertible at the option of the holder at any time, into the number of shares of our common stock determined
by dividing the $1,000 stated value per share of the Preferred Stock by a conversion price of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share, subject to adjustment. The
Preferred Stock has certain conversion rights and dividend rights as described in more detail herein.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
are the terms of the Warrants?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
Warrant entitles the holder to purchase one share of our common stock at an exercise price of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share from the date of issuance through
its expiration five years from the date of issuance. The Warrants will be exercisable for cash, or, solely during any period when a registration
statement for the exercise of the Warrants is not in effect, on a cashless basis.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Are
the Preferred Stock or Warrants listed?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
is no public trading market for the Preferred Stock or Warrants and they will not be listed for trading on Nasdaq or any other securities
exchange or market. The Warrants will be issued in registered form under a warrant agent agreement with American Stock Transfer &amp;
Trust Company, LLC, as warrant agent.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Will
fractional shares be issued upon exercise of Subscription Rights, the conversion of Preferred Stock, or the exercise of Warrants?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No.
We will not issue fractional shares of common stock in the Rights Offering. We will only distribute Subscription Rights to acquire whole
Units, rounded down to the nearest whole number of underlying common shares giving rise to such Subscription Rights. Any excess subscription
payments received by the Subscription Agent will be returned within 10 business days after expiration of the Rights Offering, without
interest or deduction.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Additionally,
no fractional shares of common stock will be issued as a result of the conversion of shares of Preferred Stock or the exercise of Warrants.
Instead, for any such fractional share that would otherwise have been issuable upon conversion of shares of Preferred Stock, we may,
at our election, pay a cash payment equal to such fraction multiplied by the conversion price or round up to the next whole share, and
for any such fractional share that would have otherwise been issued upon exercise of Warrants, we will round up such fraction to the
next whole share.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
effect will the Rights Offering have on our outstanding common stock?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Assuming
no other transactions by us involving our capital stock prior to the expiration of the Rights Offering, and if the Rights Offering is
fully subscribed, upon consummation of the Rights Offering we will have &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;shares
of common stock issued and outstanding, 26 shares of Series B Preferred Stock issued and outstanding convertible into an aggregate
of 19,306&nbsp; shares of our common stock, 51 shares of Series C Preferred Stock issued and outstanding convertible into
an aggregate of &nbsp;34,428 shares of our common stock, and 10,000 shares of Preferred Stock issued and outstanding convertible
into an aggregate of &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;shares of our common stock, and Warrants
to purchase an additional &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; shares of our common stock issued and outstanding.
The exact number of shares of Preferred Stock and Warrants that we will issue in this offering will depend on the number of Units that
are subscribed for in the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>How
was the Subscription Price determined?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
determining the Subscription Price, the directors considered, among other things, the following factors:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 44.6pt; text-align: justify; text-indent: -17.75pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    current and historical trading prices of our common stock;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    price at which stockholders might be willing to participate in the Rights Offering;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    value of the common stock issuable upon conversion of the Preferred Stock being issued as a component of the Unit;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    value of the Warrant being issued as a component of the Unit;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    need for additional capital and liquidity;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    cost of capital from other sources; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">comparable
    precedent transactions, including the percentage of shares offered, the terms of the subscription rights being offered, the subscription
    price and the discount that the subscription price represented to the immediately prevailing closing prices for those offerings.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
conjunction with the review of these factors, the board of directors also reviewed our history and prospects, including our past and
present earnings and cash requirements, our prospects for the future, the outlook for our industry and our current financial condition.
The board of directors also believed that the Subscription Price should be designed to provide an incentive to our current stockholders
to participate in the Rights Offering and exercise their Basic Subscription Right and their Over-Subscription Privilege.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Subscription Price does not necessarily bear any relationship to any established criteria for value. You should not consider the Subscription
Price as an indication of actual value of our company or our common stock. The market price of our common stock may decline during or
after the Rights Offering. You should obtain a current price quote for our common stock and perform an independent assessment of our
Preferred Stock and Warrants before exercising your Subscription Rights and make your own assessment of our business and financial condition,
our prospects for the future, the terms of the Rights Offering, the information in this prospectus and the other considerations relevant
to your circumstances. Once made, all exercises of Subscription Rights are irrevocable. In addition, there is no established trading
market for the Preferred Stock or the Warrants to be issued pursuant to this offering, and the Preferred Stock and the Warrants may not
be widely distributed.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Am
I required to exercise all the Basic Subscription Rights I receive in the Rights Offering?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No.
You may exercise any number of your Basic Subscription Rights, or you may choose not to exercise any Basic Subscription Rights. If you
do not exercise any Basic Subscription Rights, the number of shares of our common stock you own (including each share of common stock
issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants) will not change.
However, if you choose to not exercise your Basic Subscription Rights in full and other holders of Subscription Rights do exercise, your
proportionate ownership interest in our company will decrease. If you do not exercise your Basic Subscription Rights in full, you will
not be entitled to exercise your Over-Subscription Privilege.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>How
soon must I act to exercise my Subscription Rights?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you received a Rights Certificate and elect to exercise any or all of your Subscription Rights, the Subscription Agent must receive your
completed and signed Rights Certificate and payment for both your Basic Subscription Rights and any Over-Subscription Privilege you elect
to exercise before the Rights Offering expires on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022, at 5:00 p.m., Eastern Time, unless we extend or earlier terminate the Rights
Offering. If you hold your common shares, Series B Preferred Stock, Series C Preferred Stock, or Participating Warrants in the name of
a broker, dealer, bank or other nominee, your nominee may establish a deadline before the expiration of the Rights Offering by which
you must provide it with your instructions to exercise your Subscription Rights, along with the required subscription payment.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>May
I transfer my Subscription Rights?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No.
The Subscription Rights may be exercised only by the common, Series B Preferred and Series C Preferred stockholders and Participating
Warrant holders to whom they are distributed, and they may not be sold, transferred, assigned or given away to anyone else, other than
by operation of law. As a result, Rights Certificates may be completed only by the stockholder or warrant holder who receives the certificate.
We do not intend to apply for the listing of the Subscription Rights on any securities exchange or recognized trading market.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Will
our directors and executive officers participate in the Rights Offering?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
the extent they hold common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating Warrants as of the Record Date,
our directors and executive officers will be entitled to participate in the Rights Offering on the same terms and conditions applicable
to other Rights holders.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Are
we requiring a minimum subscription to complete the Rights Offering?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
is no aggregate minimum we must receive to complete the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Has
the board of directors made a recommendation to stockholders regarding the Rights Offering?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No.
Our board of directors is making no recommendation regarding your exercise of the Subscription Rights. Rights holders who exercise Subscription
Rights will incur investment risk on new money invested. We cannot predict the price at which our shares of common stock will trade after
the Rights Offering. On July 7, 2022, the last reported sale price of our common stock on Nasdaq was $0.44 per share. You
should make your decision based on your assessment of our business and financial condition, our prospects for the future, the terms of
the Rights Offering, the information contained in this prospectus and other considerations relevant to your circumstances. See &ldquo;Risk
Factors&rdquo; for discussion of some of the risks involved in investing in our securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>How
do I exercise my Subscription Rights?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you are a common or Series B Preferred or Series C Preferred stockholder or Participating Warrant holder of record (meaning you hold
your shares of our common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating Warrants in your name and not through
a broker, dealer, bank or other nominee) and you wish to participate in the Rights Offering, you must deliver a properly completed and
signed Rights Certificate, together with payment of the Subscription Price for both your Basic Subscription Rights and any Over-Subscription
Privilege you elect to exercise, to the Subscription Agent before 5:00 p.m., Eastern Time, on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022. If you are exercising your Subscription
Rights through your broker, dealer, bank or other nominee, you should promptly contact your broker, dealer, bank or other nominee and
submit your subscription documents and payment for the Units subscribed for in accordance with the instructions and within the time period
provided by your broker, dealer, bank or other nominee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
if my shares are held in &ldquo;street name&rdquo;?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you hold your shares of our common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating Warrants in the name of
a broker, dealer, bank or other nominee, then your broker, dealer, bank or other nominee is the record holder of the shares you beneficially
own. The record holder must exercise the Subscription Rights on your behalf. Therefore, you will need to have your record holder act
for you.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you wish to participate in this Rights Offering and purchase Units, please promptly contact the record holder of your shares or Participating
Warrants. We will ask the record holder of your shares or Participating Warrants, who may be your broker, dealer, bank or other nominee,
to notify you of this Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
form of payment is required?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
must timely pay the full Subscription Price for the full number of Units you wish to acquire pursuant to the exercise of Subscription
Rights by delivering to the Subscription Agent a:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">personal
    check drawn on a U.S. bank;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">certified
    check drawn on a U.S. bank;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">U.S.
    Postal money order; or</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">wire
    transfer.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 17.75pt; text-align: justify; text-indent: -17.75pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you send payment by personal uncertified check, payment will not be deemed to have been delivered to the Subscription Agent until the
check has cleared. As such, any payments made by personal check should be delivered to the Subscription Agent no fewer than three business
days prior to the expiration date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you send a payment that is insufficient to purchase the number of Units you requested, or if the number of Units you requested is not
specified in the forms, the payment received will be applied to exercise your Subscription Rights to the fullest extent possible based
on the amount of the payment received.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Will
I receive interest on any funds I deposit with the Subscription Agent?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No.
You will not be entitled to any interest on any funds that are deposited with the Subscription Agent pending completion or cancellation
of the Rights Offering. If the Rights Offering is cancelled for any reason, the Subscription Agent will return this money to subscribers,
without interest or penalty, as soon as practicable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>When
will I receive my new shares of Preferred Stock and Warrants?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
soon as practicable after the expiration of the Rights Offering, and within five business days thereof, we expect to close on subscriptions
and for the Subscription Agent to arrange for the issuance of the shares of Preferred Stock and Warrants purchased in the Rights Offering.
At closing, all prorating calculations and reductions contemplated by the terms of the Rights Offering will have been effected and payment
to us for the subscribed-for Units will have cleared. All shares and Warrants that you purchase in the Rights Offering will be issued
in book-entry, or uncertificated, form meaning that you will receive a direct registration, or DRS, account statement from our transfer
agent reflecting ownership of these securities if you are a holder of record. If you hold your common, Series B Preferred or Series C
Preferred Stock or Participating Warrants in the name of a broker, dealer, bank or other nominee, DTC will credit your account with your
nominee with the securities you purchase in the Rights Offering. American Stock Transfer &amp; Trust Company, LLC, is acting as the warrant
agent in this offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>After
I send in my payment and Rights Certificate to the Subscription Agent, may I cancel my exercise of Subscription Rights?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No.
Exercises of Subscription Rights are irrevocable, even if you later learn information that you consider to be unfavorable to the exercise
of your Subscription Rights. You should not exercise your Subscription Rights unless you are certain that you wish to purchase Units
at the Subscription Price.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>How
much will our company receive from the Rights Offering?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Assuming
that all Units are sold in the Rights Offering, we estimate that the net proceeds from the Rights Offering will be approximately $9.2
million, based on the Subscription Price of $1,000 per Unit, after deducting fees and expenses payable to the dealer-manager, before
deducting other estimated expenses payable by us and excluding any proceeds received upon exercise of any Warrants. If all Warrants
included in the Units are exercised for cash at the exercise price of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per
share, we will receive an additional $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; million. We intend to use the
net proceeds for general corporate purposes and to fund ongoing operations and expansion of our business. See &ldquo;Use of Proceeds.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Are
there risks in exercising my Subscription Rights?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Yes.
The exercise of your Subscription Rights involves risks. Exercising your Subscription Rights involves the purchase of shares of our Preferred
Stock and Warrants to purchase common stock and you should consider this investment as carefully as you would consider any other investment.
In addition, our Preferred Stock and Warrants will not be listed on Nasdaq and a market for the Preferred Stock and Warrants does not
exist. See &ldquo;Risk Factors&rdquo; for discussion of additional risks involved in investing in our securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Can
the board of directors terminate, extend or amend the Rights Offering?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Yes.
Our board of directors may decide to terminate the Rights Offering at any time and for any reason before the expiration of the Rights
Offering. We also have the right to extend the Rights Offering for additional periods in our sole discretion for up to an additional
45 days. We do not presently intend to extend the Rights Offering. We will notify stockholders and the public if the Rights Offering
is terminated or extended by issuing a press release announcing the extension no later than 9:00 a.m., Eastern Time, on the next business
day after the most recently announced expiration date of the Rights Offering. In the event that we decide to extend the Rights Offering
and you have already exercised your Subscription Rights, your subscription payment will remain with the Subscription Agent until such
time as the Rights Offering closes or is terminated.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
board of directors also reserves the right to amend or modify the terms of the Rights Offering in its sole discretion. If we should make
any fundamental changes to the terms of the Rights Offering set forth in this prospectus, we will file a post-effective amendment to
the registration statement in which this prospectus is included, offer potential purchasers who have subscribed for rights the opportunity
to cancel such subscriptions and issue a refund of any money advanced by such stockholder and recirculate an updated prospectus after
the post-effective amendment is declared effective by the SEC. In addition, upon such event, we may extend the Expiration Date of the
Rights Offering to allow holders of rights ample time to make new investment decisions and for us to recirculate updated documentation.
Promptly following any such occurrence, we will issue a press release announcing any changes with respect to the Rights Offering and
the new expiration date. The terms of the Rights Offering cannot be modified or amended after the Expiration Date of the Rights Offering.
Although we do not presently intend to do so, we may choose to amend or modify the terms of the Rights Offering for any reason, including,
without limitation, in order to increase participation in the Rights Offering. Such amendments or modifications may include a change
in the subscription price, although no such change is presently contemplated. If we should make any fundamental changes to the terms
set forth in this prospectus, we will (i) file a post-effective amendment to the registration statement of which this prospectus forms
a part, (ii) offer potential purchasers who have subscribed for rights the opportunity to cancel such subscriptions, and (iii) issue
a refund of any money advanced by such stockholder or eligible warrant holder and recirculate an updated prospectus after the post-effective
amendment is declared effective with the SEC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 6pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>If
the Rights Offering is not completed or is terminated, will my subscription payment be refunded to me?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Yes.
The Subscription Agent will hold all funds it receives in a segregated bank account until completion of the Rights Offering. If we do
not complete the Rights Offering, all subscription payments received by the Subscription Agent will be returned within 10 business days
after the termination or expiration of the Rights Offering, without interest or deduction. If you own shares in &ldquo;street name,&rdquo;
it may take longer for you to receive your subscription payment because the Subscription Agent will return payments through the record
holder of your shares. In addition, if we should make any fundamental changes to the terms set forth in this prospectus, we will (i)
file a post-effective amendment to the registration statement of which this prospectus forms a part, (ii) offer potential purchasers
who have subscribed for rights the opportunity to cancel such subscriptions, and (iii) issue a refund of any money advanced by such stockholder
or eligible warrant holder and recirculate an updated prospectus after the post-effective amendment is declared effective with the SEC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>How
do I exercise my Rights if I live outside the United States?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Subscription Agent will hold Rights Certificates for stockholders having addresses outside the United States. To exercise Subscription
Rights, foreign stockholders must notify the Subscription Agent and timely follow other procedures described in the section entitled
&ldquo;The Rights Offering - Foreign Stockholders.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
fees or charges apply if I purchase shares in the Rights Offering?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are not charging any fee or sales commission to issue Subscription Rights to you or to issue shares of Preferred Stock or Warrants to
you if you exercise your Subscription Rights. If you exercise your Subscription Rights through a broker, dealer, bank or other nominee,
you are responsible for paying any fees your broker, dealer, bank or other nominee may charge you.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>What
are the U.S. federal income tax consequences of receiving and/or exercising my Subscription Rights?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
U.S. federal income tax purposes, we do not believe you should recognize income or loss in connection with the receipt or exercise of
Subscription Rights in the Rights Offering, but the receipt and exercise of the Subscription Rights is unclear in certain respects. You
should consult your own tax advisor as to your tax consequences resulting from the receipt and exercise of Subscription Rights, including
the receipt, ownership and disposition of our Preferred Stock, Warrants, and common stock received upon the conversion of Preferred Stock
or the exercise of Warrants. For further information, see &ldquo;Material U.S. Federal Income Tax Consequences.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>To
whom should I send my forms and payment?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
your shares of common stock, Series B Preferred stock, Series C Preferred stock, or Participating Warrants are held in the name of a
broker, dealer, bank or other nominee, then you should send your subscription documents and subscription payment to that broker, dealer,
bank or other nominee. If you are the record holder, then you should send your subscription documents, Rights Certificate, and subscription
payment to the Subscription Agent by hand delivery, first class mail or courier service to:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" ALIGN="CENTER" STYLE="font: 10pt Times New Roman, Times, Serif; width: 75%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: black 1.5pt solid; width: 49%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>By
    mail:</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: black 1.5pt solid; width: 49%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>By
    hand or overnight courier:</I></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
or, if applicable, your nominee are solely responsible for completing delivery to the Subscription Agent of your subscription documents,
Rights Certificate and payment. You should allow sufficient time for delivery of your subscription materials to the Subscription Agent
and clearance of payment before the expiration of the Rights Offering at 5:00 p.m. Eastern Time on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Whom
should I contact if I have other questions?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you have other questions or need assistance, please contact the Information Agent: D.F. King &amp; Co., Inc., toll free at (866) 620-2536,
by mail at D.F. King &amp; Co., Inc., 48 Wall Street, 22nd Floor, New York, NY 10005 or by email at sintx@dfking.com.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Who
is the dealer-manager?</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Maxim
Group LLC is acting as the sole dealer-manager for the Rights Offering. Under the terms and subject to the conditions contained in the
dealer-manager agreement, the dealer-manager will use its best efforts to solicit the exercise of Subscription Rights. We have agreed
to pay the dealer-manager certain fees for acting as dealer-manager and to reimburse the dealer-manager for certain out-of-pocket expenses
incurred in connection with this offering. The dealer-manager is not underwriting or placing any of the Subscription Rights or the shares
of our Preferred Stock or Warrants being issued in the Rights Offering and is not making any recommendation with respect to such Subscription
Rights (including with respect to the exercise or expiration of such Subscription Rights), shares of Preferred Stock or Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_006"></A>RISK
FACTORS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Investing
in our securities involves a high degree of risk. Before making an investment decision with respect to our securities, we urge you to
carefully consider the risks described in the &ldquo;Risk Factors&rdquo; section of our Annual Report on Form 10-K for the year ended
December 31, 2021 and our subsequent Quarterly Reports on Form 10-Q, which are incorporated by reference into this prospectus. These
risk factors relate to our business, intellectual property, regulatory matters, and ownership of our common stock. In addition, the following
risk factors present material risks and uncertainties associated with the Rights Offering. The risks and uncertainties incorporated by
reference into this prospectus or described below are not the only ones we face. Additional risks and uncertainties not presently known
or which we consider immaterial as of the date hereof may also have an adverse effect on our business. If any of the matters discussed
in the following risk factors were to occur, our business, financial condition, results of operations, cash flows or prospects could
be materially adversely affected, the market price of our common stock could decline and you could lose all or part of your investment
in our securities.</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Risks
Related to the Rights Offering</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Our
management will have broad discretion over the use of the net proceeds from this offering, you may not agree with how we use the proceeds
and the proceeds may not be invested successfully.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
management will have broad discretion as to the use of the net proceeds from this offering and could use them for purposes other than
those contemplated at the time of commencement of this offering. Accordingly, you will be relying on the judgment of our management regarding
the use of these net proceeds, and you will not have the opportunity, as part of your investment decision, to assess whether the proceeds
are being used appropriately. It is possible that, pending their use, we may invest the net proceeds in a way that does not yield a favorable,
or any, return for us. The failure of our management to use such funds effectively could have a material adverse effect on our business,
financial condition, operating results and cash flows.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Your
interest in our company may be diluted as a result of this Rights Offering.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stockholders
and warrant holders who do not fully exercise their Subscription Rights should expect that they will, at the completion of this offering,
own a smaller proportional interest in our company on a fully-diluted basis than would otherwise be the case had they fully exercised
their Subscription Rights. Further, the shares issuable upon the exercise of the Warrants to be issued pursuant to the Rights Offering
will dilute the ownership interest of stockholders not participating in this offering or holders of Warrants who have not exercised them.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Further,
if you purchase Units in this offering at the Subscription Price, you may suffer immediate and substantial dilution in the net tangible
book value of our common stock. See &ldquo;Dilution&rdquo; in this prospectus for a more detailed discussion of the dilution which may
incur in connection with this offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Completion
of the Rights Offering is not subject to us raising a minimum offering amount.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Completion
of the Rights Offering is not subject to us raising a minimum offering amount and, therefore, proceeds may be insufficient to meet our
objectives, thereby increasing the risk to investors in this offering, including investing in a company that continues to require capital.
See &ldquo;Use of Proceeds.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>This
Rights Offering may cause the trading price of our common stock to decrease.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Subscription Price, together with the number of shares of common stock issuable upon conversion of the Preferred Stock and Warrants we
propose to issue and ultimately will issue if this Rights Offering is completed, may result in an immediate decrease in the market price
of our common stock. This decrease may continue after the completion of this Rights Offering. If that occurs, you may have committed
to buy shares of our common stock at a price greater than the prevailing market price. We cannot predict the effect, if any, that the
availability of shares for future sale represented by the Warrants issued in connection with the Rights Offering will have on the market
price of our common stock from time to time. Further, if a substantial number of Subscription Rights are exercised and the holders of
the shares received upon exercise of those Subscription Rights or the related Warrants choose to sell some or all of the shares underlying
the Subscription Rights or the related Warrants, the resulting sales could depress the market price of our common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Holders
of our Preferred Stock and Warrants will have no rights as a common stockholder until such holders convert or exercise their Preferred
Stock or Warrants, respectively, and acquire our common stock.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Until
holders of Preferred Stock or Warrants acquire shares of our common stock upon conversion or exercise of the Preferred Stock or Warrants,
respectively, holders of such securities will have no rights with respect to the shares of our common stock underlying such Preferred
Stock or Warrants. Upon conversion or exercise of the Preferred Stock or Warrants, respectively, the holders thereof will be entitled
to exercise the rights of a common stockholder only as to matters for which the record date occurs after the exercise date. Prior to
conversion, holders of Preferred Stock will have limited voting rights.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>If
we terminate this offering for any reason, we will have no obligation other than to return subscription monies within 10 business days.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may decide, in our sole discretion and for any reason, to cancel or terminate the Rights Offering at any time prior to the expiration
date. If this offering is cancelled or terminated, we will have no obligation with respect to Subscription Rights that have been exercised
except to return within 10 business days, without interest or deduction, all subscription payments deposited with the Subscription Agent.
If we terminate this offering and you have not exercised any Subscription Rights, such Subscription Rights will expire and be worthless.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
Subscription Price determined for this offering is not an indication of the fair value of our common stock.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
determining the Subscription Price, our board of directors considered a number of factors, including, but not limited to, our need to
raise capital in the near term to continue our operations, the current and historical trading prices of our common stock, a price that
would increase the likelihood of participation in the Rights Offering, the cost of capital from other sources, the value of the Preferred
Stock and Warrants being issued as components of the Unit, and comparable precedent transactions. The Subscription Price does not necessarily
bear any relationship to any established criteria for value. No valuation consultant or investment banker has opined upon the fairness
or adequacy of the Subscription Price. You should not consider the Subscription Price as an indication of the value of our company or
our common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>If
you do not act on a timely basis and follow subscription instructions, your exercise of Subscription Rights may be rejected.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Holders
of Subscription Rights who desire to purchase shares of our Preferred Stock and Warrants in this offering must act on a timely basis
to ensure that all required forms and payments are actually received by the Subscription Agent prior to 5:00 p.m., New York City time,
on the expiration date, unless extended. If you are a beneficial owner of shares of common stock, Series B Preferred Stock, Series C
Preferred Stock, or Participating Warrants and you wish to exercise your Subscription Rights, you must act promptly to ensure that your
broker, dealer, bank, trustee or other nominee acts for you and that all required forms and payments are actually received by your broker,
dealer, bank, trustee or other nominee in sufficient time to deliver such forms and payments to the Subscription Agent to exercise the
Subscription Rights granted in this offering that you beneficially own prior to 5:00 p.m., New York City time on the expiration date,
as may be extended. We will not be responsible if your broker, dealer, bank, trustee or other nominee fails to ensure that all required
forms and payments are received by the Subscription Agent prior to 5:00 p.m., New York City time, on the expiration date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you fail to complete and sign the required subscription forms, send an incorrect payment amount, or otherwise fail to follow the subscription
procedures that apply to your exercise in this Rights Offering, the Subscription Agent may, depending on the circumstances, reject your
subscription or accept it only to the extent of the payment received. Neither we nor the Subscription Agent undertakes to contact you
concerning an incomplete or incorrect subscription form or payment, nor are we under any obligation to correct such forms or payment.
We have the sole discretion to determine whether a subscription exercise properly follows the subscription procedures.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>You
may not receive all of the Units for which you subscribe.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">While
we are distributing to holders of our common stock, Series B Preferred Stock, Series C Preferred Stock, and Participating Warrants, one
Subscription Right for every share of common stock (including each share of common stock issuable upon conversion of Series B Preferred
Stock, Series C Preferred Stock, and exercise of Participating Warrants) owned on the Record Date, we are only seeking to raise $10 million
dollars in gross proceeds in this Rights Offering. As a result, based on 24,719,574 shares of common stock outstanding as of July
5, 2022, and 19,306 shares of common stock issuable upon conversion of 26 shares of our Series B Preferred Stock, 34,428 shares
of common stock issuable upon conversion of 51 shares of our Series C Preferred Stock and 1,117,562 shares of common stock issuable
upon exercise of Participating Warrants, we would grant Subscription Rights to acquire 25,890,870 Units but will only accept subscriptions
for 10,000 Units. Accordingly, enough Units may not be available to honor your subscription in full. If excess Units are available after
the exercise of Basic Subscription Rights, holders who fully exercise their Basic Subscription Rights will be entitled to subscribe for
an additional number of Units. Over-Subscription Privileges will be allocated pro rata among Rights holders who over-subscribed, based
on the number of over-subscription Units to which they have subscribed. We cannot guarantee that you will receive any or the entire number
of Units for which you subscribed. If for any reason the number of Units allocated to you is less than you have subscribed for, then
the excess funds held by the Subscription Agent on your behalf will be returned to you, without interest, as soon as practicable after
the Rights Offering has expired and all prorating calculations and reductions contemplated by the terms of the Rights Offering have been
effected, and we will have no further obligations to you.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
we otherwise agree in writing, a person or entity, together with related persons or entities, may not exercise Subscription Rights (including
Over-Subscription Privileges) to purchase Units that, when aggregated with their existing ownership, would result in such person or entity,
together with any related persons or entities, owning in excess of 19.99% of our issued and outstanding shares of common stock following
the closing of the transactions contemplated by this Rights Offering. If the number of shares allocated to you is less than your subscription
request, then the excess funds held by the Subscription Agent on your behalf will be returned to you, without interest, as soon as practicable
after the Rights Offering has expired and all prorating calculations and reductions contemplated by the terms of the Rights Offering
have been effected, and we will have no further obligations to you.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>If
you make payment of the Subscription Price by personal check, your check may not clear in sufficient time to enable you to purchase shares
in this Rights Offering.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
personal check used to pay for shares and Warrants to be issued in this Rights Offering must clear prior to the expiration date of this
Rights Offering, and the clearing process may require five or more business days. If you choose to exercise your Subscription Rights,
in whole or in part, and to pay for shares and Warrants by personal check and your check has not cleared prior to the expiration date
of this Rights Offering, you will not have satisfied the conditions to exercise your Subscription Rights and will not receive the shares
and Warrants you wish to purchase.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
receipt of Subscription Rights may be treated as a taxable distribution to you.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
believe the distribution of the Subscription Rights in this Rights Offering should be a non-taxable distribution to holders of shares
of common stock, Series B Preferred Stock, Series C Preferred Stock, and holders of Participating Warrants, under Section 305(a) of the
Internal Revenue Code of 1986, as amended, or the Code. Please see the discussion under the heading &ldquo;Material U.S. Federal Income
Tax Consequences&rdquo; below. This position is not binding on the IRS, or the courts, however. If this Rights Offering is deemed to
be part of a &ldquo;disproportionate distribution&rdquo; under Section 305 of the Code, your receipt of Subscription Rights in this offering
may be treated as the receipt of a taxable distribution to you equal to the fair market value of the Subscription Rights. Any such distribution
would be treated as dividend income to the extent of our current and accumulated earnings and profits, if any, with any excess being
treated as a return of capital to the extent thereof and then as capital gain. Each holder of shares of common stock and each holder
of Participating Warrants is urged to consult his, her or its own tax advisor with respect to the particular tax consequences of this
Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Proposed
legislation in the U.S. Congress, including changes in U.S. tax law, may adversely impact the Company and the value of our Subscription
Rights, shares of our common stock and Preferred Stock, and Warrants.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Changes
to U.S. tax laws (which changes may have retroactive application) could adversely affect the Company or holders of our Subscription Rights,
shares of our common stock and Preferred Stock, and Warrants. In recent years, many changes to U.S. federal income tax laws have been
proposed and made, and additional changes to U.S. federal income tax laws are likely to continue to occur in the future.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
U.S. Congress is currently considering numerous items of legislation which may be enacted prospectively or with retroactive effect, which
legislation could adversely impact the Company&rsquo;s financial performance and the value of our Subscription Rights, shares of our
common stock and Preferred Stock and Warrants. In particular, new proposed legislation known as the &ldquo;Build Back Better Act&rdquo;
is under consideration within both houses of U.S. Congress. The proposed legislation includes, without limitation, new corporate minimum
income taxes. If enacted, most of the proposals would be effective for 2022 or later years. The proposed legislation remains subject
to change, and its impact on the Company and holders of our Subscription Rights, shares of our common stock and Preferred Stock, and
Warrants is uncertain.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Exercising
the Subscription Rights limits your ability to engage in certain hedging transactions that could provide you with financial benefits.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By
exercising the Subscription Rights, you are representing to us that you have not entered into any short sale or similar transaction with
respect to our common stock since the Record Date for the Rights Offering. In addition, the Subscription Rights provide that, upon exercise
of the Subscription Right, you agree not to enter into any short sale or similar transaction with respect to our common stock for so
long as you continue to hold Warrants issued in connection with the exercise of the Subscription Right. These requirements prevent you
from pursuing certain investment strategies that could provide you greater financial benefits than you might have realized if the Subscription
Rights did not contain these requirements.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
Subscription Rights are not transferable, and there is no market for the Subscription Rights.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
may not sell, transfer, assign or give away your Subscription Rights. Because the Subscription Rights are non-transferable, there is
no market or other means for you to directly realize any value associated with the Subscription Rights. You must exercise the Subscription
Rights to realize any potential value from your Subscription Rights.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>There
is no public market for the Preferred Stock in this offering.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
is no established public trading market for the Preferred Stock, and we do not expect a market to develop. In addition, we do not currently
intend to apply for listing of the Preferred Stock on any securities exchange or recognized trading system. Purchasers of the Preferred
Stock may be unable to resell their shares of Preferred Stock or sell them only at an unfavorable price for an extended period of time,
if at all.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Absence
of a public trading market for the Warrants may limit your ability to resell the Warrants.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
is no established trading market for the Warrants to be issued pursuant to this offering, and they will not be listed for trading on
Nasdaq or any other securities exchange or market, and the Warrants may not be widely distributed. Purchasers of the Warrants may be
unable to resell the Warrants or sell them only at an unfavorable price for an extended period of time, if at all.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
market price of our common stock may never exceed the exercise price of the Warrants issued in connection with this offering.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Warrants being issued in connection with this offering become exercisable upon issuance and will expire five years from the date of issuance.
The market price of our common stock may never exceed the exercise price of the Warrants prior to their date of expiration. Any Warrants
not exercised by their date of expiration will expire worthless and we will be under no further obligation to the Warrant holder.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
Warrants contain features that may reduce your economic benefit from owning them.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
so long as you continue to hold warrants, you will not be permitted to enter into any short sale or similar transaction with respect
to our common stock. This could prevent you from pursuing investment strategies that could provide you greater financial benefits from
owning the warrant.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>The
dealer-manager is not underwriting, nor acting as placement agent of, the Subscription Rights or the securities underlying the Subscription
Rights.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Maxim
Group LLC is acting as sole dealer-manager for the Rights Offering. As provided in the dealer-manager agreement, the dealer-manager will
provide marketing assistance in connection with this offering. The dealer-manager is not underwriting or placing any of the Subscription
Rights or the shares of our Preferred Stock or Warrants being issued in this offering and is not making any recommendation with respect
to such Subscription Rights (including with respect to the exercise or expiration of such Subscription Rights), shares or Warrants. The
dealer-manager will not be subject to any liability to us in rendering the services contemplated by the dealer-manager agreement except
for any act of bad faith, gross negligence or willful misconduct by the dealer-manager. The Rights Offering may not be successful despite
the services of the dealer-manager to us in this offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Since
the Warrants are executory contracts, they may have no value in a bankruptcy or reorganization proceeding.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the event a bankruptcy or reorganization proceeding is commenced by or against us, a bankruptcy court may hold that any unexercised Warrants
are executory contracts that are subject to rejection by us with the approval of the bankruptcy court. As a result, holders of the Warrants
may, even if we have sufficient funds, not be entitled to receive any consideration for their Warrants or may receive an amount less
than they would be entitled to if they had exercised their Warrants prior to the commencement of any such bankruptcy or reorganization
proceeding.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>We
may amend or modify the terms of the Rights Offering at any time prior to the expiration of the Rights Offering in our sole discretion.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
board of directors reserves the right to amend or modify the terms of the Rights Offering in its sole discretion. If we should make any
fundamental changes to the terms of the Rights Offering set forth in this prospectus, we will file a post-effective amendment to the
registration statement in which this prospectus is included, offer potential purchasers who have subscribed for rights the opportunity
to cancel such subscriptions and issue a refund of any money advanced by such stockholder and recirculate an updated prospectus after
the post-effective amendment is declared effective by the SEC. In addition, upon such event, we may extend the Expiration Date of the
Rights Offering to allow holders of rights ample time to make new investment decisions and for us to recirculate updated documentation.
Promptly following any such occurrence, we will issue a press release announcing any changes with respect to the Rights Offering and
the new expiration date. The terms of the Rights Offering cannot be modified or amended after the Expiration Date of the Rights Offering.
Although we do not presently intend to do so, we may choose to amend or modify the terms of the Rights Offering for any reason, including,
without limitation, in order to increase participation in the Rights Offering. Such amendments or modifications may include a change
in the subscription price, although no such change is presently contemplated.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Risks
Related to Our Business</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Investors
should carefully consider the risks and uncertainties and all other information contained or incorporated by reference in this prospectus,
including the risks and uncertainties discussed under &ldquo;<I>Risk Factors</I>&rdquo; in our most recent Annual Report on Form 10-K,
as may be amended from time to time, and in subsequent filings that are incorporated herein by reference. All these risk factors are
incorporated by reference herein in their entirety. These risks and uncertainties are not the only ones facing us. Our business, financial
condition or results of operations could be materially adversely affected by any of these risks. The trading price of our common stock
could decline due to any of these risks, and you may lose all or part of your investment. This prospectus and the incorporated documents
also contain forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated
in these forward-looking statements as a result of certain factors, including the risks mentioned in this prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_007"></A>FORWARD-LOOKING
STATEMENTS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus and the documents incorporated herein by reference contain forward-looking statements within the meaning of the Private Securities
Litigation Reform Act of 1995. These statements are based on our management&rsquo;s current beliefs, expectations and assumptions about
future events, conditions and results and on information currently available to us. Discussions containing these forward-looking statements
may be found, among other places, in the Sections entitled &ldquo;Business,&rdquo; &ldquo;Risk Factors&rdquo; and &ldquo;Management&rsquo;s
Discussion and Analysis of Financial Condition and Results of Operations&rdquo; incorporated by reference from our most recent Annual
Report on Form 10-K and our Quarterly Reports on Form 10-Q, as well as any amendments thereto, filed with the SEC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">All
statements, other than statements of historical fact, included or incorporated herein regarding our strategy, future operations, financial
position, future revenues, projected costs, plans, prospects and objectives are forward-looking statements. Words such as &ldquo;expect,&rdquo;
&ldquo;anticipate,&rdquo; &ldquo;intend,&rdquo; &ldquo;plan,&rdquo; &ldquo;believe,&rdquo; &ldquo;seek,&rdquo; &ldquo;estimate,&rdquo;
&ldquo;think,&rdquo; &ldquo;may,&rdquo; &ldquo;could,&rdquo; &ldquo;will,&rdquo; &ldquo;would,&rdquo; &ldquo;should,&rdquo; &ldquo;continue,&rdquo;
&ldquo;potential,&rdquo; &ldquo;likely,&rdquo; &ldquo;opportunity&rdquo; and similar expressions or variations of such words are intended
to identify forward-looking statements but are not the exclusive means of identifying forward-looking statements. Examples of our forward-looking
statements include:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to achieve sufficient market acceptance of any of our products or product candidates;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to enter into and maintain successful OEM arrangements with third parties;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    perception of the growth in the size of the potential market for our products and product candidates;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    estimate of the advantages of our silicon nitride technology platform;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to become a profitable biomaterial technology company;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    estimates regarding our needs for additional financing and our ability to obtain such additional financing on suitable terms;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to succeed in obtaining FDA clearance or approvals for our product candidates;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to receive CE Marks for our product candidates;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    timing, costs and other limitations involved in obtaining regulatory clearance or approval for any of our product candidates and
    product candidates and, thereafter, continued compliance with governmental regulation of our existing products and activities;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to protect our intellectual property and operate our business without infringing upon the intellectual property rights of
    others;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to obtain sufficient quantities and satisfactory quality of raw materials to meet our manufacturing needs;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    availability of adequate coverage reimbursement from third-party payers in the United States;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    estimates regarding anticipated operating losses, future product revenue, expenses, capital requirements and liquidity;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to maintain and continue to develop our sales and marketing infrastructure;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to enter into and maintain suitable arrangements with an adequate number of distributors;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    manufacturing capacity to meet future demand;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to develop effective and cost-efficient manufacturing processes for our products;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    reliance on third parties to supply us with raw materials and our non-silicon nitride products and instruments;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    safety and efficacy of products and product candidates;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    timing of and our ability to conduct clinical trials;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">potential
    changes to the healthcare delivery systems and payment methods in the United States or internationally;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
    potential requirement by regulatory agencies that we restructure our relationships with referring surgeons;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to develop and maintain relationships with surgeons, hospitals and marketers of our products; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    ability to attract and retain a qualified management team, engineering team, sales and marketing team, distribution team, design
    surgeons, surgeon advisors and other qualified personnel and advisors.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Because
forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified and some
of which are beyond our control, you should not rely on these forward-looking statements as predictions of future events. The events
and circumstances reflected in our forward-looking statements may not be achieved or occur and actual results could differ materially
from those projected in the forward- looking statements. Moreover, we operate in an evolving environment. New risk factors and uncertainties
may emerge from time to time, and it is not possible for management to predict all risk factors and uncertainties. Except as required
by applicable law, we do not plan to publicly update or revise any forward- looking statements contained herein, whether as a result
of any new information, future events, changed circumstances or otherwise.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus and the documents incorporated herein by reference also refer to estimates and other statistical data made by independent
parties and by us relating to market size and growth and other data about our industry. This data involves a number of assumptions and
limitations, and you are cautioned not to give undue weight to such estimates. In addition, projections, assumptions and estimates of
our future performance and the future performance of the markets in which we operate are necessarily subject to a high degree of uncertainty
and risk.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_008"></A>USE
OF PROCEEDS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Assuming
that all Units are subscribed for in the Rights Offering, we estimate that the net proceeds from the Rights Offering will be
approximately $ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; million, after deducting expenses relating
to this offering payable by us estimated at approximately $ million, including dealer-manager fees and expenses which include fees
payable to Ascendiant Capital Markets, LLC, for certain financial advisor services provided in connection with the Rights Offering,
and excluding any proceeds received upon exercise of any Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
intend to use the net proceeds from the exercise of Subscription Rights for general corporate purposes, which may include research and
development expenses, capital expenditures, working capital and general and administrative expenses, and potential acquisitions of or
investments in businesses, products and technologies that complement our business, although we have no present commitments or agreements
to make any such acquisitions or investments as of the date of this prospectus. We expect to use any proceeds we receive from the exercise
of Warrants for substantially the same purposes and in substantially the same manner. Pending these uses, we intend to invest the funds
in short-term, investment grade, interest-bearing securities. It is possible that, pending their use, we may invest the net proceeds
in a way that does not yield a favorable, or any, return for us.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
management will have broad discretion as to the allocation of the net proceeds from this offering and could use them for purposes other
than those contemplated at the time of commencement of this offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_009"></A>DILUTION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Purchasers
of Units in the Rights Offering will experience an immediate dilution of the net tangible book value per share of our common stock. Our
net tangible book value as of March 31, 2022 was approximately $14,421,000, or $0.584 per share of our common stock (based upon 24,713,574
shares of our common stock outstanding). Net tangible book value per share is equal to our total tangible assets less our total liabilities,
divided by the number of shares of our outstanding common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dilution
per share of common stock equals the difference between the amount paid by purchasers of Units in the Rights Offering (ascribing no value
to the Warrants contained in the Units) and the net tangible book value per share of our common stock immediately after the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
on the sale by us in this Rights Offering of a maximum of Units at the Subscription Price of $1,000 per Unit (assuming no exercise of
the Warrants), and after deducting estimated offering expenses and dealer-manager fees and expenses payable by us, our pro forma net
tangible book value as of March 31, 2022 would have been approximately $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; million, or $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share. This represents an immediate increase
in pro forma net tangible book value to existing stockholders of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share and an immediate dilution to purchasers in the Rights Offering
of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share. The following table illustrates this per-share dilution:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 78%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subscription
    Price</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 18%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,000.00</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Net
    tangible book value per share as of March 31, 2022</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0.584</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Increase
    in net tangible book value per share attributable to Rights Offering</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;
                                            &nbsp;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pro
    forma net tangible book value per share as of March 31, 2022, after giving effect to Rights Offering</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;
                                            &nbsp;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dilution
    in net tangible book value per share to purchasers in the Rights Offering</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;
                                            &nbsp;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT>&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
information above is as of March 31, 2022 and excludes:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 41.45pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.75in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,291,207
    shares of our common stock issuable upon the exercise of stock options, with a weighted-average exercise price of $2.38 per share,
    and vesting of restricted stock units;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">19,306
    shares of our common stock issuable upon the conversion of outstanding shares of Series B Preferred Stock;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">34,428
    </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">shares of our common stock issuable upon the
    conversion of outstanding shares of Series C Preferred Stock;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,117,575
    </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">shares of our common stock issuable upon the
    exercise of outstanding warrants, with a weighted-average exercise price of $6.43 per share;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">626,799
    other shares of our common stock reserved for future issuance under our 2020 Equity Incentive Plan.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_010"></A>MARKET
PRICE AND DIVIDEND POLICY</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
shares of common stock are currently quoted on The Nasdaq Capital Market under the symbol &ldquo;SINT&rdquo;. On July 7, 2022,
the last reported sales price of our common stock on Nasdaq was $0.44.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Holders
of Record</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
of July 5, 2022, we had approximately 157 holders of record of our common stock. Because many of our shares of common stock
are held by brokers and other institutions on behalf of stockholders, this number is not indicative of the total number of stockholders
represented by these stockholders of record.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Dividends</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have not declared or paid dividends to stockholders since inception and do not plan to pay cash dividends in the foreseeable future.
We currently intend to retain earnings, if any, to finance our growth.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Issuer
Purchases of Equity Securities</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">None</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_011"></A>THE
RIGHTS OFFERING</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>The
Subscription Rights</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are distributing to the record holders of our common stock, Series B Preferred Stock, Series C Preferred Stock and Participating Warrants,
at no charge, non-transferable Subscription Rights to purchase one Unit at a subscription price of $1,000 per Unit. Each Basic Subscription
Right will entitle you to purchase one share of our preferred stock and &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Warrants. Each Warrant will be exercisable for one share of our
common stock at an exercise price of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share from the date of issuance through the expiration five years from the date of issuance.
Each record holder of our common stock, Series B Preferred Stock, Series C Preferred Stock, and holders of Participating Warrants, will
receive one Subscription Right for every share of our common stock (including each share of common stock issuable upon conversion of
Series B Preferred Stock, Series C Preferred Stock, and exercise of Participating Warrants) owned by such record holder as of the Record
Date. Each Subscription Right entitles the record holder to a Basic Subscription Right and an Over-Subscription Privilege.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Basic
Subscription Rights</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Your
Basic Subscription Rights will entitle you to purchase Units, each comprised of one share of our Preferred Stock and &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Warrants. For example,
if you owned 100 shares of common stock as of the Record Date, you will receive 100 Subscription Rights and will have the right to purchase
100 shares of our Preferred Stock and Warrants to purchase &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;shares of our common stock for $1,000 per Unit, or a total payment of $100,000.
You may exercise all or a portion of your Basic Subscription Rights, or you may choose not to exercise any of your Basic Subscription
Rights. If you do not exercise your Basic Subscription Rights in full, you will not be entitled to exercise your Over-Subscription Privilege.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Additionally,
sufficient Units may not be available to honor your Basic Subscription Right in full. While we are distributing one subscription right
for every share of common stock owned or deemed owned on the record date, we are only seeking to raise $10 million dollars in gross proceeds
in this Rights Offering. As a result, based on (1) 24,719,574 shares of common stock outstanding and (2) 1,171,296 shares
of common stock deemed to be owned and outstanding as of July 7, 2022, by holders of our Series B Preferred Stock, Series C Preferred
Stock and Participating Warrants, we would grant subscription rights to acquire 25,890,870 Units but will only accept subscriptions
for 10,000 Units.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
exercises of Basic Subscription Rights exceed the number of Units available in the Rights Offering, we will allocate the available Units
pro-rata among the record holders exercising the Basic Subscription Rights in proportion to the number of shares of our common stock
each of those record holders owned or were deemed to own on the record date, relative to the number of shares owned or deemed owned on
the record date by all record holders exercising the basic subscription right. If this pro-rata allocation results in any record holders
receiving a greater number of Units than the record holder subscribed for pursuant to the exercise of the basic subscription rights,
then such record holder will be allocated only that number of Units for which the record holder subscribed, and the remaining Units will
be allocated among all other record holders exercising their Basic Subscription Rights on the same pro rata basis described above. The
proration process will be repeated until all shares have been allocated.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
for any reason the number of Units allocated to you is less than you have subscribed for, then the excess funds held by the Subscription
Agent on your behalf will be returned to you, without interest, as soon as practicable after the Rights Offering has expired and all
prorating calculations and reductions contemplated by the terms of the Rights Offering have been effected, and we will have no further
obligations to you.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Over-Subscription
Privilege</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you exercise your Basic Subscription Rights in full, you may also choose to exercise your Over-Subscription Privilege. Subject to proration
and the limitations described in this prospectus, we will seek to honor the Over-Subscription Requests in full. If Over-Subscription
Requests exceed the number of Units available, however, we will allocate the available Units pro rata among the common and Series B and
Series C stockholders and eligible warrant holders as of the Record Date exercising the Over-Subscription Privilege in proportion to
the number of shares of our common stock (including each share of common stock issuable upon conversion of Series B Preferred Stock,
Series C Preferred Stock, and exercise of Participating Warrants) each of those stockholders and/or warrant holders owned on the Record
Date, relative to the number of shares owned on the Record Date by all stockholders and warrant holders as of the Record Date exercising
the Over-Subscription Privilege. If this pro rata allocation results in any stockholder or warrant holder receiving a greater number
of Units than the record holder subscribed for pursuant to the exercise of the Over-Subscription Privilege, then such record holder will
be allocated only that number of Units for which the record holder oversubscribed, and the remaining Units will be allocated among all
other stockholders or warrant holders exercising the Over-Subscription Privilege on the same pro rata basis described above. The proration
process will be repeated until all Units have been allocated. American Stock Transfer &amp; Trust Company, LLC, the Subscription Agent
for the Rights Offering, will determine the over-subscription allocation based on the formula described above.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
the extent the aggregate subscription payment of the actual number of unsubscribed Units available to you pursuant to the Over-Subscription
Privilege is less than the amount you actually paid in connection with the exercise of the Over-Subscription Privilege, you will be allocated
only the number of unsubscribed Units available to you, and any excess subscription payments will be returned to you, without interest
or deduction, with 10 business days after expiration of the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
can provide no assurances that you will be entitled to purchase the number of Units issuable upon the exercise of your Over-Subscription
Privilege in full at the expiration of the Rights Offering. We will not be able to satisfy any requests for Units pursuant to the Over-Subscription
Privilege if all of our stockholders exercise their Basic Subscription Rights in full, and we will only honor an Over-Subscription Privilege
to the extent sufficient Units are available following the exercise of Basic Subscription Rights.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Limitation
on the Purchase of Units</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
may only purchase the number of Units purchasable upon exercise of the number of Basic Subscription Rights distributed to you in the
Rights Offering, plus the Over-Subscription Privilege, if any. Accordingly, the number of Units that you may purchase in the Rights Offering
is limited by the number of shares of our common stock (including each share of common stock issuable upon conversion of Series B Preferred
Stock, Series C Preferred Stock, and exercise of Participating Warrants) you held on the Record Date and by the extent to which other
stockholders or warrant holders exercise their Basic Subscription Rights and Over-Subscription Privileges, all of which we cannot determine
prior to completion of the Rights Offering. However, due to stock exchange restrictions, we will not issue Units in the Rights Offering
to the extent that a holder would beneficially own, together with any other person with whom such holder&rsquo;s securities may be aggregated
under applicable law, more than 19.99% of our outstanding shares of common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Subscription
Price</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Subscription Price is $1,000 per Unit. The Subscription Price does not necessarily bear any relationship to our past or expected future
results of operations, cash flows, current financial condition, or any other established criteria for value. No change will be made to
the Subscription Price by reason of changes in the trading price of our common stock or other factor prior to the expiration of this
Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Determination
of Subscription Price</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the determining the Subscription Price, the board of directors considered a variety of factors including those listed below:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    need to raise capital in the near term to continue our operations;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    current and historical trading prices of our common stock;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
    price that would increase the likelihood of participation in the Rights Offering;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    cost of capital from other sources;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    value of the common stock being issued as a component of the Unit;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    value of the Warrant being issued as a component of the Unit; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">comparable
    precedent transactions, including the percentage of shares offered, the terms of the subscription rights being offered, the subscription
    price and the discount that the subscription price represents to the immediately prevailing closing prices for these offerings.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Subscription Price does not necessarily bear any relationship to any established criteria for value. No valuation consultant or investment
banker has opined upon the fairness or adequacy of the Subscription Price. You should not consider the Subscription Price as an indication
of actual value of our company or our common stock. The market price of our common stock may decline during or after the Rights Offering.
We cannot predict the price at which our shares of common stock will trade after the Rights Offering. You should obtain a current price
quote for our common stock and perform an independent assessment of our Warrants before exercising your Subscription Rights and make
your own assessment of our business and financial condition, our prospects for the future, and the terms of this Rights Offering. Once
made, all exercises of Subscription Rights are irrevocable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>No
Short-Sales</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By
exercising the Subscription Rights, you are representing to us that you have not entered into any short sale or similar transaction with
respect to our common stock since the Record Date for the Rights Offering. In addition, the Subscription Rights provide that, upon exercise
of the Subscription Right, you represent that you have not since the Record Date and, for so long as you continue to hold Preferred Stock
or Warrants issued in connection with the exercise of the Subscription Right, agree to not to enter into any short sale or similar transaction
with respect to our common stock. These requirements prevent you from pursuing certain investment strategies that could provide you greater
financial benefits than you might have realized if the Subscription Rights did not contain these requirements.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>No
Recombination</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Preferred Stock and Warrants comprising the Units will separate upon the exercise of the Subscription Rights, and the Units will not
trade as a separate security. Holders may not recombine shares of Preferred Stock and Warrants to receive a Unit.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Non-Transferability
of Subscription Rights</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Subscription Rights are non-transferable (other than by operation of law) and, therefore, you may not sell, transfer, assign or give
away your Subscription Rights to anyone. The Subscription Rights will not be listed for trading on any stock exchange or market.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Expiration
Date; Extension</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
subscription period, during which you may exercise your Subscription Rights, expires at 5:00 p.m., Eastern Time, on&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2022, which is
the expiration of the Rights Offering. If you do not exercise your Subscription Rights before that time, your Subscription Rights will
expire and will no longer be exercisable. We will not be required to issue shares to you if the Subscription Agent receives your Rights
Certificate or your subscription payment after that time. We have the option to extend the Rights Offering in our sole discretion for
any reason up to an additional 45 days, although we do not presently intend to do so. We may extend the Rights Offering by giving oral
or written notice to the Subscription Agent before the Rights Offering expires. If we elect to extend the Rights Offering, we will issue
a press release announcing the extension no later than 9:00 a.m., Eastern Time, on the next business day after the most recently announced
expiration date of the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you hold your shares of common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating Warrants in the name of a
broker, dealer, bank or other nominee, the nominee will exercise the Subscription Rights on your behalf in accordance with your instructions.
Please note that the nominee may establish a deadline that may be before 5:00 p.m., Eastern Time, on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022, which is the expiration
date that we have established for the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Termination</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may terminate the Rights Offering at any time and for any reason prior to the expiration of the Rights Offering. If we terminate the
Rights Offering, we will issue a press release notifying stockholders and the public of the termination no later than 9:00 a.m., Eastern
Time, on the next business day after the most recently announced expiration date of the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Return
of Funds upon Completion or Termination</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Subscription Agent will hold funds received in payment for shares in a segregated account pending completion of the Rights Offering.
The Subscription Agent will hold this money until the Rights Offering is completed or is terminated. To the extent you properly exercise
your Over-Subscription Privilege for an amount of Units that exceeds the number of unsubscribed Units available to you, any excess subscription
payments will be returned to you within 10 business days after the expiration of the Rights Offering, without interest or deduction.
If the Rights Offering is terminated for any reason, all subscription payments received by the Subscription Agent will be returned within
10 business days, without interest or deduction.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Shares
of Our Capital Stock and Warrants Outstanding After the Rights Offering</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Assuming
no other transactions by us involving our capital stock prior to the expiration of the Rights Offering, and if the Rights Offering is
fully subscribed, upon consummation of the Rights Offering we will have 24,719,574 shares of common stock issued and outstanding,
26 shares of Series B Preferred Stock issued and outstanding, 51 shares of Series C Preferred Stock Outstanding, 10,000 shares of Preferred
Stock issued and outstanding, and &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Warrants to purchase
additional shares of our common stock issued and outstanding. The exact number of shares of Preferred Stock and Warrants that we will issue in this offering will depend on the number of Units
that are subscribed for in the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Methods
for Exercising Subscription Rights</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
exercise of Subscription Rights is irrevocable and may not be cancelled or modified. You may exercise your Subscription Rights as follows:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Subscription
by Record Holders</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If,
as of the Record Date, you are a holder of record of common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating
Warrants, the number of Units you may purchase pursuant to your Subscription Rights is indicated on the enclosed Rights Certificate.
You may exercise your Subscription Rights by properly completing and executing the Rights Certificate and forwarding it, together with
your full payment, to the Subscription Agent at the address given below under &ldquo;Subscription Agent,&rdquo; to be received before
5:00 p.m., Eastern Time, on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2022.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Subscription
by Beneficial Owners</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
as of the Record Date you are a beneficial owner of shares of our common stock, Series B Preferred Stock, Series C Preferred Stock, or
Participating Warrants that are registered in the name of a broker, dealer, bank or other nominee, you will not receive a Rights Certificate.
Instead, we will issue one Subscription Right to such nominee record holder for all shares of our common stock, Series B Preferred Stock,
Series C Preferred Stock, or Participating Warrants held by such nominee at the Record Date. If you are not contacted by your nominee,
you should promptly contact your nominee in order to subscribe for shares in the Rights Offering and follow the instructions provided
by your nominee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
properly exercise your Over-Subscription Privilege, you must deliver the subscription payment related to your Over-Subscription Privilege
before the Rights Offering expires. Because we will not know the total number of unsubscribed Units before the Rights Offering expires,
if you wish to maximize the number of shares you purchase pursuant to your Over-Subscription Privilege, you will need to deliver payment
in an amount equal to the aggregate subscription payment for the maximum number of Units that you wish to purchase.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Payment
Method</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Payments
must be made in full in U.S. currency by personal check, certified check or bank draft, or by wire transfer, and payable to &ldquo;American
Stock Transfer and Trust Company, LLC, as Subscription Agent for SINTX Technologies, Inc.&rdquo; You must timely pay the full subscription
payment, including payment for the Over-Subscription Privilege, for the full number of shares of our common stock you wish to acquire
pursuant to the exercise of Subscription Rights by delivering a:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">certified
    or personal check drawn against a U.S. bank payable to &ldquo;American Stock Transfer and Trust Company, LLC, as Subscription Agent
    for SINTX Technologies, Inc.&rdquo;;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 24px; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 24px; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">U.S.
    Postal money order payable to &ldquo;American Stock Transfer and Trust Company, LLC, as Subscription Agent for SINTX Technologies,
    Inc.&rdquo;; or</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">wire
    transfer of immediately available funds directly to the account maintained by American Stock Transfer and Trust Company, LLC, as
    Subscription Agent, for purposes of accepting subscriptions in this Rights Offering at:</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you elect to exercise your Subscription Rights, you should consider using a wire transfer or certified check drawn on a U.S. bank to
ensure that the Subscription Agent receives your funds before the Rights Offering expires. If you send a personal check, payment will
not be deemed to have been received by the Subscription Agent until the check has cleared. The clearinghouse may require five or more
business days to clear a personal check. Accordingly, holders who wish to pay the Subscription Price by means of a personal check should
make payment sufficiently in advance of the expiration of the Rights Offering to ensure that the payment is received and clears by that
date. If you send a certified check, payment will be deemed to have been received by the Subscription Agent immediately upon receipt
of such instrument.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
should read the instruction letter accompanying the Rights Certificate carefully and strictly follow it. <B>DO NOT SEND RIGHTS CERTIFICATES
OR PAYMENTS DIRECTLY TO US</B>. We will not consider your subscription received until the Subscription Agent has received delivery of
a properly completed and duly executed Rights Certificate and payment of the full subscription payment.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
method of delivery of Rights Certificates and payment of the subscription payment to the Subscription Agent will be at the risk of the
holders of Subscription Rights. If sent by mail, we recommend that you send those certificates and payments by registered mail, properly
insured, with return receipt requested, or by overnight courier, and that you allow a sufficient number of days to ensure delivery to
the Subscription Agent and clearance of payment before the Rights Offering expires.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Missing
or Incomplete Subscription Forms or Payment</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you fail to complete and sign the Rights Certificate or otherwise fail to follow the subscription procedures that apply to the exercise
of your Subscription Rights before the Rights Offering expires, the Subscription Agent will reject your subscription or accept it to
the extent of the payment received. Neither we nor our Subscription Agent undertakes any responsibility or action to contact you concerning
an incomplete or incorrect subscription form, nor are we under any obligation to correct such forms. We have the sole discretion to determine
whether a subscription exercise properly complies with the subscription procedures.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you send a payment that is insufficient to purchase the number of shares you requested, or if the number of shares you requested is not
specified in the forms, the payment received will be applied to exercise your Subscription Rights to the fullest extent possible based
on the amount of the payment received. Any excess subscription payments received by the Subscription Agent will be returned, without
interest or deduction, within 10 business days following the expiration of the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Issuance
of Preferred Stock and Warrants</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
shares of Preferred Stock and Warrants that are purchased in the Rights Offering as part of the Units will be issued in book-entry, or
uncertificated, form meaning that you will receive a DRS account statement from our transfer agent reflecting ownership of these securities
if you are a holder of record. If you hold your shares of common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating
Warrants in the name of a bank, broker, dealer, or other nominee, DTC will credit your account with your nominee with the securities
you purchased in the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Subscription
and Information Agent</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Subscription Agent for the Rights Offering is American Stock Transfer &amp; Trust Company, LLC and the Information Agent is D.F. King
&amp; Co., Inc. The address to which Rights Certificates and payments should be mailed or delivered by overnight courier is provided
below. If sent by mail, we recommend that you send documents and payments by registered mail, properly insured, with return receipt requested,
and that you allow a sufficient number of days to ensure delivery to the Subscription Agent and clearance or payment before the Rights
Offering expires. Do not send or deliver these materials to us.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>If
delivering by mail, hand or overnight courier:</U></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">American
Stock Transfer &amp; Trust Company, LLC</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Operations
Center</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Attn:
Reorganization Department</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6201
15<SUP>th</SUP> Avenue</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Brooklyn,
New York 11219</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you deliver the Rights Certificates in a manner different than that described in this prospectus, we may not honor the exercise of your
Subscription Rights.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
should direct any questions or requests for assistance concerning the method of subscribing for the shares of our common stock or for
additional copies of this prospectus to the Information Agent, D.F. King &amp; Co., Inc., toll free at (866) 620-2536, or by mail at
D.F. King &amp; Co., Inc., 48 Wall Street, 22nd Floor, New York, NY 10005.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Warrant
Agent</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
warrant agent for the Warrants is American Stock Transfer &amp; Trust Company, LLC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>No
Fractional Shares</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will not issue fractional shares of common stock in the Rights Offering. We will only distribute Subscription Rights to acquire whole
Units, rounded down to the nearest whole number of underlying common shares giving rise to such Subscription Rights. Any excess subscription
payments received by the Subscription Agent will be returned within 10 business days after expiration of the Rights Offering, without
interest or deduction. Similarly, no fractional shares of common stock will be issued in connection with the conversion of the Preferred
Stock or the exercise of a Warrant. Instead, for any such fractional share that would otherwise have been issuable upon conversion of
shares of Preferred Stock, we may, at our election, pay a cash payment equal to such fraction multiplied by the conversion price or round
up to the next whole share, and for any such fractional share that would have otherwise been issued upon exercise of Warrants, we will
round up such fraction to the next whole share.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Notice
to Brokers and Nominees</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you are a broker, dealer, bank or other nominee holder that holds shares of our common stock, Series B Preferred Stock, Series C Preferred
Stock, or Participating Warrants for the account of others on the Record Date, you should notify the beneficial owners for whom you are
the nominee of the Rights Offering as soon as possible to learn their intentions with respect to exercising their Subscription Rights.
If a beneficial owner of our common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants so instructs,
you should complete the Rights Certificate and submit it to the Subscription Agent with the proper subscription payment by the expiration
date. You may exercise the number of Subscription Rights to which all beneficial owners in the aggregate otherwise would have been entitled
had they been direct holders of our common stock on the Record Date, provided that you, as a nominee record holder, make a proper showing
to the Subscription Agent by submitting the form entitled &ldquo;Nominee Holder Certification,&rdquo; which is provided with your Rights
Offering materials. If you did not receive this form, you should contact our Subscription Agent to request a copy.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Validity
of Subscriptions</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will resolve all questions regarding the validity and form of the exercise of your Subscription Rights, including time of receipt and
eligibility to participate in the Rights Offering. Our determination will be final and binding. Once made, subscriptions are irrevocable;
we will not accept any alternative, conditional, or contingent subscriptions. We reserve the absolute right to reject any subscriptions
not properly submitted or the acceptance of which would be unlawful. You must resolve any irregularities in connection with your subscriptions
before the expiration date of the Rights Offering, unless we waive them in our sole discretion. Neither we nor the Subscription Agent
is under any duty to notify you or your representative of defects in your subscriptions. A subscription will be considered accepted,
subject to our right to withdraw or terminate the Rights Offering, only when the Subscription Agent receives a properly completed and
duly executed Rights Certificate and any other required documents and the full subscription payment including final clearance of any
personal check. Our interpretations of the terms and conditions of the Rights Offering will be final and binding.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Stockholder
Rights</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
will have no rights as a holder of the shares of our common stock issuable upon conversion of the Preferred Stock issued in the Rights
Offering until such Preferred Stock is converted into common stock and issued in book-entry form or your account at your broker, dealer,
bank or other nominee is credited with the shares of our common stock. Holders of Warrants issued in connection with the Rights Offering
will not have rights as holders of our common stock until such Warrants are exercised and the shares of common stock underlying the Warrants
are issued to the holder.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Foreign
Stockholders</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will not mail this prospectus or Rights Certificates to stockholders with addresses that are outside the United States or that have
an army post office or foreign post office address. The Subscription Agent will hold these Rights Certificates for their account. To
exercise Subscription Rights, our foreign stockholders must notify the Subscription Agent prior to 5:00 p.m., Eastern Time, on &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;,
2022, the third business day prior to the expiration date, of your exercise of Subscription Rights and provide evidence satisfactory
to us, such as a legal opinion from local counsel, that the exercise of such Subscription Rights does not violate the laws of the
jurisdiction in which such stockholder resides and payment by a U.S. bank in U.S. dollars before the expiration of the offer. If no
notice is received by such time or the evidence presented is not satisfactory to us, the Subscription Rights represented thereby
will expire.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>No
Revocation or Change</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Once
you submit the Rights Certificate or have instructed your nominee of your subscription request, you are not allowed to revoke or change
the exercise or request a refund of monies paid. All exercises of Subscription Rights are irrevocable, even if you learn information
about us that you consider to be unfavorable. You should not exercise your Subscription Rights unless you are certain that you wish to
purchase shares at the Subscription Price. If we should make any fundamental changes to the terms set forth in this prospectus, we will
(i) file a post-effective amendment to the registration statement of which this prospectus forms a part, (ii) offer potential purchasers
who have subscribed for rights the opportunity to cancel such subscriptions, and (iii) issue a refund of any money advanced by such stockholder
or eligible warrant holder and recirculate an updated prospectus after the post-effective amendment is declared effective with the SEC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>U.S.
Federal Income Tax Treatment of Rights Distribution</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
U.S. federal income tax purposes, we do not believe holders of shares of our common stock, Series B Preferred Stock, Series C Preferred
Stock or Participating Warrants should recognize income or loss upon receipt or exercise of a Subscription Right, but the receipt and
exercise of the Subscription Rights is unclear in certain respects. See &ldquo;Material U.S. Federal Income Tax Consequences.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B></B></FONT></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>No
Recommendation to Rights Holders</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
board of directors is not making a recommendation regarding your exercise of the Subscription Rights. Stockholders who exercise Subscription
Rights risk investment loss on money invested. We cannot predict the price at which our shares of common stock will trade after the Rights
Offering. You should make your investment decision based on your assessment of our business and financial condition, our prospects for
the future and the terms of this Rights Offering. Please see &ldquo;Risk Factors&rdquo; for a discussion of some of the risks involved
in investing in our common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Fees
and Expenses</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will pay all fees charged by the Subscription Agent and the Information Agent, and by the dealer-manager. You are responsible for paying
any other commissions, fees, taxes or other expenses incurred in connection with the exercise of your Subscription Rights.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Listing</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Subscription Rights may not be sold, transferred, assigned or given away to anyone, and will not be listed for trading on any stock exchange
or market. There is no public trading market for the Preferred Stock or the Warrants and they will not be listed for trading on Nasdaq
or any other securities exchange or market. The shares of our common stock issuable upon the conversion of the Preferred Stock and the
exercise of the Warrants to be issued in the Rights Offering are traded on Nasdaq under the symbol &ldquo;SINT.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Important</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Do
not send Rights Certificates directly to us. You are responsible for choosing the payment and delivery method for your Rights Certificate
and you bear the risks associated with such delivery. If you choose to deliver your Rights Certificate and payment by mail, we recommend
that you use registered mail, properly insured, with return receipt requested. We also recommend that you allow a sufficient number of
days to ensure delivery to the Subscription Agent and clearance of payment prior to the expiration time.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Distribution
Arrangements</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Maxim
Group LLC will act as dealer-manager for the Rights Offering. The dealer-manager will provide marketing assistance and advice to us in
connection with the Rights Offering and will use its best efforts to solicit the exercise of Subscription Rights and participation in
the Over-Subscription Privilege. The dealer-manager is not underwriting or placing any of the Subscription Rights or the shares of our
Preferred Stock or Warrants to be issued in the Rights Offering and does not make any recommendation with respect to such Subscription
Rights (including with respect to the exercise or expiration of such Subscription Rights), shares or Warrants. We have agreed to pay
the dealer-manager certain fees and to reimburse the dealer-manager for certain out-of-pocket expenses incurred in connection with this
offering. See &ldquo;Plan of Distribution.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Other
Matters</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are not making the Rights Offering in any state or other jurisdiction in which it is unlawful to do so, nor are we distributing or accepting
any offers to purchase any units from subscription rights holders who are residents of those states or other jurisdictions or who are
otherwise prohibited by federal or state laws or regulations from accepting or exercising the subscription rights. We may delay the commencement
of the Rights Offering in those states or other jurisdictions, or change the terms of the Rights Offering, in whole or in part, in order
to comply with the securities laws or other legal requirements of those states or other jurisdictions. Subject to state securities laws
and regulations, we also have the discretion to delay allocation and distribution of any shares you may elect to purchase by exercise
of your subscription privileges in order to comply with state securities laws. We may decline to make modifications to the terms of the
Rights Offering requested by those states or other jurisdictions, in which case, if you are a resident in those states or jurisdictions
or if you are otherwise prohibited by federal or state laws or regulations from accepting or exercising the subscription rights, you
will not be eligible to participate in the Rights Offering. However, we are not currently aware of any states or jurisdictions that would
preclude participation in the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_012"></A>MATERIAL
U.S. FEDERAL INCOME TAX CONSEQUENCES</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following discussion describes the material U.S. federal income tax consequences of the receipt and exercise (or expiration) of the Subscription
Rights acquired through the Rights Offering, the ownership and disposition of shares of our Preferred Stock and Warrants received upon
exercise of the Subscription Rights and the ownership and disposition of the shares of common stock received upon the conversion of our
Preferred Stock or the exercise of the Warrants. This discussion does not purport to be a complete analysis of all potential tax consequences.
The effects of other U.S. federal tax laws, such as estate and gift tax laws, alternative minimum tax laws, net investment tax laws,
and any applicable state, local or non-U.S. tax laws are not discussed. This discussion is based on the U.S. Internal Revenue Code of
1986, as amended, or the Code, U.S. Treasury Regulations promulgated thereunder, judicial decisions, and published rulings and administrative
pronouncements of the U.S. Internal Revenue Service, or the IRS, in each case in effect as of the date hereof. These authorities may
change or be subject to differing interpretations. Any such change or differing interpretation may be applied retroactively in a manner
that could adversely affect a holder of the Subscription Rights, shares of our Preferred Stock, Warrants or shares of our common stock.
This summary does not discuss the potential effects, whether adverse or beneficial, of any proposed legislation that, if enacted, could
be applied on a retroactive or prospective basis. We have not sought and will not seek any rulings from the IRS regarding the matters
discussed below. There can be no assurance the IRS or a court will not take a contrary position to that discussed below regarding the
tax consequences of the receipt of Subscription Rights through the Rights Offering by persons holding shares of our common stock and
warrants entitled to receive Subscription Rights pursuant to this Rights Offering (which we refer to as Participating Warrants), the
exercise (or expiration) of the Subscription Rights, the acquisition, ownership and disposition of shares of our Preferred Stock, and
the acquisition, ownership and disposition (or expiration) of Warrants, each acquired upon exercise of the Subscription Rights, and the
acquisition, ownership and disposition of shares of our common stock acquired upon conversion of our Preferred Stock or exercise of the
Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
discussion is limited to the Subscription Rights acquired through the Rights Offering, shares of our Preferred Stock and Warrants acquired
upon exercise of Subscription Rights and shares of our common stock acquired upon conversion of our Preferred Stock or exercise of the
Warrants, in each case, that are held as a &ldquo;capital asset&rdquo; within the meaning of Section 1221 of the Code (generally, property
held for investment). This discussion does not address all U.S. federal income tax consequences relevant to a holder&rsquo;s particular
circumstances, including the impact of the alternative minimum tax or the unearned income Medicare contribution tax. In addition, it
does not address consequences relevant to holders subject to particular rules, including, without limitation:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">U.S.
    expatriates and former citizens or long-term residents of the United States;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">U.S.
    holders (as defined below) that are subject to taxing jurisdictions other than, or in addition to, the United States or otherwise
    hold our common stock, the Subscription Rights, shares of our Preferred Stock, Warrants or shares of our common stock in connection
    with a trade or business, permanent establishment, or fixed base outside the United States;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">corporations
    organized outside the United States, any state thereof, or the District of Columbia that are nonetheless treated as U.S. persons
    for U.S. federal income tax purposes;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">persons
    holding our common stock, the Subscription Rights, shares of our Preferred Stock, Warrants or shares of our common stock as part
    of a hedge, straddle or other risk reduction strategy or as part of a conversion transaction or other integrated investment;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">banks,
    insurance companies, underwriters, and other financial institutions;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">brokers,
    dealers or traders in securities or currencies or traders that elect to mark-to-market their securities;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;controlled
    foreign corporations,&rdquo; &ldquo;passive foreign investment companies,&rdquo; and corporations that accumulate earnings to avoid
    U.S. federal income tax;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">partnerships
    or other entities or arrangements treated as partnerships or other pass-through entities for U.S. federal income tax purposes (and
    investors therein) and S corporations (and shareholders thereof);</FONT></TD></TR>
</TABLE>

<P STYLE="margin: 0">&nbsp;</P>

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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">real
    estate investment trusts, regulated investment companies, grantor trusts, tax-exempt organizations or governmental organizations;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">persons
    deemed to sell the Subscription Rights, shares of Preferred Stock, or Warrants or shares of our common stock under the constructive
    sale provisions of the Code;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">persons
    subject to special tax accounting rules as a result of any item of gross income being taken into account in an applicable financial
    statement (as defined in the Code);</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">persons
    for whom our stock constitutes &ldquo;qualified small business stock&rdquo; within the meaning of Section 1202 of the Code;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">persons
    who received, hold or will receive shares of our common stock, Participating Warrants, the Subscription Rights, shares of our Preferred
    Stock or Warrants pursuant to the exercise of any employee stock option or otherwise as compensation and persons who hold restricted
    common stock;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">tax-qualified
    retirement plans, individual retirement accounts, or other tax-deferred accounts;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">persons
    subject to the alternative minimum tax; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">U.S.
    holders that have a functional currency other than the U.S. dollar.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
an entity treated as a partnership for U.S. federal income tax purposes holds shares of our common stock, the Subscription Rights, shares
of our Preferred Stock and Warrants acquired upon exercise of Subscription Rights or shares of our common stock acquired upon conversion
of our Preferred Stock or exercise of the Warrants, as the case may be, the tax treatment of a partner in the partnership will depend
on the status of the partner, the activities of the partnership and certain determinations made at the partner level. Accordingly, partnerships
and the partners in such partnerships should consult their own tax advisors regarding the U.S. federal income tax consequences to them.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>THIS
DISCUSSION IS FOR INFORMATION PURPOSES ONLY AND IS NOT TAX ADVICE. INVESTORS SHOULD CONSULT THEIR OWN TAX ADVISORS WITH RESPECT TO THE
APPLICATION OF THE U.S. FEDERAL INCOME TAX LAWS TO THEIR PARTICULAR SITUATIONS AS WELL AS ANY TAX CONSEQUENCES OF THE RECEIPT, OWNERSHIP
AND EXERCISE OF SUBSCRIPTION RIGHTS, THE ACQUISITION, OWNERSHIP, AND DISPOSITION OF SHARES OF OUR PREFERRED STOCK AND WARRANTS ACQUIRED
UPON EXERCISE OF SUBSCRIPTION RIGHTS, AND SHARES OF OUR COMMON STOCK ACQUIRED UPON CONVERSION OF PREFERRED STOCK OR EXERCISE OF WARRANTS
ARISING UNDER THE U.S. FEDERAL ESTATE OR GIFT TAX LAWS OR UNDER THE LAWS OF ANY STATE, LOCAL OR NON-U.S. TAXING JURISDICTION OR UNDER
ANY APPLICABLE INCOME TAX TREATY.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Tax
Considerations Applicable to U.S. Holders</U></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Definition
of a U.S. Holder</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
purposes of this discussion, a &ldquo;U.S. holder&rdquo; is any beneficial owner of shares of our common stock, our Subscription Rights,
shares of our Preferred Stock and Warrants acquired upon exercise of Subscription Rights or shares of our common stock acquired upon
conversion of our Preferred Stock or exercise of Warrants, as the case may be, that, for U.S. federal income tax purposes, is:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">an
    individual who is a citizen or resident of the United States;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
    corporation (or other entity treated as a corporation for U.S. federal income tax purposes) created or organized under the laws of
    the United States, any state thereof, or the District of Columbia;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">an
    estate, the income of which is subject to U.S. federal income tax regardless of its source; or</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
    trust that (1) is subject to the primary supervision of a U.S. court and the control of one or more United States persons (within
    the meaning of Section 7701(a)(30) of the Code), or (2) has made a valid election under applicable U.S. Treasury Regulations to continue
    to be treated as a United States person.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Receipt
of Subscription Rights</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Although
the authorities governing transactions such as this Rights Offering are complex and do not speak directly to the consequences of certain
aspects of this Rights Offering, including the inclusion of the right to purchase Warrants in the Subscription Rights (rather than the
right to purchase only shares of our Preferred Stock), the distribution of Subscription Rights to holders of Participating Warrants and
the effects of the Over-Subscription Privilege, we do not believe a U.S. holder&rsquo;s receipt of Subscription Rights pursuant to the
Rights Offering should be treated as a taxable distribution with respect to its existing shares of common stock, Series B Preferred Stock,
Series C Preferred Stock or Participating Warrants, as applicable, for U.S. federal income tax purposes. Section 305(a) of the Code generally
provides that the receipt by a stockholder, or a holder of rights to acquire stock, of a right to acquire stock or warrants is not included
in the taxable income of the stockholder; however, the general non-recognition rule in Section 305(a) of the Code is subject to exceptions
described in Section 305(b) of the Code, which include &ldquo;disproportionate distributions.&rdquo; A disproportionate distribution
is generally a distribution or a series of distributions, including deemed distributions, that has the effect of the receipt of cash
or other property by some stockholders (including holders of rights to acquire stock and holders of debt instruments convertible into
stock) and an increase in the proportionate interest of other stockholders (including holders of rights to acquire stock and holders
of debt instruments convertible into stock) in a corporation&rsquo;s assets or earnings and profits. <B>During the last 36 months, we
have not made any distributions of cash or property (other than stock or rights to acquire stock) with respect to: (i) our common stock
or (ii) options or warrants to acquire our common stock. Currently we do not intend to make any future distributions of cash or property
(other than stock or rights to acquire stock) with respect to: (i) our common stock or (ii) options or warrants to acquire our common
stock; however, there is no guarantee that we will not make such distributions in the future. In addition, we do not currently have any
convertible debt outstanding nor do we currently intend to issue any convertible debt</B>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
position regarding the non-taxable treatment of the Subscription Right distribution is not binding on the IRS, or the courts. If this
position is finally determined by the IRS or a court to be incorrect, whether because, contrary to our expectations, distributions of
cash or property (other than stock or rights to acquire stock) are made with respect to our common stock, options or warrants, because
the issuance of the Subscription Rights is a &ldquo;disproportionate distribution&rdquo; or otherwise, the fair market value of the Subscription
Rights would be taxable to U.S. holders of our common stock as a dividend to the extent of the U.S. holder&rsquo;s pro rata share of
our current and accumulated earnings and profits, if any, with any excess being treated as a return of capital to the extent thereof
and then as capital gain. <B>Although no assurance can be given, we anticipate that we will not have current and accumulated earnings
and profits through the end of 2022</B>. Further, if the position regarding the non-taxable treatment of the Subscription Rights distribution
is incorrect, the treatment of holders of Participating Warrants is not clear, and it may differ from, and may be more adverse than,
the treatment of the Subscription Rights distribution to the holders of common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following discussion is based upon the treatment of the Subscription Right issuance as a non-taxable distribution with respect to a U.S.
holder&rsquo;s&rsquo; existing shares of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants for
U.S. federal income tax purposes.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Tax
Basis in the Subscription Rights</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the fair market value of the Subscription Rights a U.S. holder receives is less than 15% of the fair market value of the U.S. holder&rsquo;s
existing shares of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants (in each case, with respect
to which the Subscription Rights are distributed) on the date the U.S. holder receives the Subscription Rights, the Subscription Rights
will be allocated a zero tax basis for U.S. federal income tax purposes, unless the U.S. holder elects to allocate the tax basis in the
holder&rsquo;s existing shares of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants between
the existing shares of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants and the Subscription
Rights in proportion to the relative fair market values of the existing shares of common stock, Series B Preferred Stock, Series C Preferred
Stock or Participating Warrants and the Subscription Rights determined on the date of receipt of the Subscription Rights. If a U.S. holder
chooses to allocate tax basis between the holder&rsquo;s existing common stock, Series B Preferred Stock, Series C Preferred Stock or
Participating Warrants and the Subscription Rights, the U.S. holder must make this election on a statement included with the holder&rsquo;s
timely filed U.S. federal income tax return (including extensions) for the taxable year in which the U.S. holder receives the Subscription
Rights. Such an election is irrevocable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">However,
if the fair market value of the Subscription Rights a U.S. holder receives is 15% or more of the fair market value of the holder&rsquo;s
existing shares of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants on the date the U.S. holder
receives the Subscription Rights, then the U.S. holder must allocate tax basis in the existing shares of common stock, Series B Preferred
Stock, Series C Preferred Stock or Participating Warrants between those shares or warrants and the Subscription Rights the U.S. holder
receives in proportion to their fair market values determined on the date the U.S. holder receives the Subscription Rights. Please refer
to the discussion below regarding the U.S. tax treatment of a U.S. holder that, at the time of the receipt of the Subscription Right,
no longer holds the common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants with respect to which
the Subscription Right was distributed.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
fair market value of the Subscription Rights on the date that the Subscription Rights are distributed is uncertain and the fair market
value of the Participating Warrants is uncertain, and we have not obtained, and do not intend to obtain, an appraisal of the fair market
value of the Subscription Rights or the Participating Warrants on that date. In determining the fair market value of the Subscription
Rights, U.S. holders should consider all relevant facts and circumstances, including without limitation any difference between the Subscription
Price of the Subscription Rights and the trading price of our shares of common stock on the date that the Subscription Rights are distributed,
the fair market value and the conversion terms of the Preferred Stock, the exercise price of the Warrants, the length of the period during
which the Subscription Rights may be exercised and the fact that the Subscription Rights are non-transferable. In determining the fair
market value of the Participating Warrants, U.S. holders should consider all relevant facts and circumstances, including without limitation
the difference between the exercise price of the Participating Warrants and the trading price of our common stock on the date that the
Subscription Rights are distributed, the length of the period during which the Participating Warrants may be exercised, the nature of
the adjustment provisions in the Participating Warrants that may affect the economics of the exercise of such Participating Warrants
and any limitations of the transferability of the Participating Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exercise
of Subscription Rights</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
U.S. holder will not recognize gain or loss upon the exercise of a Subscription Right received in the Rights Offering. A U.S. holder&rsquo;s
adjusted tax basis, if any, in the Subscription Right plus the Subscription Price should be allocated between the share of Preferred
Stock and the Warrants acquired upon exercise of the Subscription Right. We believe that the tax basis in the common stock or Participating
Warrants upon which the Subscription Rights were issued which is allocated to the Subscription Rights under the prior section entitled
&ldquo;&mdash;Tax Basis in the Subscription Rights&rdquo; should be further allocated between the shares of Preferred Stock and the Warrants
acquired upon exercise of the Subscription Right in proportion to their relative fair market values on the date the Subscription Rights
were distributed. The Subscription Price should be allocated between the shares of Preferred Stock and the Warrant acquired upon exercise
of the Subscription Right in proportion to their relative fair market values on the exercise date. These allocations will establish the
U.S. holder&rsquo;s initial tax basis for U.S. federal income tax purposes in the shares of Preferred Stock and Warrants received upon
exercise of such U.S. holder&rsquo;s Subscription Right. The holding period of a share of Preferred Stock or a Warrant acquired upon
exercise of a Subscription Right in the Rights Offering will begin on the date of exercise.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If,
at the time of the receipt or exercise of the Subscription Right, the U.S. holder no longer holds the common stock, Series B Preferred
Stock, Series C Preferred Stock or Participating Warrant with respect to which the Subscription Right was distributed, then certain aspects
of the tax treatment of the receipt and exercise of the Subscription Right are unclear, including (1) the allocation of the tax basis
between the shares of our common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants previously sold
and the Subscription Right, (2) the impact of such allocation on the amount and timing of gain or loss recognized with respect to the
shares of our common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants previously sold, and (3) the
impact of such allocation on the tax basis of the shares of our Preferred Stock and Warrants acquired upon exercise of the Subscription
Right. If a U.S. holder exercises a Subscription Right received in the Rights Offering after disposing of shares of our common stock,
Series B Preferred Stock, Series C Preferred Stock or Participating Warrants with respect to which the Subscription Right is received,
the U.S. holder should consult its own tax advisor.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Expiration
of Subscription Rights</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
a U.S. holder allows Subscription Rights received in the Rights Offering to expire, the U.S. holder should not recognize any gain or
loss for U.S. federal income tax purposes, and the U.S. holder should re-allocate any portion of the tax basis in its existing common
shares, Series B Preferred Stock, Series C Preferred Stock or participating warrants previously allocated to the Subscription Rights
that have expired to such U.S. holder&rsquo;s existing common shares, Series B Preferred Stock, Series C Preferred Stock or participating
warrants, as applicable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Sale
or Other Disposition, Exercise or Expiration of Warrants</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Upon
the sale or other taxable disposition of a Warrant (other than by exercise) received upon exercise of a Subscription Right, a U.S. holder
will generally recognize capital gain or loss equal to the difference between the amount realized on the sale or other taxable disposition
and the U.S. holder&rsquo;s adjusted tax basis in the Warrant. A U.S. Holder&rsquo;s adjusted tax basis in a Warrant will generally equal
its initial tax basis (discussed above under &ldquo;&mdash;Exercise of Subscription Rights&rdquo;), as adjusted for any constructive
dividends on the Warrant described below. This capital gain or loss will be long-term capital gain or loss if the U.S. holder&rsquo;s
holding period in such Warrant is more than one year at the time of the sale or other taxable disposition. The deductibility of capital
losses is subject to certain limitations.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
U.S. holder will not be required to recognize income, gain or loss upon exercise of a Warrant received upon exercise of a Subscription
Right. A U.S. holder&rsquo;s tax basis in a share of our common stock received upon exercise of the Warrants for cash will be equal to
the sum of (1) the U.S. holder&rsquo;s tax basis in the Warrants exchanged therefor and (2) the exercise price of such Warrants. A U.S.
holder&rsquo;s holding period in the shares of our common stock received upon exercise will commence on the day after such U.S. holder
exercises the Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
certain circumstances, the Warrants will be exercisable on a cashless basis. The U.S. federal income tax treatment of an exercise of
a Warrant on a cashless basis is not clear, and could differ from the consequences described above. It is possible that a cashless exercise
could be a taxable event. U.S. holders are urged to consult their own tax advisors as to the consequences of an exercise of a Warrant
on a cashless basis, including with respect to whether the exercise is a taxable event, and their holding period and tax basis in the
common stock received.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
a Warrant expires without being exercised, a U.S. holder will recognize a capital loss in an amount equal to such holder&rsquo;s adjusted
tax basis in the Warrant. Such loss will be long-term capital loss if, at the time of the expiration, the U.S. holder&rsquo;s holding
period in such Warrant is more than one year. The deductibility of capital losses is subject to certain limitations.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Constructive
Dividends on Warrants</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
described in the section entitled &ldquo;Dividend Policy,&rdquo; we do not anticipate declaring or paying dividends to holders of our
common stock or our Preferred Stock in the foreseeable future. However, if at any time during the period in which a U.S. holder holds
Warrants received upon exercise of a Subscription Right, we were to pay a taxable dividend to our stockholders and, in accordance with
the anti-dilution provisions of the Warrants, the exercise price of the Warrants were decreased, that decrease would be deemed to be
the payment of a taxable dividend to a U.S. holder of the Warrants to the extent of our earnings and profits, notwithstanding the fact
that such holder will not receive a cash payment. If the exercise price is adjusted in certain other circumstances (or in certain circumstances,
there is a failure to make appropriate adjustments), or there is an adjustment to the number of common shares that will be issued on
exercise of the Warrants, such adjustments may also result in the deemed payment of a taxable dividend to a U.S. holder. U.S. holders
should consult their own tax advisors regarding the proper treatment of any adjustments to the exercise price of the Warrants. We are
currently required to report the amount of any deemed distributions to the IRS, as well as either on our website or to holders not exempt
from reporting.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Distributions
on Preferred Stock and Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
described in the section entitled &ldquo;Dividend Policy,&rdquo; we do not anticipate declaring or paying dividends to holders of our
Preferred Stock, Series B Preferred Stock, Series C Preferred Stock or common stock in the foreseeable future. However, if we do make
distributions of cash or property on our Preferred Stock, Series B Preferred Stock, Series C Preferred Stock or common stock, such distributions
will constitute dividends to the extent paid out of our current or accumulated earnings and profits, as determined for U.S. federal income
tax purposes. Dividends received by a corporate U.S. holder may be eligible for a dividends received deduction, subject to applicable
limitations. Dividends received by certain non-corporate U.S. holders, including individuals, are generally taxed at the lower applicable
capital gains rate provided certain holding period and other requirements are satisfied. Distributions in excess of our current and accumulated
earnings and profits will constitute a return of capital and first be applied against and reduce a U.S. holder&rsquo;s adjusted tax basis
in its Preferred Stock or common stock, as the case may be, but not below zero. Any excess will be treated as capital gain and will be
treated as described below in the section relating to the sale or disposition of our common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Sale,
Exchange or Other Disposition of Preferred Stock and Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Upon
a sale, exchange, or other taxable disposition of our Preferred Stock (other than by conversion) or our common stock, a U.S. holder generally
will recognize capital gain or loss equal to the difference between the amount realized (not including any amount attributable to declared
and unpaid dividends, which will be taxable as described above to U.S. holders of record who have not previously included such dividends
in income) and the U.S. holder&rsquo;s adjusted tax basis in our Preferred Stock or our common stock. The U.S. holder&rsquo;s adjusted
tax basis in our Preferred Stock generally will equal its initial tax basis (discussed above under &ldquo;<I>&mdash;</I>Exercise of Subscription
Rights&rdquo;), as adjusted for applicable distributions (including constructive dividends described below). A U.S. holder&rsquo;s adjusted
tax basis in our common stock generally will equal its initial tax basis in our common stock (discussed below under &ldquo;&mdash;Conversion
of the Preferred Stock into Our Common Stock&rdquo;), as adjusted for applicable distributions (including constructive dividends described
below). Such capital gain or loss generally will be long-term capital gain or loss if the U.S. holder&rsquo;s holding period for our
Preferred Stock or our common stock exceeded one year at the time of disposition (see the discussion below under &ldquo;&mdash;Conversion
of Our Preferred Stock into Our Common Stock&rdquo; regarding a U.S. holder&rsquo;s holding period for our common stock). Long-term capital
gains recognized by certain non-corporate U.S. holders, including individuals, generally are subject to reduced rates of taxation. The
deductibility of capital losses is subject to limitations.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Conversion
of Our Preferred Stock into Our Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
U.S. holder will not recognize any gain or loss in respect of the receipt of our common stock upon the conversion of our Preferred Stock
(except to the extent the U.S. holder receives a cash payment for any fractional share that would otherwise have been issuable upon conversion
of the Preferred Stock). The adjusted tax basis of our common stock that a U.S. holder receives on conversion will equal the adjusted
tax basis of the Preferred Stock converted (decreased by the adjusted tax basis allocable to any fractional share that would otherwise
have been issued upon conversion of the Preferred Stock), and the holding period of such common stock received on conversion will include
the period during which the U.S. holder held the Preferred Stock prior to conversion.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the event a U.S. holder&rsquo;s Preferred Stock is converted pursuant to an election by such U.S. holder in the case of certain acquisitions
or fundamental changes or pursuant to certain other transactions (including our consolidation or merger into another person), the tax
treatment of such a conversion will depend upon the facts underlying the particular transaction triggering such a conversion. In this
regard, it is possible that any related adjustments of the conversion rate would be treated as a constructive distribution to the U.S.
holder as described below under &ldquo;<I>&mdash;</I>Constructive Dividends on Preferred Stock<I>.</I>&rdquo; U.S. holders should consult
their own tax advisors to determine the specific tax treatment of a conversion under such circumstances.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Constructive
Dividends on Preferred Stock or Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
conversion rate of our Preferred Stock is subject to adjustment under certain circumstances, as described below under &ldquo;Description
of Securities&mdash;Preferred Stock&mdash;Preferred Stock<I>.</I>&rdquo; Section 305(c) of the Code and U.S. Treasury Regulations thereunder
may treat a U.S. holder of our Preferred Stock as having received a constructive distribution includable in such U.S. holder&rsquo;s
income in the manner as described above under &ldquo;<I>&mdash;</I>Distributions on Preferred Stock and Common Stock,&rdquo; if and to
the extent that certain adjustments in the conversion rate (or failures to make such an adjustment) increase the proportionate interest
of such U.S. holder in our earnings and profits. In certain other circumstances, an adjustment to the conversion rate of our Preferred
Stock or a failure to make such an adjustment could potentially give rise to constructive distributions to U.S. holders of our common
stock. Thus, under certain circumstances, U.S. holders may recognize income in the event of a constructive distribution even though they
may not receive any cash or property. We are currently required to report the amount of any deemed distributions to the IRS, as well
as either on our website or to holders not exempt from reporting.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Information
Reporting and Backup Withholding</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
U.S. holder may be subject to information reporting and backup withholding when such holder receives dividend payments (including constructive
dividends) or receives proceeds from the sale or other taxable disposition of the Warrants, shares of our Preferred Stock acquired through
the exercise of Subscription Rights or shares of our common stock acquired through conversion of our Preferred Stock or exercise of the
Warrants. Certain U.S. holders are exempt from backup withholding, including certain corporations and certain tax-exempt organizations.
A U.S. holder will be subject to backup withholding if such holder is not otherwise exempt (or fails to properly establish an exemption)
and such holder:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">fails
    to furnish the holder&rsquo;s taxpayer identification number, which for an individual is ordinarily his or her social security number;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">furnishes
    an incorrect taxpayer identification number;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">is
    notified by the IRS that the holder previously failed to properly report payments of interest or dividends; or</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">fails
    to certify under penalties of perjury that the holder has furnished a correct taxpayer identification number and that the IRS has
    not notified the holder that the holder is subject to backup withholding.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Backup
withholding is not an additional tax. Any amounts withheld under the backup withholding rules may be allowed as a refund or a credit
against a U.S. holder&rsquo;s U.S. federal income tax liability, provided the required information is timely furnished to the IRS. U.S.
holders should consult their own tax advisors regarding their qualification for an exemption from backup withholding and the procedures
for obtaining such an exemption.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Tax
Considerations Applicable to Non-U.S. Holders</U></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
purposes of this discussion, a &ldquo;non-U.S. holder&rdquo; is a beneficial owner of shares of our common stock, Series B Preferred
Stock, Series C Preferred Stock, Participating Warrants, our Subscription Rights, shares of our Preferred Stock and Warrants acquired
upon exercise of Subscription Rights or shares of our common stock acquired upon conversion of our Preferred Stock or exercise of Warrants,
as the case may be, that is neither a U.S. holder nor an entity treated as a partnership for U.S. federal income tax purposes.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Receipt,
Exercise and Expiration of the Subscription Rights</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
discussion assumes that the receipt of Subscription Rights will be treated as a nontaxable distribution. See &ldquo;<I>&mdash;</I>Tax
Considerations Applicable to U.S. Holders&mdash;Receipt of Subscription Rights&rdquo; above. In such case, non-U.S. holders will not
be subject to U.S. federal income tax (or any withholding thereof) on the receipt, exercise or expiration of the Subscription Rights.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exercise
of Warrants</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
non-U.S. holder will not be subject to U.S. federal income tax on the cash exercise of Warrants into shares of our common stock. As discussed
above in &ldquo;&mdash;Tax Considerations Applicable to U.S. Holders&mdash;Sale or Other Disposition, Exercise or Expiration of Warrants,&rdquo;
the U.S. federal income tax treatment of an exercise of a Warrant on a cashless basis is not clear. Non-U.S. holders are urged to consult
their own tax advisors as to the consequences of an exercise of a Warrant on a cashless basis, including with respect to whether the
exercise is a taxable event, and their holding period and tax basis in the common stock received.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B></B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Constructive
Dividends on Warrants</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
described in the section entitled &ldquo;Dividend Policy,&rdquo; we do not anticipate declaring or paying dividends to holders of our
Preferred Stock or common stock in the foreseeable future. However, if at any time during the period in which a non-U.S. holder holds
Warrants we were to pay a taxable dividend to our stockholders and, in accordance with the anti-dilution provisions of the Warrants,
the exercise price of the Warrants were decreased, that decrease would be deemed to be the payment of a taxable dividend to a non-U.S.
holder to the extent of our earnings and profits, notwithstanding the fact that such holder will not receive a cash payment. If the exercise
price is adjusted in certain other circumstances (or in certain circumstances, there is a failure to make appropriate adjustments), or
there is an adjustment to the number of common shares that will be issued on exercise of the Warrants, such adjustments may also result
in the deemed payment of a taxable dividend to a non-U.S. holder. Any resulting withholding tax attributable to deemed dividends may
be collected from other amounts payable or distributable to the non-U.S. holder. Non-U.S. holders should consult their own tax advisors
regarding the proper treatment of any adjustments to the Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Distributions
on Preferred Stock and Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
described in the section entitled &ldquo;Dividend Policy,&rdquo; we do not anticipate declaring or paying dividends to holders of our
Preferred Stock or common stock in the foreseeable future. However, if we do make distributions of cash or property on our Preferred
Stock or common stock, such distributions will constitute dividends for U.S. federal income tax purposes to the extent paid from our
current or accumulated earnings and profits, as determined under U.S. federal income tax principles. Amounts not treated as dividends
for U.S. federal income tax purposes will constitute a return of capital and first be applied against and reduce a non-U.S. holder&rsquo;s
adjusted tax basis in its Preferred Stock or common stock, as the case may be, but not below zero. Any excess will be treated as capital
gain and will be treated as described below in the section relating to the sale or disposition of our Preferred Stock, Warrants, or common
stock. Because we may not know the extent to which a distribution is a dividend for U.S. federal income tax purposes at the time it is
made, for purposes of the withholding rules discussed below we or the applicable withholding agent may treat the entire distribution
as a dividend.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to the discussion below on backup withholding and foreign accounts, dividends paid to a non-U.S. holder of our Preferred Stock or common
stock that are not effectively connected with the non-U.S. holder&rsquo;s conduct of a trade or business within the United States will
be subject to U.S. federal withholding tax at a rate of 30% of the gross amount of the dividends (or such lower rate specified by an
applicable income tax treaty).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Non-U.S.
holders will be entitled to a reduction in or an exemption from withholding on dividends as a result of either (1) an applicable income
tax treaty or (2) the non-U.S. holder holding our Preferred Stock or common stock in connection with the conduct of a trade or business
within the United States and such dividends being effectively connected with that trade or business. To claim such a reduction in or
exemption from withholding, the non-U.S. holder must provide the applicable withholding agent with a properly executed (a) IRS Form W-8BEN
or W-8BEN-E (or other applicable documentation) claiming an exemption from or reduction of the withholding tax pursuant to the benefits
of an income tax treaty between the United States and the country in which the non-U.S. holder resides or is established, or (b) IRS
Form W-8ECI stating that the dividends are not subject to withholding tax because they are effectively connected with the conduct by
the non-U.S. holder of a trade or business within the United States, as may be applicable. These certifications must be provided to the
applicable withholding agent prior to the payment of dividends and must be updated periodically. Non-U.S. holders that do not timely
provide the applicable withholding agent with the required certification, but that qualify for a reduced rate under an applicable income
tax treaty, may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for refund with the IRS.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
dividends paid to a non-U.S. holder are effectively connected with the non-U.S. holder&rsquo;s conduct of a trade or business within
the United States (and, if required by an applicable income tax treaty, the non-U.S. holder maintains a permanent establishment in the
United States to which such dividends are attributable), then, although exempt from U.S. federal withholding tax (provided the non-U.S.
holder provides appropriate certification, as described above, and subject to the discussion below on backup withholding and foreign
accounts), the non-U.S. holder will be subject to U.S. federal income tax on such dividends on a net income basis at the regular graduated
U.S. federal income tax rates. In addition, a non-U.S. holder that is a corporation may be subject to a branch profits tax at a rate
of 30% (or such lower rate specified by an applicable income tax treaty) on its effectively connected earnings and profits for the taxable
year that are attributable to such dividends, as adjusted for certain items. Non-U.S. holders should consult their own tax advisors regarding
their entitlement to benefits under any applicable income tax treaty.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Sale
or Other Disposition of Preferred Stock, Warrants or Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to the discussions below on backup withholding and foreign accounts, a non-U.S. holder will not be subject to U.S. federal income tax
on any gain realized upon the sale or other taxable disposition of our Preferred Stock, Warrants or common stock unless:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: -9.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    gain is effectively connected with the non-U.S. holder&rsquo;s conduct of a trade or business within the United States (and, if required
    by an applicable income tax treaty, the non-U.S. holder maintains a permanent establishment in the United States to which such gain
    is attributable);</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    non-U.S. holder is a nonresident alien individual present in the United States for 183 days or more during the taxable year of the
    disposition and certain other requirements are met; or</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    Preferred Stock, Warrants or common stock constitutes a U.S. real property interest, or USRPI, by reason of our status as a U.S.
    real property holding corporation, or USRPHC, for U.S. federal income tax purposes.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Gain
described in the first bullet point above generally will be subject to U.S. federal income tax on a net income basis at the regular graduated
rates. A Non-U.S. holder that is a corporation also may be subject to a branch profits tax at a rate of 30% (or such lower rate specified
by an applicable income tax treaty) on such effectively connected gain, as adjusted for certain items.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Gain
described in the second bullet point above will be subject to U.S. federal income tax at a rate of 30% (or such lower rate specified
by an applicable income tax treaty) on any gain derived from the disposition, which may be offset by U.S. source capital losses of the
non-U.S. holder (even though the individual is not considered a resident of the United States), provided the non-U.S. holder has timely
filed U.S. federal income tax returns with respect to such losses.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">With
respect to the third bullet point above, we believe we are not currently and do not anticipate becoming a USRPHC. Because the determination
of whether we are a USRPHC depends on the fair market value of our USRPIs relative to the fair market value of our other business assets
and our non-U.S. real property interests, however, there can be no assurance we are not a USRPHC or will not become one in the future.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Non-U.S.
holders should consult their own tax advisors regarding potentially applicable income tax treaties that may provide for different rules.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Conversion
of Our Preferred Stock into Our Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
non-U.S. holder will not recognize any gain or loss in respect of the receipt of our common stock upon the conversion of our Preferred
Stock (except to the extent the non-U.S. holder receives a cash payment for any fractional share that would otherwise have been issuable
upon conversion of the Preferred Stock).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Constructive
Dividends on Preferred Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
described above under &ldquo;&mdash;Tax Considerations Applicable to U.S. Holders&mdash;Constructive Dividends on Preferred Stock or
Common Stock,&rdquo; in certain circumstances, a non-U.S. holder will be deemed to receive a constructive distribution from us. Adjustments
in the conversion rate (or failures to adjust the conversion rate) that increase the proportionate interest of a non-U.S. holder in our
earnings and profits could result in deemed distributions to the non-U.S. holder that are treated as dividends for U.S. federal income
tax purposes. Any constructive dividend deemed paid to a non-U.S. holder will be subject to U.S. federal income tax or withholding tax
in the manner described above under &ldquo;&mdash;Tax Considerations Applicable to Non-U.S. Holders&mdash;Distributions on Preferred
Stock and Common Stock.&rdquo; It is possible that U.S. federal tax on the constructive dividend would be withheld, if applicable, from
subsequent payments on the Preferred Stock or our common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Information
Reporting and Backup Withholding</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to the discussion below on foreign accounts, a non-U.S. holder will not be subject to backup withholding with respect to distributions
on our Preferred Stock, Warrants or common stock we make to the non-U.S. holder, provided the applicable withholding agent does not have
actual knowledge or reason to know such holder is a United States person and the holder timely certifies its non-U.S. status, such as
by providing a valid IRS Form W-8BEN, W- 8BEN-E or W-8ECI, or other applicable certification. However, information returns generally
will be filed with the IRS in connection with any distributions (including deemed distributions) made on our Preferred Stock, Warrants
and common stock to the non-U.S. holder, regardless of whether any tax was actually withheld. Copies of these information returns may
also be made available under the provisions of a specific treaty or agreement to the tax authorities of the country in which the non-U.S.
holder resides or is established.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Information
reporting and backup withholding may apply to the proceeds of a sale or other taxable disposition of our Preferred Stock, Warrants or
common stock within the United States, and information reporting may (although backup withholding generally will not) apply to the proceeds
of a sale or other taxable disposition of our Preferred Stock, Warrants or common stock outside the United States conducted through certain
U.S.-related financial intermediaries, in each case, unless the beneficial owner timely certifies under penalty of perjury that it is
a non-U.S. holder on IRS Form W-8BEN or W-8BEN-E, or other applicable form (and the payor does not have actual knowledge or reason to
know that the beneficial owner is a U.S. person) or such owner otherwise timely establishes an exemption. Proceeds of a disposition of
our Preferred Stock, Warrants or common stock conducted through a non-U.S. office of a non-U.S. broker generally will not be subject
to backup withholding or information reporting.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Backup
withholding is not an additional tax. Any amounts withheld under the backup withholding rules may be allowed as a refund or a credit
against a non-U.S. holder&rsquo;s U.S. federal income tax liability, provided the required information is timely furnished to the IRS.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Additional
Withholding Tax on Payments Made to Foreign Accounts</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Withholding
taxes may be imposed under the Foreign Account Tax Compliance Act, or FATCA, on certain types of payments made to non-U.S. financial
institutions and certain other non-U.S. entities. Specifically, a 30% withholding tax may be imposed on dividends (including deemed dividends)
paid on our Preferred Stock, Warrants or common stock, or gross proceeds from the sale or other disposition of our Preferred Stock, Warrants
or common stock paid to a &ldquo;foreign financial institution&rdquo; or a &ldquo;non-financial foreign entity&rdquo; (each as defined
in the Code), unless (1) the foreign financial institution undertakes certain diligence and reporting obligations, (2) the non-financial
foreign entity either certifies it does not have any &ldquo;substantial United States owners&rdquo; (as defined in the Code) or furnishes
identifying information regarding each substantial United States owner, or (3) the foreign financial institution or non-financial foreign
entity otherwise qualifies for an exemption from these rules. If the payee is a foreign financial institution and is subject to the diligence
and reporting requirements in (1) above, it must enter into an agreement with the U.S. Department of the Treasury requiring, among other
things, that it undertake to identify accounts held by certain &ldquo;specified United States persons&rdquo; or &ldquo;United States-owned
foreign entities&rdquo; (each as defined in the Code), annually report certain information about such accounts, and withhold 30% on certain
payments to non-compliant foreign financial institutions and certain other account holders. Non-U.S. holders typically will be required
to furnish certifications (generally on the applicable IRS Form W-8) or other documentation to provide the information required by FATCA
or to establish compliance with or an exemption from withholding under FATCA. FATCA withholding may apply where payments are made through
a non-U.S. intermediary that is not FATCA compliant, even where the non-U.S. holder satisfies the holder&rsquo;s own FATCA obligations.
Foreign financial institutions located in jurisdictions that have an intergovernmental agreement with the United States governing FATCA
may be subject to different rules.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Withholding
under FATCA also potentially applies to payments of gross proceeds from the sale or other disposition of our common stock. Proposed regulations,
however, would eliminate withholding under FATCA on such payments, and the U.S. Treasury Department has indicated that taxpayers may
rely on this aspect of the proposed regulations until final regulations are issued. Because we may not know the extent to which a distribution
is a dividend for U.S. federal income tax purposes at the time it is made, for purposes of these withholding rules we or the applicable
withholding agent may treat the entire distribution as a dividend. Prospective investors should consult their own tax advisors regarding
the potential application of these withholding provisions.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_013"></A>DESCRIPTION
OF SECURITIES</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
of the date of this prospectus, our Restated Certificate of Incorporation authorizes us to issue 250,000,000 shares of common stock,
par value $0.01 per share, and 130,000,000 shares of preferred stock, par value $0.01 per share. The following is a summary of the rights
of our common and preferred stock and some of the provisions of our Restated Certificate of Incorporation and Amended and Restated Bylaws,
our outstanding warrants, our registration rights agreements and the Delaware General Corporation Law. Because it is only a summary,
it does not contain all the information that may be important to you and is subject to and qualified in its entirety by our Restated
Certificate of Incorporation and our Restated Bylaws, a copy of each of which has been incorporated as an exhibit to the registration
statement of which this prospectus forms a part.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
Restated Certificate of Incorporation and our Amended and Restated Bylaws contain certain provisions that are intended to enhance the
likelihood of continuity and stability in the composition of the board of directors, which may have the effect of delaying, deferring
or preventing a future takeover or change in control of the Company unless such takeover or change in control is approved by our board
of directors.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Common
Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
of June 30, 2022, there were 24,719,574 shares of common stock outstanding. In addition, as of June 30, 2022 there were: (i) 1,291,207
shares of common stock subject to outstanding options and restricted stock units; (ii) 626,799 shares of common stock reserved for future
issuance under our 2020 Equity Incentive Plan; (iii) 1,117,575 shares of common stock reserved for future issuance under outstanding
common stock warrants; (iv) 19,306 shares of common stock reserved for issuance on conversion of 26 shares of the Series B Preferred
Stock; and (v) 34,428 shares of common stock reserved for issuance on conversion of 51 shares of the Series C Preferred Stock. Each outstanding
share of common stock entitles the holder thereof to one vote per share on all matters. Our Amended and Restated Bylaws provide that
any vacancy occurring in the board of directors may be filled by the affirmative vote of a majority of the remaining directors. Stockholders
do not have preemptive rights to purchase shares in any future issuance of our common stock. In the event of our liquidation, dissolution
or winding up, holders of our common stock are entitled to receive, ratably, the net assets available to stockholders after payment of
all creditors.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Holders
of our common stock are entitled to one vote for each share held of record on all matters submitted to a vote of the stockholders, and
do not have cumulative voting rights. Accordingly, the holders of a majority of the shares of our common stock entitled to vote can elect
all of the directors standing for election. Subject to preferences that may be applicable to any outstanding shares of preferred stock,
holders of our common stock are entitled to receive ratably such dividends, if any, as may be declared from time to time by our board
of directors out of funds legally available for dividend payments. All outstanding shares of our common stock are fully paid and nonassessable,
and any shares of our common stock to be sold pursuant to this prospectus will be fully paid and nonassessable. The holders of common
stock have no preferences or rights of conversion, exchange, pre-emption or other subscription rights. There are no redemption or sinking
fund provisions applicable to our common stock. In the event of any liquidation, dissolution or winding-up of our affairs, holders of
our common stock will be entitled to share ratably in our assets that are remaining after payment or provision for payment of all of
our debts and obligations and after liquidation payments to holders of outstanding shares of preferred stock, if any.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
transfer agent and registrar for our common stock is American Stock Transfer and Trust Company. The transfer agent and the registrar&rsquo;s
address is 59 Maiden Lane, New York, New York 10038. Their telephone number is 1-800-937-5449. Our common stock is listed on The NASDAQ
Capital Market under the symbol &ldquo;SINT&rdquo;.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Preferred
Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
Board of directors has the authority under our Restated Certificate of Incorporation, without further action by our stockholders, to
issue up to 130,000,000 shares of preferred stock in one or more series, to establish from time to time the number of shares to be included
in each such series, to fix the rights, preferences, privileges and restrictions of the shares of each wholly unissued series, including
dividend rights, conversion rights, voting rights, terms of redemption, liquidation preference and sinking fund terms, and to increase
or decrease the number of shares of any such series (but not below the number of shares of such series then outstanding). Our board of
directors may authorize the issuance of preferred stock with voting or conversion rights that could have the effect of restricting dividends
on our common stock, diluting the voting power of our common stock, impairing the liquidation rights of our common stock or otherwise
adversely affecting the rights of holders of our common stock. The issuance of preferred stock, while providing flexibility in connection
with possible acquisitions and other corporate purposes, could, among other things, have the effect of delaying, deferring or preventing
a change of control and may adversely affect the market price of our common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Series
B Preferred Stock</I></B>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
board of directors designated 15,000 shares of our preferred stock as Series B Preferred Stock. As of June 30, 2022, there were 26 shares
of Series B Preferred stock outstanding. The Series B Preferred Stock ranks senior to our common stock and other classes of capital stock
with respect to redemption, unless the holders of a majority of the outstanding shares of Series B Preferred Stock consent to the creation
of parity stock or senior preferred stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Conversion</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
share of Series B Preferred Stock is convertible into shares of our common stock at any time at the holder&rsquo;s option at the Conversion
Price described below. We may not effect any conversion of Series B Preferred Stock, with certain exceptions, to the extent that, after
giving effect to an attempted conversion, the holder of Series B Preferred Stock (together with such holder&rsquo;s affiliates, and any
persons acting as a group together with such holder or any of such holder&rsquo;s affiliates) would beneficially own a number of shares
of common stock in excess of 4.99% (or, at the election of the holder, 9.99%) of the shares of our common stock then outstanding after
giving effect to such conversion, referred to as the Preferred Stock Beneficial Ownership Limitation; provided, however, that upon notice
to us, the holder may increase or decrease the Preferred Stock Beneficial Ownership Limitation, provided that in no event may the Preferred
Stock Beneficial Ownership Limitation exceed 9.99% and any increase in the Preferred Stock Beneficial Ownership Limitation will not be
effective until 61 days following notice of such increase from the holder to us.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to certain ownership limitations as described below and certain equity conditions being met, if during any 30 consecutive trading days,
the volume weighted average price of our common stock exceeds $130.61 and the daily dollar trading volume during such period exceeds
$500,000 per trading day, we have the right to force the conversion of the Series B Preferred Stock into common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Conversion
Price.</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Series B Preferred Stock is convertible into shares of common stock by dividing the stated value of the Series B Preferred Stock ($1,100)
by $1.4814 (the &ldquo;Conversion Price&rdquo;). The Conversion Price is subject to adjustment for stock splits, stock dividends, and
distributions of common stock or securities convertible, exercisable or exchangeable for common stock, subdivisions, combinations and
reclassifications.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to certain exclusions contained in the Certificate of Designation, if we in any manner grant or sell any rights, warrants or options
and the lowest price per share for which one share of common stock is at any time issuable upon the exercise of any such option or upon
conversion, exercise or exchange of any Common Stock Equivalents (as defined in the Certificate of Designation) issuable upon exercise
of any such option, exercise or exchange of any Common Stock Equivalent issuable upon the exercise of such option or otherwise pursuant
to the terms thereof is less than the Conversion Price, then such share of common stock will be deemed to be outstanding and to have
been issued and sold by us at the time of the granting or sale of such option for such price per share. For purposes of this paragraph
only, the &ldquo;lowest price per share for which one share of common stock is issuable upon the exercise of any such options or upon
conversion, exercise or exchange of any Common Stock Equivalent issuable upon exercise of any such option or otherwise pursuant to the
terms thereof&rdquo; will be equal to (1) the lower of&thinsp; (x) the sum of the lowest amounts of consideration (if any) received or
receivable by us with respect to any one share of common stock upon the granting or sale of such option, upon exercise of such option
and upon conversion, exercise or exchange of any Common Stock Equivalents issuable upon exercise of such option or otherwise pursuant
to the terms thereof and (y) the lowest exercise price set forth in such option for which one share of common stock is issuable upon
the exercise of any such options or upon conversion, exercise or exchange of any Common Stock Equivalents issuable upon exercise of any
such option or otherwise pursuant to the terms thereof. Except as contemplated by the terms of the Certificate of Designation, no further
adjustment of the Conversion Price will be made upon the actual issuance of such shares of common stock or of such convertible securities
upon the exercise of such options or otherwise pursuant to the terms of or upon the actual issuance of such Common Stock Equivalents.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to certain exclusions contained in the Certificate of Designation, if we in any manner issue or sell any Common Stock Equivalents and
the lowest price per share for which one share of common stock is at any time issuable upon the conversion, exercise or exchange thereof
or otherwise pursuant to the terms thereof is less than the Conversion Price, then such share of common stock will be deemed to be outstanding
and to have been issued and sold by us at the time of the issuance or sale of such convertible securities for such price per share. For
purposes of this paragraph only, the &ldquo;lowest price per share for which one share of common stock is issuable upon the conversion,
exercise or exchange thereof or otherwise pursuant to the terms thereof&rdquo; will be equal to (1) the lower of&thinsp; (x) the sum
of the lowest amounts of consideration (if any) received or receivable by us with respect to one share of common stock upon the issuance
or sale of the Common Stock Equivalent and upon conversion, exercise or exchange of such convertible security or otherwise pursuant to
the terms thereof and (y) the lowest conversion price set forth in such convertible security for which one share of common stock is issuable
upon conversion, exercise or exchange thereof or otherwise pursuant to the terms thereof minus (2) the sum of all amounts paid or payable
to the holder of such Common Stock Equivalent (or any other person) upon the issuance or sale of such Common Stock Equivalent plus the
value of any other consideration received or receivable by, or benefit conferred on, the holder of such Common Stock Equivalent (or any
other person). Except as contemplated by the terms of the Certificate of Designation, no further adjustment of the Conversion Price will
be made upon the actual issuance of such shares of common stock upon conversion, exercise or exchange of such Common Stock Equivalents
or otherwise pursuant to the terms thereof, and if any such issuance or sale of such Common Stock Equivalents is made upon exercise of
any options for which adjustment of the Conversion Price has been or is to be made, except as contemplated by the terms of the Certificate
of Designation, no further adjustment of the Conversion Price will be made by reason of such issuance or sale.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the purchase or exercise price provided for in any options, the additional consideration, if any, payable upon the issue, conversion,
exercise or exchange of any convertible securities, or the rate at which any convertible securities are convertible into or exercisable
or exchangeable for shares of common stock increases or decreases at any time (other than proportional changes in conversion or exercise
prices, as applicable, in connection with stock dividends, splits or combination of outstanding common stock) the Conversion Price in
effect at the time of such increase or decrease will be adjusted to the Conversion Price which would have been in effect at such time
had such options or convertible securities provided for such increased or decreased purchase price, additional consideration or increased
or decreased conversion rate, as the case may be, at the time initially granted, issued or sold. If the terms of any option or convertible
security that was outstanding as of the date of issuance of the Preferred Stock and related Warrants are increased or decreased in the
manner described in the immediately preceding sentence, then such option or convertible security and the shares of common stock deemed
issuable upon exercise, conversion or exchange thereof will be deemed to have been issued as of the date of such increase or decrease.
No adjustment will be made if such adjustment would result in an increase of the Conversion Price then in effect.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
any option and/or convertible security and/or Adjustment Right is issued in connection with the issuance or sale or deemed issuance or
sale of any other securities of the Company (as determined by the holder of Preferred Stock, the &ldquo;Primary Security&rdquo;, and
such option and/or convertible security and/or Adjustment Right (as defined below), the &ldquo;Secondary Securities&rdquo; and together
with the Primary Security, each a &ldquo;unit&rdquo;), together comprising one integrated transaction, the aggregate consideration per
share of common stock with respect to such Primary Security will be deemed to be the lower of&thinsp; (x) the purchase price of such
unit, (y) if such Primary Security is an option and/or convertible security, the lowest price per share for which one share of common
stock is at any time issuable upon the exercise or conversion of the Primary Security in accordance with the paragraphs above and (z)
the lowest volume-weighted average price of the common stock on any trading day during the four trading day period immediately following
the public announcement of such dilutive issuance. If any shares of common stock, options or convertible securities are issued or sold
or deemed to have been issued or sold for cash, the consideration received therefor will be deemed to be the net amount of consideration
received by us therefor. If any shares of common stock, options or convertible securities are issued or sold for a consideration other
than cash, the amount of such consideration received by us will be the fair value of such consideration, except where such consideration
consists of publicly traded securities, in which case the amount of consideration received by us for such securities will be the arithmetic
average of the volume-weighted average prices of such security for each of the five (5) trading days immediately preceding the date of
receipt. If any shares of common stock, options or convertible securities are issued to the owners of the non-surviving entity in connection
with any merger in which we are the surviving entity, the amount of consideration therefor will be deemed to be the fair value of such
portion of the net assets and business of the non-surviving entity as is attributable to such shares of common stock, options or convertible
securities (as the case may be). The fair value of any consideration other than cash or publicly traded securities will be determined
jointly by us and the holder. If such parties are unable to reach agreement within ten (10) days after the occurrence of an event requiring
valuation (the &ldquo;Valuation Event&rdquo;), the fair value of such consideration will be determined within five trading days after
the tenth day following such Valuation Event by an independent, reputable appraiser jointly selected by us and the holder. &ldquo;Adjustment
Right&rdquo; means any right granted with respect to any securities issued in connection with, or with respect to, any issuance or sale
(or deemed issuance or sale in accordance with the paragraph above) of shares of common stock that could result in a decrease in the
net consideration received by us in connection with, or with respect to, such securities (including, without limitation, any cash settlement
rights, cash adjustment or other similar rights).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
addition, holders of Preferred Stock may be eligible to elect an alternative price in the event we issue certain variable price securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Liquidation;
Dividends; Repurchases.</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the event of a liquidation, the holders of Series B Preferred Stock are entitled to participate on an as-converted-to-common stock basis
with holders of the common stock in any distribution of assets of the Company to the holders of common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Redemption
Right.</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
hold an option to redeem some or all of the Series B Preferred Stock at any time after the six-month anniversary of its issuance date
at a 25% premium to the stated value of the Series B Preferred Stock subject to redemption, upon 30 days prior written notice to the
holder of the Series B Preferred Stock. The Series B Preferred Stock would be redeemed by us for cash.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Fundamental
Transactions.</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the event of any fundamental transaction, generally including any merger with or into another entity, sale of all or substantially all
of our assets, tender offer or exchange offer, or reclassification of our common stock, then upon any subsequent conversion of the Series
B Preferred Stock, the holder will have the right to receive as alternative consideration, for each share of our common stock that would
have been issuable upon such conversion immediately prior to the occurrence of such fundamental transaction, the number of shares of
common stock of the successor or acquiring corporation or of our company, if it is the surviving corporation, and any additional consideration
receivable upon or as a result of such transaction by a holder of the number of shares of our common stock for which the Series B Preferred
Stock is convertible immediately prior to such event.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Voting
Rights.</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">With
certain exceptions, the holders of shares of Series B Preferred Stock have no voting rights. However, as long as any shares of Series
B Preferred Stock remain outstanding, we may not, without the affirmative vote of holders of a majority of the then-outstanding Series
B Preferred Stock, (a) alter or change adversely the powers, preferences or rights given to the Series B Preferred Stock or alter or
amend the Certificate of Designation, (b) increase the number of authorized shares of Series B Preferred Stock, (c) amend our Certificate
of Incorporation or other charter documents in any manner that adversely affects any rights of holders of Series B Preferred Stock disproportionately
to the rights of holders of our other capital stock, or (d) enter into any agreement with respect to any of the foregoing.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Jurisdiction
and Waiver of Trial by Jury</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Other
than with respect to suits, actions or proceedings arising under the federal securities laws, the Certificate of Designation provides
for investors to consent to exclusive jurisdiction to courts located in New York, New York and provides for a waiver of the right to
a trial by jury. It also provides that disputes are governed by Delaware law.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Series
C Preferred Stock.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
board of directors designated 9,440 shares of our preferred stock as Series C Preferred Stock. As of June 30, 2022, there were 51 shares
of Series C Preferred stock outstanding.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Conversion.
</I>Each share of Series C Preferred Stock is convertible at our option at any time or at the option of the holder at any time, into
the number of shares of our common stock determined by dividing the $1,000 stated value per share of the Preferred Stock by a conversion
price of $1.4814 per share. In addition, the conversion price per share is subject to adjustment for stock dividends, distributions,
subdivisions, combinations or reclassifications. Subject to limited exceptions, a holder of the Series C Preferred Stock will not have
the right to convert any portion of the Series C Preferred Stock to the extent that, after giving effect to the conversion, the holder,
together with its affiliates, would beneficially own in excess of 4.99% of the number of shares of our common stock outstanding immediately
after giving effect to its conversion. A holder of the Series C Preferred Stock, upon notice to the Company, may increase or decrease
the beneficial ownership limitation provisions of such holder&rsquo;s Series C Preferred Stock, provided that in no event shall the limitation
exceed 9.99% of the number of shares of our common stock outstanding immediately after giving effect to its conversion. In the event
that a conversion is effected at our option, we will exercise such option to convert shares of Series C Preferred Stock on a pro rata
basis among all of the holders based on such holders&rsquo; shares of Series C Preferred Stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Fundamental
Transactions. </I>In the event we effect certain mergers, consolidations, sales of substantially all of our assets, tender or exchange
offers, reclassifications or share exchanges in which our common stock is effectively converted into or exchanged for other securities,
cash or property, we consummate a business combination in which another person acquires 50% of the outstanding shares of our common stock,
or any person or group becomes the beneficial owner of 50% of the aggregate ordinary voting power represented by our issued and outstanding
common stock, then, upon any subsequent conversion of the Series C Preferred Stock, the holders of the Series C Preferred Stock will
have the right to receive any shares of the acquiring corporation or other consideration it would have been entitled to receive if it
had been a holder of the number of shares of common stock then issuable upon conversion in full of the Series C Preferred Stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Dividends.
</I>Holders of Series C Preferred Stock shall be entitled to receive dividends (on an as-if-converted-to-common-stock basis) in the same
form as dividends actually paid on shares of the common stock when, as and if such dividends are paid on shares of common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Voting
Rights. </I>Except as otherwise provided in the certificate of designation or as otherwise required by law, the Series C Preferred Stock
has no voting rights.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Liquidation
Preference<B>. </B></I>Upon our liquidation, dissolution or winding-up, whether voluntary or involuntary, holders of Series C Preferred
Stock will be entitled to receive out of our assets, whether capital or surplus, the same amount that a holder of common stock would
receive if the Series C Preferred Stock were fully converted (disregarding for such purpose any conversion limitations under the certificate
of designation) to common stock, which amounts shall be paid pari passu with all holders of common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Redemption
Rights. </I>We are not obligated to redeem or repurchase any shares of Series C Preferred Stock. Shares of Series C Preferred Stock are
not otherwise entitled to any redemption rights, or mandatory sinking fund or analogous provisions.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Future
Preferred Stock</I></B>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
board of directors will fix the rights, preferences, privileges, qualifications and restrictions of the preferred stock of each series
that we sell under this prospectus and applicable prospectus supplements in the certificate of designation relating to that series. We
will file as an exhibit to the registration statement of which this prospectus is a part, or incorporate by reference into the registration
statement of which this prospectus is a part the form of any certificate of designation that describes the terms of the series of preferred
stock we are offering before the issuance of the related series of preferred stock. This description will include:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 24px"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 24px"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    title and stated value;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    number of shares we are offering;</FONT></TD></TR>
</TABLE>

<P STYLE="margin: 0">&nbsp;</P>

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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 24px"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 24px"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    liquidation preference per share;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    purchase price per share;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 24px"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 24px"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    dividend rate per share, dividend period and payment dates and method of calculation for dividends;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">whether
    dividends will be cumulative or non-cumulative and, if cumulative, the date from which dividends will accumulate;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    right, if any, to defer payment of dividends and the maximum length of any such deferral period;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    procedures for any auction and remarketing, if any;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    provisions for a sinking fund, if any;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    provisions for redemption or repurchase, if applicable, and any restrictions on our ability to exercise those redemption and repurchase
    rights;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
    listing of the preferred stock on any securities exchange or market;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">whether
    the preferred stock will be convertible into our common stock or other securities of ours, including warrants, and, if applicable,
    the conversion period, the conversion price, or how it will be calculated, and under what circumstances it may be adjusted;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">voting
    rights, if any, of the preferred stock;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">preemption
    rights, if any;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">restrictions
    on transfer, sale or other assignment, if any;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
    discussion of any material or special United States federal income tax considerations applicable to the preferred stock;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    relative ranking and preferences of the preferred stock as to dividend rights and rights if we liquidate, dissolve or wind up our
    affairs;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
    limitations on issuances of any class or series of preferred stock ranking senior to or on a parity with the series of preferred
    stock being issued as to dividend rights and rights if we liquidate, dissolve or wind up our affairs; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
    other specific terms, rights, preferences, privileges, qualifications or restrictions of the preferred stock.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">When
we issue shares of preferred stock under this prospectus, the shares will be fully paid and nonassessable and will not have, or be subject
to, any preemptive or similar rights.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
General Corporation Law of the State of Delaware, the state of our incorporation, provides that the holders of preferred stock will have
the right to vote separately as a class on any proposal involving fundamental changes in the rights of holders of that preferred stock.
This right is in addition to any voting rights that may be provided for in the applicable certificate of designation.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Description
of Other Outstanding Securities of the Company</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Warrants</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
of June 30, 2022, there were 1,117,575 common stock purchase warrants outstanding, which expire between July 28, 2022 and February
2025. Each of these warrants entitles the holder to purchase one share of common stock at prices ranging between $278,370 and $1.4814,
as converted, per share, with a weighted average exercise price of $6.43 per share. Certain of these warrants has a net exercise provision
under which its holder may, in lieu of payment of the exercise price in cash, surrender the warrant and receive a net amount of shares
based on the fair market value of our common stock at the time of exercise of the warrant after deduction of the aggregate exercise price.
Each of these warrants also contains provisions for the adjustment of the exercise price and the aggregate number of shares issuable
upon the exercise of the warrant in the event of dividends, share splits, reorganizations and reclassifications and consolidations. Certain
of these warrants contain a provision requiring a reduction to the exercise price in the event we issue common stock, or securities convertible
into or exercisable for common stock, at a price per share lower than the warrant exercise price.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
holders of certain of these warrants have registration rights that are outlined below under the heading &ldquo;Registration Rights.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>February
2020 Rights Offering Warrants</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
February 6, 2020, we issued 6,372,000 common stock warrants (the &ldquo;February 2020 Warrants&rdquo;) in a rights offering to our stockholders.
The material terms and provisions of the February 2020 Warrants are summarized below. This summary of the February 2020 Warrants is not
complete. For the complete terms of the February 2020 Warrants, you should refer to the form of February 2020 Warrant filed as an exhibit
to the registration statement of which this prospectus forms a part.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to a warrant agency agreement between us and American Stock Transfer &amp; Trust Company, LLC, as warrant agent, the February 2020 Warrants
were issued in book-entry form and are represented only by one or more global warrants deposited with the warrant agent, as custodian
on behalf of The Depository Trust Company, or DTC, and registered in the name of Cede &amp; Co., a nominee of DTC, or as otherwise directed
by DTC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Exercisability.
</I>Each February 2020 Warrant became exercisable at the time of issuance and will expire five years from their issuance date. The February
2020 Warrants are exercisable, at the option of each holder, in whole or in part by delivering to us a duly executed exercise notice
and payment in full for the number of shares of our common stock purchased upon such exercise, except in the case of a cashless exercise
as discussed below. The number of shares of common stock issuable upon exercise of the February 2020 Warrants is subject to adjustment
in certain circumstances, including a stock split of, stock dividend on, or a subdivision, combination or recapitalization of the common
stock. If we effect a merger, consolidation, sale of substantially all of our assets, or other similar transaction, then, upon any subsequent
exercise of a February 2020 Warrant, the February 2020 Warrant holder will have the right to receive any shares of the acquiring corporation
or other consideration it would have been entitled to receive if it had been a holder of the number of shares of common stock then issuable
upon exercise in full of the February 2020 Warrant.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Cashless
Exercise. </I>After the earlier of (a) the date that is 30 days after the initial exercise date of the February 2020 Warrants or (b)
such trading day that the aggregate volume of shares of common stock sold since the expiration of the Offering exceeds three times the
number of shares of common stock and common stock equivalents sold in the Offering, the holder shall be permitted to exercise the February
2020 Warrant, on a cashless basis, regardless of the then applicable trading price of the common stock on Nasdaq, for an aggregate number
of shares of common stock equal to the product of (i) the aggregate number of shares of common stock that would be issuable upon exercise
of the Warrant if such exercise were by means of a cash exercise and (ii) 0.70.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Additionally,
if at any time there is no effective registration statement registering, or the prospectus contained therein is not available for issuance
of, the shares issuable upon exercise of the warrant, the holder may exercise the warrant on a cashless basis, in which a portion of
the warrant is cancelled in payment of the purchase price payable in respect of the number of shares of our common stock purchasable
upon such exercise.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Exercise
Price. </I>Each February 2020 Warrant represents the right to purchase one share of common stock at an exercise price of $1.50 per share.
In addition, the exercise price per share is subject to adjustment for stock dividends, distributions, subdivisions, combinations, or
reclassifications, and for certain dilutive issuances. Subject to limited exceptions, a holder of warrants will not have the right to
exercise any portion of the warrant to the extent that, after giving effect to the exercise, the holder, together with its affiliates,
and any other person acting as a group together with the holder or any of its affiliates, would beneficially own in excess of 4.99% of
the number of shares of our common stock outstanding immediately after giving effect to its exercise. The holder, upon notice to the
Company, may increase or decrease the beneficial ownership limitation provisions of the warrant, provided that in no event shall the
limitation exceed 9.99% of the number of shares of our common stock outstanding immediately after giving effect to the exercise of the
warrant.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Fundamental
Transactions. </I>In the event we consummate a merger or consolidation with or into another person or other reorganization event in which
our common shares are converted or exchanged for securities, cash or other property, or we sell, lease, license, assign, transfer, convey
or otherwise dispose of all or substantially all of our assets or we or another person acquires 50% or more of our outstanding shares
of common stock, referred to as a fundamental transaction, then following such event, the holders will have the option, which may be
exercised within 30 days after the consummation of the fundamental transaction, to require the Company or the successor entity purchase
the Warrant from the holder by paying to the holder an amount of cash equal to the Black Scholes value of the remaining unexercised portion
of the warrant on the date of the consummation of the fundamental transaction. However, if the fundamental transaction is not within
the Company&rsquo;s control, including not approved by the Company&rsquo;s Board of Directors, the holder will only be entitled to receive
from the Company or any successor entity, as of the date of consummation of such fundamental transaction, the same type or form of consideration
(and in the same proportion), at the Black Scholes value of the unexercised portion of the Warrant, that is being offered and paid to
the holders of common stock of the Company in connection with the fundamental transaction, whether that consideration be in the form
of cash, stock or any combination thereof, or whether the holders of common stock are given the choice to receive from among alternative
forms of consideration in connection with the fundamental transaction.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Transferability.
</I>Subject to applicable laws and restrictions, a holder may transfer a warrant upon surrender of the warrant to us with a completed
and signed assignment in the form attached to the warrant. The transferring holder will be responsible for any tax that liability that
may arise as a result of the transfer.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>No
Market. </I>There is no public trading market for the February 2020 Warrants, and they are not listed for trading on Nasdaq or any other
securities exchange or market.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Rights
as Stockholder. </I>Except as set forth in the February 2020 Warrants, the holder of a warrant, solely in such holder&rsquo;s capacity
as a holder of a February 2020 Warrant, will not be entitled to vote, to receive dividends, or to any of the other rights of our stockholders.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Redemption
Rights. </I>We may redeem the warrants for $0.01 per warrant if our common stock closes above $8.00 per share for ten consecutive trading
days, provided that we may not do so prior to the first anniversary of expiration of the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Amendments
and Waivers. </I>The provisions of each February 2020 Warrant may be modified or amended or the provisions thereof waived with the written
consent of us and the holder.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Maxim
and Ascendiant Warrants</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Also
on February 6, 2020, in connection with a rights offering, we issued 203,904 common stock warrants (the &ldquo;Maxim Warrants&rdquo;)
to Maxim Group LLC, as the dealer manager in such rights offering, and 50,976 common stock warrants (the &ldquo;Ascendiant Warrants&rdquo;)
to Ascendiant Capital Markets, LLC, as a financial advisor to us in such rights offering. The Maxim Warrants and Ascendiant Warrants
have the same material terms as the February 2020 Warrants, except as described below.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Maxim Warrants and Ascendiant Warrants became exercisable 6 months from February 6, 2020 and will expire on January 17, 2025. The Maxim
Warrants and Ascendiant Warrants are exercisable at a price of $1.6295 per share, subject to adjustment for stock dividends, distributions,
subdivisions, combinations, or reclassifications, and for certain dilutive issuances. Subject to limited exceptions, a holder of the
Maxim Warrants and Ascendiant Warrants will not have the right to exercise any portion of such warrant to the extent that, after giving
effect to the exercise, the holder, together with its affiliates, and any other person acting as a group together with the holder or
any of its affiliates, would beneficially own in excess of 4.99% of the number of shares of our common stock outstanding immediately
after giving effect to its exercise. The holder, upon notice to us, may increase or decrease the beneficial ownership limitation provisions
of the warrant, provided that in no event shall the limitation exceed 9.99% of the number of shares of our common stock outstanding immediately
after giving effect to the exercise of the warrant.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Maxim Warrants and Ascendiant Warrants contain the same provisions regarding fundamental transactions as those contained in the February
2020 Warrants, except that the Maxim Warrants and Ascendiant Warrants do not provide the holders thereof with the option to require us,
or a successor entity, to pay an amount equal to the Black Scholes value of the warrants in the event of certain fundamental transactions.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Maxim Warrants and Ascendiant Warrants are not redeemable. The Maxim Warrants and Ascendiant Warrants contain unlimited &ldquo;piggyback&rdquo;
registration rights for a period of five years after February 6, 2020 (but not longer than 7 years from January 17, 2020) at our expense,
subject to certain exceptions. We relied on the exemption from registration available under Section 4(a)(2) of the Securities Act of
1933, as amended, in connection with the issuance of the warrants to Maxim and Ascendiant.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
summary of the Maxim Warrants and Ascendiant Warrants is not complete. For the complete terms of the Maxim Warrants and Ascendiant Warrants,
you should refer to the form of Maxim Warrants and Ascendiant Warrants filed as an exhibit to the registration statement of which this
prospectus forms a part.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>May
2018 Public Offering Warrants</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
May 14, 2018, we issued 379,000 common stock warrants (the &ldquo;May 2018 Warrants&rdquo;) in a public offering. The material terms
and provisions of the May 2018 Warrants are summarized below. This summary of the May 2018 Warrants is not complete. For the complete
terms of the May 2018 Warrants, you should refer to the form of May 2018 Warrant filed as an exhibit to the registration statement of
which this prospectus forms a part.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to a warrant agency agreement between us and American Stock Transfer &amp; Trust Company, LLC, as warrant agent, the May 2018 Warrants
were issued in book-entry form and are represented only by one or more global warrants deposited with the warrant agent, as custodian
on behalf of The Depository Trust Company, or DTC, and registered in the name of Cede &amp; Co., a nominee of DTC, or as otherwise directed
by DTC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Exercisability,
Exercise Price and Term. </I>The May 2018 Warrants entitle the holder to purchase shares of our common stock at an exercise price equal
to $1.4814 per share. The May 2018 Warrants were exercisable immediately and expire on the five-year anniversary of the issuance date.
The holder of a May 2018 Warrant will not be deemed a holder of our underlying common stock until the May 2018 Warrant is exercised,
except as set forth in the May 2018 Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
exercise price and the number of shares issuable upon exercise of the May 2018 Warrants is subject to appropriate adjustment, similar
to that described with respect to the Series B Preferred Stock above, in the event of recapitalization events, stock dividends, stock
splits, stock combinations, reclassifications, reorganizations or similar events affecting our common stock. Subject to certain exclusions
contained in the May 2018 Warrant, the exercise price is also subject to adjustment in the event that we sell or grant any option to
purchase, or sell or grant any right to reprice, or otherwise dispose of or issue (or announce any offer, sale, grant or any option to
purchase or other disposition) any common stock or common stock equivalents (as defined in the May 2018 Warrants), at an effective price
per share less than the exercise price then in effect (including in the event we issued Series B Preferred Stock at a conversion price
lower than the initial conversion price of the Series B Preferred Stock). In addition, May 2018 Warrant holders may be eligible to elect
an alternative price in the event we issue certain variable price securities. The May 2018 Warrant holders must pay the exercise price
in cash upon exercise of the May 2018 Warrants, unless such May 2018 Warrant holders are utilizing the cashless exercise provision of
the May 2018 Warrants, which is only available in certain circumstances such as if the underlying shares are not registered with the
SEC pursuant to an effective registration statement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Fundamental
Transactions. </I>In addition, in the event we consummate a merger or consolidation with or into another person or other reorganization
event in which our common shares are converted or exchanged for securities, cash or other property, or we sell, lease, license, assign,
transfer, convey or otherwise dispose of all or substantially all of our assets or we or another person acquires 50% or more of our outstanding
shares of common stock, referred to as a fundamental transaction, then following such event, the holders of the May 2018 Warrants will
be entitled to receive upon exercise of the May 2018 Warrants the same kind and amount of securities, cash or property which the holders
would have received had they exercised the May 2018 Warrants immediately prior to such fundamental transaction. Any successor to us or
surviving entity is required to assume the obligations under the warrants. Notwithstanding the foregoing, in the event of a fundamental
transaction, the holders will have the option, which may be exercised within 30 days after the consummation of the fundamental transaction,
to require us or the successor entity purchase the Warrant from the holder by paying to the holder an amount of cash equal to the Black
Scholes value of the remaining unexercised portion of the warrant on the date of the consummation of the fundamental transaction. However,
if the fundamental transaction is not within our control, including not approved by our Board of Directors, the holder will only be entitled
to receive from us or any successor entity, as of the date of consummation of such fundamental transaction, the same type or form of
consideration (and in the same proportion), at the Black Scholes value of the unexercised portion of the May 2018 Warrant, that is being
offered and paid to the holders of our common stock in connection with the fundamental transaction, whether that consideration be in
the form of cash, stock or any combination thereof, or whether the holders of common stock are given the choice to receive from among
alternative forms of consideration in connection with the fundamental transaction.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Upon
the holder&rsquo;s exercise of a May 2018 Warrant, we will issue the shares of common stock issuable upon exercise of the May 2018 Warrant
within two trading days following our receipt of a notice of exercise, provided that payment of the exercise price has been made (unless
exercised via the &ldquo;cashless&rdquo; exercise provision).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Prior
to the exercise of any May 2018 Warrants to purchase common stock, holders of the May 2018 Warrants will not have any of the rights of
holders of the common stock purchasable upon exercise, including the right to vote, except as set forth therein.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">May
2018 Warrant holders may exercise the May 2018 Warrants only if the issuance of the shares of common stock upon exercise of the May 2018
Warrants is covered by an effective registration statement, or an exemption from registration is available under the Securities Act and
the securities laws of the state in which the holder resides. The May 2018 Warrant holders must pay the exercise price in cash upon exercise
of the May 2018 Warrants unless there is not an effective registration statement or, if required, there is not an effective state law
registration or exemption covering the issuance of the shares underlying the May 2018 Warrants (in which case, the May 2018 Warrants
may only be exercised via a &ldquo;cashless&rdquo; exercise provision).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Beneficial
Ownership Limitation</I>. The May 2018 Warrant provides that we may not effect any exercise of the May 2018 Warrants, with certain exceptions,
to the extent that, after giving effect to an attempted exercise, the holder (together with such holder&rsquo;s affiliates, and any persons
acting as a group together with such holder or any of such holder&rsquo;s affiliates) would beneficially own a number of shares of common
stock in excess of 4.99% (or, at the election of the holder, 9.99%) of the shares of our common stock then outstanding after giving effect
to such exercise, referred to as the May 2018 Warrant Beneficial Ownership Limitation; provided, however, that upon notice to us, the
holder may increase or decrease the May 2018 Warrant Beneficial Ownership Limitation, provided that in no event may the May 2018 Warrant
Beneficial Ownership Limitation exceed 9.99% and any increase in the May 2018 Warrant Beneficial Ownership Limitation will not be effective
until 61 days following notice of such increase from the holder to us.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Cashless
Exercise. </I>If a May 2018 Warrant is exercised via the &ldquo;cashless&rdquo; exercise provision, the holder will receive the number
of shares equal to the quotient obtained by dividing (i) the difference between the VWAP (as determined pursuant to the terms of the
May 2018 Warrants) and the exercise price of the May 2018 Warrant multiplied by the number of shares issuable under the May 2018 Warrant
if such exercise were by means of a cash exercise by (ii) the VWAP (as determined pursuant to the terms of the May 2018 Warrants).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Jurisdiction
and Waiver of Trial by Jury</I>. Other than with respect to suits, actions or proceedings arising under the federal securities laws,
the May 2018 Warrant provides for investors to consent to exclusive jurisdiction to courts located in New York, New York and provides
for a waiver of the right to a trial by jury. It also provides that disputes are governed by New York law.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I></I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Repricing
of Series E Warrants and Issuance of New Warrants</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
March 6, 2018, we entered into a Warrant Amendment Agreement (the &ldquo;Amendment Agreement&rdquo;) with the holders of previously issued
Series E Common Stock Purchase Warrants (collectively, the &ldquo;Series E Investors&rdquo;).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with that certain Series E Common Stock Purchase Warrant between us and Series E Investors dated July 8, 2016, (the &ldquo;Series
E Warrant Agreement&rdquo;) we issued to the Series E Investors warrants to purchase up to 22,278 shares of common stock (the &ldquo;Warrant
Shares&rdquo;) at an exercise price of $60.00 per share, (the &ldquo;Series E Investor Warrants&rdquo;). Under the terms of the Amendment
Agreement, in consideration of the Series E Investors exercising 22,278 of the Series E Investor Warrants (the &ldquo;Series E Warrant
Exercise&rdquo;), the exercise price per share of the Series E Investor Warrants was reduced to $63.75 per share. In addition, and as
further consideration, we issued to the Series E Investors warrants to purchase up to the number of shares of common stock equal to 100%
of the number of Series E Warrant Shares issued pursuant to the Series E Warrant Exercise at an exercise price per share equal to $60.00
per share, the closing bid price for our common stock on March 5, 2018 (the &ldquo;New Warrants&rdquo;). The Series E Investors may exercise
the remaining 33,899 Series E Investor Warrants at their discretion. The Amendment Agreement incorporated portions of the Series E Warrant
Agreement, which contained customary representations, warranties and covenants by each of us and the Series E Investors.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
New Warrants are exercisable for up to five years from the Effective Date. The exercise price and number of shares issuable upon exercise
of the New Warrants are subject to adjustment for stock splits, combinations, recapitalization events and certain dilutive issuances.
The New Warrants are required to be exercised for cash, provided that if during the term of the New Warrants there is not an effective
registration statement under the Securities Act covering the resale of the shares issuable upon exercise of the New Warrants, then the
New Warrants may be exercised on a cashless (net exercise) basis. The New Warrant is attached as an exhibit to the registration statement
of which this prospectus forms a part and is incorporated herein by reference.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Securities
Issued to North Stadium Investments, LLC</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
July 28, 2017, in connection with a $2.5 million term loan, we issued to North Stadium a warrant to acquire shares of common stock with
a five-year term (the &ldquo;North Stadium Warrant&rdquo;). As a result of our reverse stock splits since the North Stadium Warrant was
issued, the North Stadium Warrant is exercisable for 1,833 shares of common stock as of the date of this prospectus, at an exercise price
of $151.20 per share. The North Stadium Warrant also has a net exercise provision under which the holder may, in lieu of payment of the
exercise price in cash, surrender the North Stadium Warrant and receive a net number of shares of common stock based on the fair market
value of our common stock at the time of exercise of the North Stadium Warrant after deduction of the aggregate exercise price. The North
Stadium Warrant also contains provisions for the adjustment of the exercise price and the aggregate number of shares of common stock
issuable upon the exercise of the North Stadium Warrant in the event of dividends, share splits, reorganizations, reclassifications and
consolidations. The North Stadium Warrant is attached as an exhibit to the registration statement of which this prospectus forms a part
and is incorporated herein by reference.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Outstanding
December 2012 Warrants</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
December 17, 2012, in connection with entering into a commercial lending transaction, we issued warrants to purchase a total of 270,000
shares of our Series F convertible preferred stock to two of our institutional lenders. These warrants are exercisable for ten years
after the date of issuance. As a result of our reverse stock splits since these warrants were issued and other corporate changes, these
warrants are exercisable for 13 shares of common stock as of the date of this prospectus, at an exercise price of $278,370 per share.
These warrants have a net exercise provision under which the holder may, in lieu of payment of the exercise price in cash, surrender
the warrant and receive a net number of shares of common stock based on the fair market value of our common stock at the time of exercise
of the warrant after deduction of the aggregate exercise price. Each of these warrants also contains provisions for the adjustment of
the exercise price and the aggregate number of shares of common stock issuable upon the exercise of the warrant in the event of dividends,
share splits, reorganizations, reclassifications and consolidations. These warrants are attached as exhibits to the registration statement
of which this prospectus is a part and are incorporated herein by reference.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Series
D Preferred Stock Included in Units Issuable in the Rights Offering</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will authorize the Series D Preferred Stock by filing a certificate of designation with the Secretary of State of Delaware. The certificate
of designation may be authorized by our Board without approval by our stockholders.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Conversion.
</I>Each share of Preferred Stock will be convertible at the option of the holder at any time, into the number of shares of our common
stock determined by dividing the $1,000 stated value per share of the Preferred Stock by a conversion price of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share. In addition,
the conversion price per share is subject to adjustment for stock dividends, distributions, subdivisions, combinations or reclassifications.
Subject to limited exceptions, a holder of the Preferred Stock will not have the right to convert any portion of the Preferred Stock
to the extent that, after giving effect to the conversion, the holder, together with its affiliates, would beneficially own in excess
of 4.99% of the number of shares of our common stock outstanding immediately after giving effect to its conversion. A holder of the Preferred
Stock, upon notice to us, may increase or decrease the beneficial ownership limitation provisions of such holder&rsquo;s Preferred Stock,
provided that in no event shall the limitation exceed 9.99% of the number of shares of our common stock outstanding immediately after
giving effect to its conversion.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Fundamental
Transactions. </I>In the event we effect certain mergers, consolidations, sales of substantially all of our assets, tender or exchange
offers, reclassifications or share exchanges in which our common stock is effectively converted into or exchanged for other securities,
cash or property, we consummate a business combination in which another person acquires 50% of the outstanding shares of our common stock,
or any person or group becomes the beneficial owner of 50% of the aggregate ordinary voting power represented by our issued and outstanding
common stock, then, upon any subsequent conversion of the Preferred Stock, the holders of the Preferred Stock will have the right to
receive any shares of the acquiring corporation or other consideration it would have been entitled to receive if it had been a holder
of the number of shares of common stock then issuable upon conversion in full of the Preferred Stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Dividends.
</I>Holders of Preferred Stock shall be entitled to receive dividends (on an as-if-converted-to-common-stock basis) in the same form
as dividends actually paid on shares of the common stock when, as and if such dividends are paid on shares of common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Voting
Rights. </I>Except as otherwise provided in the certificate of designation or as otherwise required by law, the Preferred Stock has no
voting rights.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Liquidation
Preference<B>. </B></I>Upon our liquidation, dissolution or winding-up, whether voluntary or involuntary, holders of Preferred Stock
will be entitled to receive out of our assets, whether capital or surplus, the same amount that a holder of common stock would receive
if the Preferred Stock were fully converted (disregarding for such purpose any conversion limitations under the certificate of designation)
to common stock, which amounts shall be paid pari passu with all holders of common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Redemption
Rights. </I>We are not obligated to redeem or repurchase any shares of Preferred Stock. Shares of Preferred Stock are not otherwise entitled
to any redemption rights, or mandatory sinking fund or analogous provisions.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Warrants
Included in Units Issuable in the Rights Offering</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Warrants to be issued as a part of this Rights Offering will be designated as our &ldquo;Series 2&rdquo; warrants. These Warrants will
be separately transferable following their issuance and through their expiration five years from the date of issuance. Each Warrant will
entitle the holder to purchase one share of our common stock at an exercise price of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share from the date of issuance through its
expiration. There is no public trading market for the Warrants and they will not be listed for trading on Nasdaq or any other securities
exchange or market. The common stock underlying the Warrants, upon issuance, will also be traded on Nasdaq under the symbol &ldquo;SINT.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">All
Warrants that are purchased in the Rights Offering as part of the Units will be issued in book-entry, or uncertificated, form meaning
that you will receive a DRS account statement from our transfer agent reflecting ownership of Warrants if you are a holder of record.
The Subscription Agent will arrange for the issuance of the Warrants as soon as practicable after the closing, which will occur as soon
as practicable after the Rights Offering has expired but which may occur up to five business days thereafter. At closing, all prorating
calculations and reductions contemplated by the terms of the Rights Offering will have been effected and payment to us for the subscribed-for
Units will have cleared. If you hold your shares of common stock in the name of a bank, broker, dealer, or other nominee, DTC will credit
your account with your nominee with the Warrants you purchased in the Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I></I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Exercisability</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
Warrant will be exercisable at any time and will expire five years from the date of issuance. The Warrants will be exercisable, at the
option of each holder, in whole or in part by delivering to us a duly executed exercise notice and payment in full for the number of
shares of our common stock purchased upon such exercise, except in the case of a cashless exercise as discussed below. The number of
shares of common stock issuable upon exercise of the Warrants is subject to adjustment in certain circumstances, including a stock split
of, stock dividend on, or a subdivision, combination or recapitalization of the common stock. If we effect a merger, consolidation, sale
of substantially all of our assets, or other similar transaction, then, upon any subsequent exercise of a Warrants, the Warrant holder
will have the right to receive any shares of the acquiring corporation or other consideration it would have been entitled to receive
if it had been a holder of the number of shares of common stock then issuable upon exercise in full of the Warrant.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Cashless
Exercise</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
at any time there is no effective registration statement registering, or the prospectus contained therein is not available for issuance
of, the shares issuable upon exercise of the warrant, the holder may exercise the warrant on a cashless basis. When exercised on a cashless
basis, a portion of the warrant is cancelled in payment of the purchase price payable in respect of the number of shares of our common
stock purchasable upon such exercise.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Exercise
Price</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
warrant represents the right to purchase one share of common stock at an exercise price of $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; per share. In addition, the exercise price
per share is subject to adjustment for stock dividends, distributions, subdivisions, combinations, or reclassifications, and for certain
dilutive issuances. Subject to limited exceptions, a holder of warrants will not have the right to exercise any portion of the warrant
to the extent that, after giving effect to the exercise, the holder, together with its affiliates, and any other person acting as a group
together with the holder or any of its affiliates, would beneficially own in excess of 4.99% of the number of shares of our common stock
outstanding immediately after giving effect to its exercise. The holder, upon notice to us, may increase or decrease the beneficial ownership
limitation provisions of the warrant, provided that in no event shall the limitation exceed 9.99% of the number of shares of our common
stock outstanding immediately after giving effect to the exercise of the warrant.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Transferability</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to applicable laws and restrictions, a holder may transfer a warrant upon surrender of the warrant to us with a completed and signed
assignment in the form attached to the warrant. The transferring holder will be responsible for any tax that liability that may arise
as a result of the transfer.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>No
Market</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
is no public trading market for the Warrants and they will not be listed for trading on Nasdaq or any other securities exchange or market.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Rights
as Stockholder</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Except
as set forth in the Warrant, the holder of a Warrant, solely in such holder&rsquo;s capacity as a holder of a Warrant, will not be entitled
to vote, to receive dividends, or to any of the other rights of our stockholders.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Amendments
and Waivers</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
provisions of each Warrant may be modified or amended or the provisions thereof waived with the written consent of us and the holder.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Warrants will be issued pursuant to a warrant agent agreement by and between us and America Stock Transfer &amp; Trust Company, the warrant
agent.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Effects
of Anti-Takeover Provisions of Our Restated Certificate of Incorporation, Our Restated Bylaws and Delaware Law</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
provisions of (1) Delaware law, (2) our Restated Certificate of Incorporation and (3) our Restated Bylaws discussed below could discourage
or make it more difficult to prevail in a proxy contest or effect other change in our management or the acquisition of control by a holder
of a substantial amount of our voting stock. It is possible that these provisions could make it more difficult to accomplish, or could
deter, transactions that stockholders may otherwise consider to be in their best interests or our best interests. These provisions are
intended to enhance the likelihood of continuity and stability in the composition of our board of directors and in the policies formulated
by the board of directors and to discourage certain types of transactions that may involve an actual or threatened change in control
of our company. These provisions are designed to reduce our vulnerability to an unsolicited acquisition proposal. These provisions also
are intended to discourage certain tactics that may be used in proxy fights. These provisions also may have the effect of preventing
changes in our management.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Delaware
Statutory Business Combinations Provision. </I>We are subject to the anti-takeover provisions of Section 203 of the Delaware General
Corporation Law. In general, Section 203 prohibits a publicly-held Delaware corporation from engaging in a &ldquo;business combination&rdquo;
with an &ldquo;interested stockholder&rdquo; for a period of three years after the date of the transaction in which the person became
an interested stockholder, unless the business combination is, or the transaction in which the person became an interested stockholder
was, approved in a prescribed manner or another prescribed exception applies. For purposes of Section 203, a &ldquo;business combination&rdquo;
is defined broadly to include a merger, asset sale or other transaction resulting in a financial benefit to the interested stockholder,
and, subject to certain exceptions, an &ldquo;interested stockholder&rdquo; is a person who, together with his or her affiliates and
associates, owns (or within three years prior, did own) 15% or more of the corporation&rsquo;s voting stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Classified
Board of Directors; Appointment of Directors to Fill Vacancies; Removal of Directors for Cause. </I>Our Restated Certificate of Incorporation
provides that our board of directors will be divided into three classes as nearly equal in number as possible. Each year the stockholders
will elect the members of one of the three classes to a three-year term of office. All directors elected to our classified board of directors
will serve until the election and qualification of their respective successors or their earlier resignation or removal. The board of
directors is authorized to create new directorships and to fill any positions so created and is permitted to specify the class to which
any new position is assigned. The person filling any of these positions would serve for the term applicable to that class. The board
of directors (or its remaining members, even if less than a quorum) is also empowered to fill vacancies on the board of directors occurring
for any reason for the remainder of the term of the class of directors in which the vacancy occurred. Members of the board of directors
may only be removed for cause and only by the affirmative vote of holders of at least 80% of our outstanding voting stock. These provisions
are likely to increase the time required for stockholders to change the composition of the board of directors. For example, in general,
at least two annual meetings will be necessary for stockholders to effect a change in a majority of the members of the board of directors.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Authorization
of Blank Check Preferred Stock. </I>Our Restated Certificate of Incorporation provides that our board of directors is authorized to issue,
without stockholder approval, blank check preferred stock. Blank check preferred stock can operate as a defensive measure known as a
&ldquo;poison pill&rdquo; by diluting the stock ownership of a potential hostile acquirer to prevent an acquisition that is not approved
by our board of directors.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Advance
Notice Provisions for Stockholder Proposals and Stockholder Nominations of Directors</I>. Our Restated Bylaws provide that, for nominations
to the board of directors or for other business to be properly brought by a stockholder before a meeting of stockholders, the stockholder
must first have given timely notice of the proposal in writing to our Secretary. For an annual meeting, a stockholder&rsquo;s notice
generally must be delivered not less than 90 days nor more than 120 days prior to the anniversary of the mailing date of the proxy statement
for the previous year&rsquo;s annual meeting. For a special meeting, the notice must generally be delivered no less than 60 days nor
more than 90 days prior to the special meeting or ten days following the day on which public announcement of the meeting is first made.
Detailed requirements as to the form of the notice and information required in the notice are specified in our Restated Bylaws. If it
is determined that business was not properly brought before a meeting in accordance with our bylaw provisions, this business will not
be conducted at the meeting.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Special
Meetings of Stockholders. </I>Special meetings of the stockholders may be called only by our board of directors pursuant to a resolution
adopted by a majority of the total number of directors.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>No
Stockholder Action by Written Consent. </I>Our Restated Certificate of Incorporation does not permit our stockholders to act by written
consent. As a result, any action to be effected by our stockholders must be effected at a duly called annual or special meeting of the
stockholders.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Super-Majority
Stockholder Vote required for Certain Actions. </I>The Delaware General Corporation Law provides generally that the affirmative vote
of a majority of the shares entitled to vote on any matter is required to amend a corporation&rsquo;s certificate of incorporation or
bylaws, unless the corporation&rsquo;s certificate of incorporation or bylaws, as the case may be, requires a greater percentage. Our
Restated Certificate of Incorporation requires the affirmative vote of the holders of at least 80% of our outstanding voting stock to
amend or repeal any of the provisions discussed in this section of this prospectus entitled &ldquo;Effect of Anti-Takeover Provisions
of Our Restated Certificate of Incorporation, Our Restated Bylaws and Delaware Law&rdquo; or to reduce the number of authorized shares
of common stock or preferred stock. This 80% stockholder vote would be in addition to any separate class vote that might in the future
be required pursuant to the terms of any preferred stock that might then be outstanding. An 80% vote is also required for any amendment
to, or repeal of, our Restated Bylaws by the stockholders. Our Restated Bylaws may be amended or repealed by a simple majority vote of
the board of directors.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Potential
Effects of Authorized but Unissued Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have shares of common stock and preferred stock available for future issuance without stockholder approval. We may utilize these additional
shares for a variety of corporate purposes, including future public offerings to raise additional capital, to facilitate corporate acquisitions
or payment as a dividend on the capital stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
existence of unissued and unreserved common stock and preferred stock may enable our board of directors to issue shares to persons friendly
to current management or to issue preferred stock with terms that could render more difficult or discourage a third-party attempt to
obtain control of us by means of a merger, tender offer, proxy contest or otherwise, thereby protecting the continuity of our management.
In addition, the board of directors has the discretion to determine designations, rights, preferences, privileges and restrictions, including
voting rights, dividend rights, conversion rights, redemption privileges and liquidation preferences of each series of preferred stock,
all to the fullest extent permissible under the Delaware General Corporation Law and subject to any limitations set forth in our certificate
of incorporation. The purpose of authorizing the board of directors to issue preferred stock and to determine the rights and preferences
applicable to such preferred stock is to eliminate delays associated with a stockholder vote on specific issuances. The issuance of preferred
stock, while providing desirable flexibility in connection with possible financings, acquisitions and other corporate purposes, could
have the effect of making it more difficult for a third-party to acquire, or could discourage a third-party from acquiring, a majority
of our outstanding voting stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Transfer
Agent and Warrant Agent</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
transfer agent and registrar for our common stock and the warrant agent for the Warrants is American Stock Transfer &amp; Trust Company,
LLC. The transfer agent and the registrar&rsquo;s address is 59 Maiden Lane, New York, New York 10038.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_014"></A>PLAN
OF DISTRIBUTION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Promptly
following the effective date of the registration statement of which this prospectus form is a part, we will distribute the Subscription
Rights, Rights Certificates and copies of this prospectus to the holders of our common stock, Series B Preferred Stock, Series C Preferred
Stock, and Participating Warrants on the Record Date. Subscription Rights holders who wish to exercise their Subscription Rights and
purchase Units must complete the Subscription Rights Certificate and return it with payment for the shares to the Subscription Agent
at the following address:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 50%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>By
    mail:</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 49%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>By
    hand or overnight courier:</I></FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you have any questions, you should contact our Information Agent for the Rights Offering: D.F. King &amp; Co, Inc., toll free at ______________
or by mail at ______________________________________.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Other
than as described in this prospectus, we do not know of any existing agreements between any stockholder, broker, dealer, underwriter
or agent relating to the sale or distribution of the underlying securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Maxim
Group LLC will act as dealer-manager for the Rights Offering. In such capacity, the dealer-manager will provide marketing assistance
and financial advice (including determining the Subscription Price and the structure of the Rights Offering) to us in connection with
this offering and will solicit the exercise of Subscription Rights and participation in the Over-Subscription Privilege. The dealer-manager
will provide us with updated investor feedback and recommendations on pricing and structure through to the end of the subscription period.
The dealer- manager is not underwriting or placing any of the Subscription Rights or the shares of our Preferred Stock or Warrants being
issued in this offering and do not make any recommendation with respect to such Subscription Rights (including with respect to the exercise
or expiration of such Subscription Rights), shares or Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with this Rights Offering, we have agreed to pay fees to Maxim Group LLC as dealer-manager an aggregate cash fee equal to
7.0% of the gross proceeds received by us directly from exercises of the Subscription Rights. We advanced $20,000 (the &ldquo;Advance&rdquo;)
to Maxim Group LLC as an advance against the expense allowance upon their engagement as dealer-manager and agreed to reimburse
the reasonable fees and expenses of the dealer-manager up to $100,000 (including the Advance). Any portion of the Advance not used for
Maxim&rsquo;s actual out-of-pocket expenses shall be promptly reimbursed to us. Additionally, we agreed to grant to Maxim (or its designated
affiliates) share purchase warrants (the &ldquo;Dealer Warrants&rdquo;) covering a number of shares of our common stock equal to 4.0%
of the common stock issuable upon exercise of the Preferred Stock sold in the Rights Offering. In the event that we engage Ascendiant
Capital Markets, LLC as a financial advisor in connection with the Offering, Maxim agrees that Ascendiant shall be entitled to 15% of
the total fee earned by Maxim under the dealer-management agreement and 15% of the Dealer Warrants issuable upon Closing (i.e., Maxim
will receive 85% of the cash fee and Dealer Warrants, and Ascendiant shall receive 15% of the cash fee and Dealer Warrants). The Dealer
Warrants will be non-exercisable for six (6) months after the date of the Closing and will expire five years after the commencement
of sales of the offering. The Dealer Warrants will be exercisable at a price equal to 110.0% of the conversion price of the Convertible
Preferred. The Warrants shall not be redeemable. The Dealer Warrants may not be sold, transferred, assigned, pledged or hypothecated
for a period of six months following the  commencement of sales of the offering, except that they may be assigned, in whole
or in part, to any officer or partner of Maxim (or to Ascendiant). The Dealer Warrants may be exercised as to all or a lesser number
of shares of our common stock, will contain unlimited &ldquo;piggyback&rdquo; registration rights for a period of five years after the
commencement of sales of the offering at our expense.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Upon
the successful completion of the Rights Offering for gross proceeds of at least six million dollars ($6,000,000), for a period of nine
(9) months from the final Closing, we will grant Maxim Group LLC the right of first refusal to act as lead managing underwriter, lead
book runner or lead placement agent for any and all future public and private equity and any public debt or equity-linked debt offerings.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have also agreed to indemnify the dealer-manager and their respective affiliates against certain liabilities arising under the Securities
Act. The dealer-manager participation in this offering are subject to customary conditions contained in the dealer-manager agreement,
including the receipt by the dealer-manager of an opinion of our counsel. The dealer-manager and their affiliates may provide to us from
time to time in the future in the ordinary course of their business certain financial advisory, investment banking and other services
for which they will be entitled to receive fees.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to certain exceptions, we have agreed not to offer, issue, sell, contract to sell, encumber, grant any option for the sale of or otherwise
dispose of any common shares or other securities convertible into or exercisable or exchangeable for common shares for a period of&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; days after the expiration of this Rights Offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
common stock is listed on the Nasdaq Capital Market, or Nasdaq, under the symbol &ldquo;SINT.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_015"></A>EXPERTS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
consolidated financial statements of SINTX Technologies, Inc., as of December 31, 2021 and 2020, and for each of the years in the two-year
period ended December 31, 2021, have been incorporated by reference herein in reliance on the report of Tanner LLC, an independent registered
public accounting firm (the report on the consolidated financial statements contains an explanatory paragraph regarding the Company&rsquo;s
ability to continue as a going concern), given on the authority of said firm as experts in auditing and accounting.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_016"></A>LEGAL
MATTERS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
validity of the securities offered hereby will be passed upon for us by Dorsey &amp; Whitney LLP, Salt Lake City, Utah. The dealer-manager
is being represented by Ellenoff Grossman &amp; Schole LLP, New York, New York.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Subscription
Rights to Purchase Up to 10,000 Units</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Consisting
of an Aggregate of Up to Shares of Series D Convertible Preferred Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>and
Warrants to Purchase Up to Shares of Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>at
a Subscription Price of $1,000 Per Unit and</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Up
to Shares of Common Stock Issuable upon the Conversion of</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Series
D Convertible Preferred Stock Included in the Units and</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Up
to Shares of Common Stock Issuable upon the Exercise of</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Warrants
Included in the Units</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><IMG SRC="forms-1_001.jpg" ALT="https:||www.sec.gov|Archives|edgar|data|0001269026|000149315222011280|form424b5_001.jpg" STYLE="height: 186px; width: 538px"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PROSPECTUS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-left: auto; margin-right: auto; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Dealer-Manager</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Maxim
Group LLC</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">,
2022</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font-size: 10pt"><TR STYLE="vertical-align: top; text-align: left"><TD STYLE="width: 100%">&nbsp;</TD></TR></TABLE></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PART
II</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>INFORMATION
NOT REQUIRED IN PROSPECTUS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
13. Other Expenses of Issuance and Distribution</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following is a statement of estimated expenses in connection with the issuance and distribution of the securities being registered, excluding
dealer-manager fees. All expenses incurred with respect to the registration of the common stock will be borne by us. All amounts are
estimates except the SEC registration fee and the FINRA filing fee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 80%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-weight: bold">Item</TD><TD STYLE="padding-bottom: 1.5pt; font-weight: bold">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="text-align: center; border-bottom: Black 1.5pt solid; font-weight: bold"><P STYLE="margin-top: 0; margin-bottom: 0">Amount to be</P>
                                                                                <P STYLE="margin-top: 0; margin-bottom: 0">Paid</P></TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 78%; text-align: left">SEC registration fee</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 18%; text-align: right"></TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">FINRA filing fee</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right"></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Printing expenses</TD><TD STYLE="font-size: 11pt">&nbsp;</TD>
    <TD STYLE="font-size: 11pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 11pt; text-align: right">*</TD><TD STYLE="font-size: 11pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Legal fees and expenses</TD><TD STYLE="font-size: 11pt">&nbsp;</TD>
    <TD STYLE="font-size: 11pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 11pt; text-align: right">*</TD><TD STYLE="font-size: 11pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Accounting fees and expenses</TD><TD STYLE="font-size: 11pt">&nbsp;</TD>
    <TD STYLE="font-size: 11pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 11pt; text-align: right">*</TD><TD STYLE="font-size: 11pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Subscription Agent, Information Agent and Warrant Agent Fees and Expenses</TD><TD STYLE="font-size: 11pt">&nbsp;</TD>
    <TD STYLE="font-size: 11pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 11pt; text-align: right">*</TD><TD STYLE="font-size: 11pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="padding-bottom: 1.5pt; text-align: left">Miscellaneous expenses</TD><TD STYLE="padding-bottom: 1.5pt; font-size: 11pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font-size: 11pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1.5pt solid; font-size: 11pt; text-align: right">*</TD><TD STYLE="padding-bottom: 1.5pt; font-size: 11pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="padding-bottom: 2.5pt; font-style: italic">Total</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 2.5pt double; text-align: left">$</TD><TD STYLE="border-bottom: Black 2.5pt double; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="padding-bottom: 2.5pt; text-align: left">&nbsp;</TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*
To be provided by amendment.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
14. Indemnification of Directors and Officers</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
145 of the Delaware General Corporation Law authorizes a court to award, or a corporation&rsquo;s board of directors to grant, indemnity
to directors and officers in terms sufficiently broad to permit such indemnification under certain circumstances for liabilities, including
reimbursement for expenses incurred, arising under the Securities Act.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Registrant&rsquo;s amended certificate of incorporation provides for indemnification of its directors and executive officers to the maximum
extent permitted by the Delaware General Corporation Law, and the Registrant&rsquo;s amended and restated bylaws provide for indemnification
of its directors and executive officers to the maximum extent permitted by the Delaware General Corporation Law.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
addition, the Registrant has entered into indemnification agreements with each of its current directors and executive officers. These
agreements will require the Registrant to indemnify these individuals to the fullest extent permitted under Delaware law against liabilities
that may arise by reason of their service to the Registrant and to advance expenses incurred as a result of any proceeding against them
as to which they could be indemnified. The Registrant also intends to enter into indemnification agreements with its future directors
and executive officers.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
15. Recent Sales of Unregistered Securities.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">None.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
16. Exhibits and Financial Statement Schedules.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: -11.35pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>(a)
Exhibits</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following exhibits are being filed with this Registration Statement:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 9%"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exhibit</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Number</B></FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 35%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exhibit
    Description</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 12%"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Filed
                                            with<BR>
                                            this</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Report</B></FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 19%"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Incorporated
                                            by</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Reference
    herein from</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Form
    or Schedule</B></FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 10%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Filing
    Date</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 10%"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SEC
                                            File/Reg.</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Number</B></FONT></P></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.1#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Dealer Manager Agreement</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.1+</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315218014199/ex2-1.htm" STYLE="-sec-extract: exhibit">Asset Purchase Agreement by and among Amedica Corporation, CTL Corporation and US Spine Inc. dated as of September 5, 2018</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 2.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10/5/18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2+&dagger;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315221017764/ex2-1.htm" STYLE="-sec-extract: exhibit">Asset Purchase Agreement by and among SINTX Technologies, Inc. and B4C, LLC, dated July 20, 2021.</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 2.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7/26/21</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000119312514060952/d677892dex31.htm" STYLE="-sec-extract: exhibit">Restated Certificate of Incorporation of the Registrant</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 3.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2/20/14</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.1.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000126902616000094/a20160122_ex31.htm" STYLE="-sec-extract: exhibit">Certificate of Amendment to the Restated Certificate of Incorporation</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 3.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1/22/16</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.1.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315217013424/ex3-1.htm" STYLE="-sec-extract: exhibit">Certificate of Amendment to the Restated Certificate of Incorporation</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 3.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11/16/17</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.1.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315218006980/ex3-1.htm" STYLE="-sec-extract: exhibit">Certificate of Designation of Series B Preferred Stock</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
8-K (Exhibit 3.1)</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5/15/18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.1.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315218015115/ex3-1.htm" STYLE="-sec-extract: exhibit">Certificate of Amendment to the Restated Certificate of Incorporation</A> </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
8-K (Exhibit 3.1)</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11/02/18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.1.5</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315219011164/ex3-1.htm" STYLE="-sec-extract: exhibit">Certificate of Amendment to the Restated Certificate of Incorporation of SINTX Technologies, Inc.</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
8-K (Exhibit 3.1)</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7/26/19</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.1.6</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220001811/ex3-1.htm" STYLE="-sec-extract: exhibit">Certificate of Designation of Series C Preferred Stock</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 3.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2/07/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.1.7#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Certificate
    of Designation of Series D Preferred Stock</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315221024329/ex3-1.htm" STYLE="-sec-extract: exhibit">Amended and Restated Bylaws of SINTX Technologies, Inc.</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 3.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10/01/21</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000119312514025241/d593074dex41.htm" STYLE="-sec-extract: exhibit">Form of Common Stock Certificate of the Registrant</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amendment
    No. 3 to Form S-1 (Exhibit 4.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1/29/14</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-192232</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000119312513435409/d593074dex410.htm" STYLE="-sec-extract: exhibit">Warrant to Purchase Shares of Series F Convertible Preferred Stock by and between the Registrant and GE Capital Equity Investments, Inc., dated as of December 17, 2012</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    S-1 (Exhibit 4.10)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11/8/13</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-192232</FONT></TD></TR>
</TABLE>

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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000119312513435409/d593074dex411.htm" STYLE="-sec-extract: exhibit">Warrant to Purchase Shares of Series F Convertible Preferred Stock by and between the Registrant and Zions First National Bank, dated as of December 17, 2012</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    S-1 (Exhibit 4.11)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11/8/13</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-192232</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315217008482/ex4-2.htm" STYLE="-sec-extract: exhibit">North Stadium Investments, LLC Warrant to Purchase Common Stock</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 4.2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8/3/17</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.5</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315218006980/ex4-1.htm" STYLE="-sec-extract: exhibit">Common Stock Purchase Warrant</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 4.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5/15/18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.6</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315218005797/ex4-28.htm" STYLE="-sec-extract: exhibit">Form of Warrant Agency Agreement between Amedica Corporation and American Stock Transfer and Trust Company, LLC</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    S-1 (Exhibit 4.28)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4/26/18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-223032</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.7</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220000614/ex4-14.htm" STYLE="-sec-extract: exhibit">Form of Common Stock Warrant</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    S-1/A</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1/15/20
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-234438</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.8</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220001811/ex10-1.htm" STYLE="-sec-extract: exhibit">Form of Warrant Agency Agreement between Amedica Corporation and American Stock Transfer and Trust Company, LLC, dated February 6, 2020</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 10.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2/07/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.9</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220001811/ex4-1.htm" STYLE="-sec-extract: exhibit">Warrant Issued to Maxim Group LLC on February 6, 2020</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 4.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2/07/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>

<TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 9%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 35%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 12%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; width: 19%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 10%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 10%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.10</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220001811/ex4-2.htm" STYLE="-sec-extract: exhibit">Warrant Issued to Ascendiant Capital Markets, LLC on February 6, 2020</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 4.2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2/07/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>

<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.24</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315219003871/ex4-2.htm" STYLE="-sec-extract: exhibit">Form of Indenture</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
S-3 </FONT>(Exhibit 4.2)</P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3/25/19</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-230492</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.25#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Common Stock Warrant</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.26#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Warrant Agency Agreement between Amedica Corporation and American Stock Transfer and Trust Company, LLC</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.27#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Non-Transferrable Subscription Rights Certificate</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.1#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Opinion
    of Dorsey &amp; Whitney LLP</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000119312513435409/d593074dex1010.htm" STYLE="-sec-extract: exhibit">Centrepointe Business Park Lease Agreement Net by and between the Registrant and Centrepointe Properties, LLC, dated as of April 21, 2009</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    S-1 (Exhibit 10.10)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11/8/13</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-192232</FONT></TD></TR>
</TABLE>

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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000119312513435409/d593074dex1011.htm" STYLE="-sec-extract: exhibit">First Addendum to Centrepointe Business Park Lease Agreement Net by and between the Registrant and Centrepointe Properties, LLC, dated as of January 31, 2012</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    S-1 (Exhibit 10.11)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11/8/13</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-192232</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000126902615000008/a20150722_8-kxitem502cocex.htm" STYLE="-sec-extract: exhibit">Form of Change of Control Agreement*</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 10.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7/22/15</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000119312513481248/d593074dex1014.htm" STYLE="-sec-extract: exhibit">Form of Indemnification Agreement by and between the Registrant and its officers and directors</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amendment
                                            No. 2</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">to
    Form S-1 (Exhibit 10.14)</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">12/20/13</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-192232</FONT></TD></TR>

<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 9%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.5</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 35%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315216008645/ex10-2.htm" STYLE="-sec-extract: exhibit">Exchange Agreement dated April 4, 2016, by and among SINTX Corporation and Riverside Merchant Partners, LLC</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 12%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 19%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 10.2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center; width: 10%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5/05/16</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 10%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.6</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315217008482/ex10-1.htm" STYLE="-sec-extract: exhibit">Security Agreement, dated July 28, 2017</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 10.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8/3/17</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>

<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.7</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315218005797/ex10-26.htm" STYLE="-sec-extract: exhibit">Form of Warrant Amendment Agreement</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
S-1 (Exhibit 10.26)</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4/26/18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-223032</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.8</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315219008914/ex10-1.htm" STYLE="-sec-extract: exhibit">Amendment to Centrepointe Business Park Lease Agreement, dated June 7, 2019, between SINTX Technologies, Inc. and Centrepointe Properties, LLC.</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
8-K (Exhibit 10.1)</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6/10/19</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.9</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315218014199/ex10-1.htm" STYLE="-sec-extract: exhibit">Promissory Note issued by CTL Corporation in favor of Amedica Corporation dated as of October 1, 2018.</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
8-K (Exhibit 10.1)</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10/5/18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.10</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315218014199/ex10-2.htm" STYLE="-sec-extract: exhibit">Security Agreement between Amedica Corporation and CTL Corporation dated as of October 1, 2018.</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
8-K (Exhibit 10.2)</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10/5/18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.11</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315218014199/ex10-3.htm" STYLE="-sec-extract: exhibit">Guaranty between Amedica Corporation and Daniel Chon dated as of October 1, 2018.</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
8-K (Exhibit 10.3)</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10/5/18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.12</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315218014199/ex10-4.htm" STYLE="-sec-extract: exhibit">ROFN Security Agreement between Amedica Corporation and CTL Corporation dated as of October 1, 2018.</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">From
8-K (Exhibit 10.4)</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10/5/18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.13</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220007441/ex10-1.htm" STYLE="-sec-extract: exhibit">Promissory Note, dated April 28, 2020 between SINTX Technologies, Inc. and First State Community Bank.</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 10.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4/30/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.14</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220012183/ex99-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form of Share Purchase Agreement</FONT></A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 99.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6/29/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.15</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220012183/ex99-2.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Placement Agency Agreement</FONT></A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 99.2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6/29/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
</TABLE>

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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 9%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.16</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 35%"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220013618/ex99-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form of Share Purchase Agreement</FONT></A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center; width: 12%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 19%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 99.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center; width: 10%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7/20/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 10%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.17</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220013618/ex99-2.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Placement Agency Agreement</FONT></A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 99.2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7/20/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220014885/ex99-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form of Share Purchase Agreement</FONT></A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 99.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8/6/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.19</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220014885/ex99-2.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Placement Agency Agreement</FONT></A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 99.2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8/6/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220018825/ex4-18.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form of Indenture</FONT></A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    S-3 (Exhibit 4.18)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10/2/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">333-249267</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.21</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315221004862/ex10-1.htm" STYLE="-sec-extract: exhibit">Equity Distribution Agreement, dated as of February 25, 2021, by and between SINTX Technologies, Inc. and Maxim Group LLC</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    8-K (Exhibit 10.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2/26/20</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.22</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><A HREF="https://www.sec.gov/Archives/edgar/data/1269026/000149315220013086/def14a.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2020 Equity Incentive Plan</FONT></A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Defn
    14a Proxy Statement</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7/10/2020</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">001-33624</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">21.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="ex21-1.htm">List of Subsidiaries of the Registrant</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">X</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="ex23-1.htm">Consent of Independent Registered Public Accounting Firm, Tanner LLC</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">X</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23.2#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consent
    of Dorsey &amp; Whitney LLP (included in Exhibit 5.1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">24.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#poa_001">Power of Attorney (Signature Block)</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">X</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.1#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Instructions as to Use of Subscription Rights Certificates</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.2#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Letter to Shareholders who are Record Holders</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.3#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Letter to Brokers, Dealers, Banks and Other Nominees</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.4#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Broker Letter to Clients Who are Beneficial Holders</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.5#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Beneficial Owner Election Form</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.6#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Nominee Holder Certification</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.7#</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Form
    of Notice of Important Tax Information</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">107</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="ex107.htm">Filing Fee Table</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">X</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*
Indicates management contract or compensatory plan or arrangement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">#
To be filed by amendment or as an exhibit to a report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended,
and incorporated herein by reference.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">+
Schedules and exhibits to this Exhibit have been omitted pursuant to Item 601(b)(2) of Regulation S-K. The Company agrees to furnish
supplementally a copy of any omitted schedule or exhibit to the SEC upon request.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&dagger;
A portion of this Exhibit has been omitted as it contains information that (i) is not material and (ii) would be competitively harmful
if publicly disclosed.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I></I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>(b)
Financial Statement Schedules</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: -11.35pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 35.45pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">All
schedules have been omitted because either they are not required, are not applicable or the information is otherwise set forth in the
financial statements and related notes thereto.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Item
17. Undertakings</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    undersigned registrant hereby undertakes:</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
    file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
    include any prospectus required by section 10(a)(3) of the Securities Act of 1933;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(ii)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
    reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent
    post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set
    forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if
    the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end
    of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b)
    if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set
    forth in the &ldquo;Calculation of Registration Fee&rdquo; table in the effective registration statement; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iii)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
    include any material information with respect to the plan of distribution not previously disclosed in the registration statement
    or any material change to such information in the registration statement.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Provided</I>,
    <I>however</I>, that paragraphs (a)(1)(i), (ii) and (iii) above do not apply if the information required to be included in a post-effective
    amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to section
    13 or section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in this registration statement.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">That,
    for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed
    to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall
    be deemed to be the initial bona fide offering thereof.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
    remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the
    termination of the offering.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">That,
    for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution
    of the securities: The undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant
    to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities
    are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller
    to the purchaser and will be considered to offer or sell such securities to such purchaser:</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
    preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule
    424;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(ii)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
    free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by
    the undersigned registrant;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iii)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant
    or its securities provided by or on behalf of the undersigned registrant; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iv)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
    other communication that is an offer in the offering made by the undersigned registrant to the purchaser.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing
    of the registrant&rsquo;s annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable,
    each filing of an employee benefit plan&rsquo;s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that
    is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities
    offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Insofar
    as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling
    persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion
    of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore,
    unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of
    expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action,
    suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered,
    the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court
    of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and
    will be governed by the final adjudication of such issue.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    undersigned registrant hereby undertakes that:</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
    purposes of determining any liability under the Securities Act of 1933, the information omitted from the form of prospectus filed
    as part of this registration statement in reliance upon Rule 430A and contained in a form of prospectus filed by the registrant pursuant
    to Rule 424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be part of this registration statement as of the time
    it was declared effective; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
    the purpose of determining any liability under the Securities Act of 1933, each post-effective amendment that contains a form of
    prospectus shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such
    securities at that time shall be deemed to be the initial bona fide offering thereof.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B></B></FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SIGNATURES</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the requirements of the Securities Act of 1933, the registrant has duly caused this registration statement to be signed on its behalf
by the undersigned, thereunto duly authorized, in Salt Lake City, Utah on July 8, 2022.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SINTX
    TECHNOLOGIES, INC.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 3%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 47%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    B. Sonny Bal</I></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B.
    Sonny Bal, M.D.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
    Executive Officer and President</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We,
the undersigned directors and officers of Sintx Technologies, Inc. (the &ldquo;Company&rdquo;), hereby severally constitute and appoint
B. Sonny Bal, MD as our true and lawful attorney, with full power to him to sign for us and in our names in the capacities indicated
below, the registration statement on Form S-1 filed herewith, and any and all pre-effective and post-effective amendments to said registration
statement, and any registration statement filed pursuant to Rule 462(b) under the Securities Act of 1933, as amended, in connection with
the registration under the Securities Act of 1933, as amended, of equity securities of the Company, and to file or cause to be filed
the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting
unto said attorney full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection
therewith, as fully to all intents and purposes as each of us might or could do in person, and hereby ratifying and confirming all that
said attorney or his substitute or substitutes, shall do or cause to be done by virtue of this Power of Attorney.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="poa_001"></A>Pursuant
to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities
and on the dates indicated:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; white-space: nowrap; width: 32%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SIGNATURE</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; white-space: nowrap; width: 46%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>TITLE</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; white-space: nowrap; width: 18%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>DATE</B></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    B. Sonny Bal</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July
    8, 2022</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B.
    Sonny Bal, M.D.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
    Executive Officer and Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Principal
    Executive Officer and Principal Financial Officer)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    David W. Truetzel</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July
    8, 2022</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">David
    W. Truetzel</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Jeffrey S. White</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July
    8, 2022</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Jeffrey
    S. White</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Eric. A Stookey</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July
    8, 2022</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Eric
    A. Stookey</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Marc Froimson</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">July
8, 2022</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Marc
    Froimson</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; white-space: nowrap; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  </TABLE>
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[{"type": "S-1", "sequence": "1", "filename": "forms-1.htm", "secsgml_size_bytes": 1028963}]
{"company-data": {"conformed-name": "Sintx Technologies, Inc.", "cik": "0001269026", "assigned-sic": "3841", "irs-number": "000000000", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-1", "act": "33", "file-number": "333-266070", "film-number": "221074869"}, "business-address": {"street1": "1885 WEST 2100 STREET", "city": "SALT LAKE CITY", "state": "UT", "zip": "84119", "phone": "801-839-3516"}, "mail-address": {"street1": "1885 WEST 2100 STREET", "city": "SALT LAKE CITY", "state": "UT", "zip": "84119"}, "former-company": [{"former-conformed-name": "AMEDICA Corp", "date-changed": "20121231"}, {"former-conformed-name": "AMEDICA CORP", "date-changed": "20031104"}]}
As
filed with the Securities and Exchange Commission on July 8, 2022
Registration
No. 333-____________
UNITED
STATES
SECURITIES
AND EXCHANGE COMMISSION
Washington,
D.C. 20549
FORM
S-1
REGISTRATION
STATEMENT UNDER
THE
SECURITIES ACT OF 1933
SINTX
Technologies, Inc.
(Exact
name of registrant as specified in its charter)
Delaware
3841
84-1375299
(State
    or other jurisdiction of
incorporation or organization)
(Primary
    Standard Industrial
Classification Code Number)
(I.R.S.
    Employer
Identification Number)
1885
West 2100 South
Salt
Lake City, UT, 84119
(801)
839-3500
(Address,
including zip code, and telephone number,
including area code, of registrant's principal executive offices)
B.
Sonny Bal, MD
President
and Chief Executive Officer
SINTX
Technologies, Inc.
1885
West 2100 South
Salt
Lake City, UT, 84119
(801)
839-3500
(Name,
address, including zip code, and telephone number,
including area code, of agent for service)
Copies
to:
David
    F. Marx
Daniel P. Lyman
Dorsey & Whitney LLP
111 South Main Street, Suite 2100
Salt Lake City, Utah 84111
Barry
    L. Grossman
Sarah E. Williams
Ellenoff Grossman & Schole LLP
1345 Avenue of the Americas, 11th Floor
New York, NY 10105
Approximate
date of commencement of proposed sale to the public
: As soon as practicable after this registration statement becomes effective.
If
any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the
Securities Act of 1933, check the following box. ☒
If
this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following
box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.
☐
If
this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the
Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐
If
this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the
Securities Act registration statement number of the earlier effective registration statement for the same offering.
☐
Indicate
by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting
company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer,"
"smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act:
Large
    accelerated filer
☐
Accelerated
    filer
☐
Non-accelerated
    filer
☒
Smaller
    reporting company
☒
Emerging
    growth company
☐
If
an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying
with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐
The
Registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the
registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective
in accordance with Section 8(a) of the Act or until the registration statement shall become effective on such date as the Commission,
acting pursuant to said Section 8(a), may determine.
The
information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement
filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and is not soliciting
an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.
PRELIMINARY
PROSPECTUS, SUBJECT TO COMPLETION, DATED JULY 8, 2022
SINTX
TECHNOLOGIES, INC.
Subscription
Rights to Purchase Up to 10,000 Units
Consisting
of an Aggregate of Up to Shares of Series D Convertible Preferred Stock
and
Warrants to Purchase Up to Shares of Common Stock
at
a Subscription Price of $1,000 Per Unit and
Up
to Shares of Common Stock Issuable upon the Conversion of
Series
D Convertible Preferred Stock Included in the Units and
Up
to Shares of Common Stock Issuable upon the Exercise of
Warrants
Included in the Units
This
prospectus relates to our distribution to holders of our common stock, Series B Preferred Stock, Series C Preferred Stock and
certain outstanding warrants, which we refer to as the Participating Warrants, at no charge, non-transferable subscription rights to
purchase units. Each unit, which we refer to as a Unit, consists of one share of Series D Convertible Preferred Stock, which we
refer to as the Preferred Stock, and            warrants to purchase common stock,
which we refer to as the Warrants. Each share of Preferred Stock is convertible, at the option of the holder at any time, into a
number of shares of our common stock equal to the quotient of the stated value of the Preferred Stock ($1,000) divided by the
Conversion Price (initially, $      per share). Each Warrant will be exercisable for one share of our common stock at an exercise price
of $          per share from the date of issuance through its expiration five years from the date of issuance. We refer to the offering that
is the subject of this prospectus as the Rights Offering. In the Rights Offering, you will receive one subscription right for every
share of common stock (including each share of common stock issuable upon conversion of Series B Preferred Stock, Series C Preferred
Stock, and exercise of Participating Warrants) owned at 5:00 p.m., Eastern Time, on              , 2022, the record date of the Rights Offering,
or the Record Date. The Preferred Stock and the Warrants comprising the Units will separate upon the expiration of the Rights
Offering and will be issued separately but may only be purchased as a Unit, and the Units will not trade as a separate security. The
subscription rights will not be tradable. Holders as of the Record Date of Series B Preferred Stock, Series C Preferred Stock, and
Participating Warrants, will also receive subscription rights pursuant to the terms of those Series B Preferred Stock, Series C
Preferred Stock, and Participating Warrants.
Each
subscription right will entitle you to purchase one Unit, which we refer to as the Basic Subscription Right, at a subscription price
per Unit of $1,000, which we refer to as the Subscription Price. If you exercise your Basic Subscription Rights in full, and any portion
of the Units remain available under the Rights Offering, you will be entitled to an over-subscription privilege to purchase a portion
of the unsubscribed Units at the Subscription Price, subject to proration and ownership limitations, which we refer to as the Over-Subscription
Privilege. Each subscription right consists of a Basic Subscription Right and an Over-Subscription Privilege, which we refer to as the
Subscription Right.
The
Subscription Rights will expire if they are not exercised by 5:00 p.m., Eastern Time, on         , 2022, unless the Rights Offering is extended
or earlier terminated by us. If we elect to extend the Rights Offering, we will issue a press release announcing the extension no later
than 9:00 a.m., Eastern Time, on the next business day after the most recently announced expiration date of the Rights Offering. We may
extend the Rights Offering for additional periods in our sole discretion for any reason up to an additional 45 days. Once made, all exercises
of Subscription Rights are irrevocable.
We
have not entered into any standby purchase agreement or other similar arrangement in connection with the Rights Offering. The Rights
Offering is being conducted on a best-efforts basis and there is no minimum amount of proceeds necessary to be received in order for
us to close the Rights Offering.
We
have engaged Maxim Group LLC to act as dealer-manager in the Rights Offering.
Investing
in our securities involves a high degree of risk. See "Risk Factors" beginning on page 13 of this prospectus. You should
carefully consider these risk factors, as well as the information contained in this prospectus, before you invest.
Our
stock transfer agent, American Stock Transfer & Trust Company, LLC, will serve as the Subscription Agent and D.F. King & Co.,
Inc., will serve as Information Agent for the Rights Offering. The Subscription Agent will hold the funds we receive from subscribers
until we complete, abandon or terminate the Rights Offering. If you want to participate in this Rights Offering and you are the record
holder of your shares, we recommend that you submit your subscription documents to the Subscription Agent well before the deadline. If
you want to participate in this Rights Offering and you hold shares of our common stock, Series B Preferred Stock, Series C Preferred
Stock, or Participating Warrants through your broker, dealer, bank or other nominee, you should promptly contact your broker, dealer,
bank or other nominee and submit your subscription documents in accordance with the instructions and within the time period provided
by your broker, dealer, bank or other nominee. For a detailed discussion, see "The Rights Offering - The Subscription Rights."
Our
board of directors reserves the right to terminate the Rights Offering for any reason any time before the expiration of the Rights Offering.
If we terminate the Rights Offering, all subscription payments received will be returned within 10 business days, without interest or
deduction. We expect the Rights Offering to expire on or about           , 2022, subject to our right to extend the Rights Offering as described
above, and that we would close on subscriptions within five business days of such date.
Our
common stock is listed on the Nasdaq Capital Market, or Nasdaq, under the symbol "SINT." On July 7, 2022, the last
reported sale price of our common stock was $0.44 per share. There is no public trading market for the Preferred Stock or the
Warrants and they will not be listed for trading on Nasdaq or any other securities exchange or market. The Subscription Rights are non-transferrable
and will not be listed for trading on Nasdaq or any other securities exchange or market. You are urged to obtain a current price quote
for our common stock before exercising your Subscription Rights.
Per
    Unit
Total(2)
Subscription
    price
$
1,000
$
10,000,000
Dealer-Manager
    fees and expenses (1)
$
$
Proceeds
    to us, before expenses
$
$
(1)
In
    connection with this Rights Offering, we have agreed to pay to Maxim Group LLC as the dealer-manager an aggregate cash fee equal
    to 7.0% of the gross proceeds received by us directly from exercises of the Subscription Rights. We agreed to reimburse expenses
    of Maxim Group LLC in the Rights Offering, up to $100,000. We have also agreed to issue Maxim Group LLC a warrant covering a number
    of shares of our common stock equal to 4.0% of the total number of shares of common stock issuable upon the conversion of the Preferred
    Stock issued in the Rights Offering. See "Plan of Distribution."
(2)
Assumes
    the Rights Offering is fully subscribed but excludes proceeds from the exercise of Warrants included within the Units.
Our
board of directors is making no recommendation regarding your exercise of the Subscription Rights. You should carefully consider whether
to exercise your Subscription Rights before the expiration date. You may not revoke or revise any exercises of Subscription Rights once
made.
Neither
the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed
upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.
Dealer-Manager
Maxim
Group LLC
The
date of this Prospectus is           , 2022
TABLE
OF CONTENTS
About This Prospectus
1
Prospectus Summary
2
Incorporation of Certain Information by Reference
8
Where You Can Find More Information
9
Questions and Answers Relating to the Rights Offering
10
Risk Factors
18
Forward-Looking Statements
23
Use of Proceeds
24
Dilution
25
Market Price of our Common Stock and Related Stockholder Matters
26
The Rights Offering
27
Material U.S. Federal Income Tax Consequences
35
Description of Securities
45
Plan of Distribution
60
Experts
61
Legal Matters
61
ABOUT
THIS PROSPECTUS
The
registration statement of which this prospectus forms a part that we have filed with the Securities and Exchange Commission, or SEC,
includes exhibits that provide more detail of the matters discussed in this prospectus. You should read this prospectus and the related
exhibits filed with the SEC, together with the additional information described under the headings "Where You Can Find More Information"
and "Incorporation by Reference" before making your investment decision.
You
should rely only on the information provided in this prospectus or in a prospectus supplement or any free writing prospectuses or amendments
thereto. Neither we nor the deal-manager have authorized anyone else to provide you with different information. We do not, and the dealer-manager
and its affiliates do not, take any responsibility for, and can provide no assurance as to the reliability of, any information that others
may provide to you. If anyone provides you with different or inconsistent information, you should not rely on it. You should assume that
the information in this prospectus is accurate only as of the date hereof, regardless of the time of delivery of this prospectus or any
sale of securities. Our business, financial condition, results of operations and prospects may have changed since that date.
We
are not, and the dealer-manager is not, offering to sell or seeking offers to purchase these securities in any jurisdiction where the
offer or sale is not permitted. We and the dealer-manager have not done anything that would permit this offering or possession or distribution
of this prospectus in any jurisdiction where action for that purpose is required, other than in the United States. Persons outside the
United States who come into possession of this prospectus must inform themselves about, and observe any restrictions relating to, the
offering of the securities as to distribution of the prospectus outside of the United States.
Unless
the context otherwise requires, references in this prospectus to "SINTX," "the Company," "we," "us"
and "our" refer to SINTX Technologies, Inc. and our subsidiaries. Solely for convenience, trademarks and tradenames referred
to in this prospectus may appear without the ® or ™ symbols, but such references are not intended to indicate in any way that
we will not assert, to the fullest extent under applicable law, our rights, or that the applicable owner will not assert its rights,
to these trademarks and tradenames.
1
PROSPECTUS
SUMMARY
This
summary contains basic information about us and this offering. Because it is a summary, it does not contain all of the information that
you should consider before investing. Before you decide to invest in our Units, you should read this entire prospectus carefully, including
the section entitled "Risk Factors" and any information incorporated by reference herein.
Company
Overview
SINTX
Technologies is a 25-year-old advanced ceramics company formed in December 1996, focused on providing solutions in a variety of biomedical,
industrial, and antipathogenic applications. We have grown from focusing primarily on the research, development and commercialization
of medical devices manufactured with silicon nitride to becoming an advanced ceramics company engaged in diverse fields, including biomedical,
industrial and antipathogenic applications. This diversification enables us to focus on our core competencies which are the manufacturing,
research, and development of products comprised from advanced ceramic materials for external partners. We seek to connect with new customers,
partners and manufacturers to help them realize the goal of leveraging our expertise in advanced ceramics to create new, innovative products
across these sectors.
SINTX
Core Business
Biomedical
Applications:
Since its inception, SINTX has been focused on medical grade silicon nitride. SINTX biomedical products have been shown
to be biocompatible, bioactive, antipathogenic, and to have superb bone affinity. Spinal implants made from SINTX silicon nitride have
been successfully implanted in humans since 2008 in the US, Europe, Brazil, and Taiwan. This established use, along with its inherent
resistance to bacterial adhesion and bone affinity suggests that it may also be suitable in other fusion device applications such as
hip implants foot wedges and dental implants. Bacterial infection of any biomaterial implants is always a concern. SINTX silicon nitride
has been shown to be resistant to bacterial colonization and biofilm formation, making it antibacterial. SINTX silicon nitride products
can be polished to a smooth and wear-resistant surface for articulating applications, such as bearings for hip and knee replacements.
We
believe that silicon nitride has a superb combination of properties that make it suited for long-term human implantation. Other biomaterials
are based on bone grafts, metal alloys, and polymers- all of which have well-known practical limitations and disadvantages. In contrast,
silicon nitride has a legacy of success in the most demanding and extreme industrial environments. As a human implant material, silicon
nitride offers bone ingrowth, resistance to bacterial and viral infection, ease of diagnostic imaging, resistance to corrosion, and superior
strength and fracture resistance, all of which claims are validated in our large and growing inventory of peer-reviewed, published literature
reports. We believe that our versatile silicon nitride manufacturing expertise positions us favorably to introduce new and innovative
devices in the medical and non-medical fields.
Industrial
Applications:
It is our belief that our silicon nitride has the best combination of mechanical,
thermal, and electrical properties of any technical ceramic material. It is a high-performance technical ceramic with high strength,
toughness, and hardness, and is extremely resistant to thermal shock and impact. It is also an electrically insulating ceramic material.
Typically, it is used in applications where high load-bearing capacity, thermal stability, and wear resistance are required. We have
obtained AS9100D certification and ITAR registration to facilitate entry into the aerospace and protective armor market.
We
recently entered the ceramic armor market through the purchase of assets from B4C, LLC and a technology partnership with Precision Ceramics
USA. We will develop and manufacture high-performance ceramics for personnel, aircraft, and vehicle armor including a 100% Boron Carbide
material for ultimate lightweight performance in ballistic applications, and a composite material made of Boron Carbide and Silicon Carbide
for exceptional multi-hit performance against ballistic threats. We have signed a 10-year lease at a building near our headquarters in
Salt Lake City, Utah to house development and manufacturing activities for SINTX Armor, and which we expect to be operational by August
2022.
2
Antipathogenic
Applications:
There is a global need to improve protection against pathogens in everyday life. SINTX believes that by incorporating
its unique composition of silicon nitride antipathogenic powder into products such as face masks, filters, and wound care devices, it
is possible to manufacture surfaces that inactivate pathogens, thereby limiting the spread of infection and disease. The discovery in
2020 that SINTX silicon nitride inactivates S ARS-CoV-2, the virus which causes the disease COVID-19, has opened new markets and applications
for our material and we have refocused many of our resources on these opportunities.
SINTX
presently manufactures advanced ceramic powders and components in its manufacturing facilities based in Salt Lake City, Utah.
Our
Strategy
Our
goal is to become a leading advanced ceramics company. Key elements of our strategy to achieve this goal are the following:
●
Develop
    new products with anti-pathogenic properties, including inactivation of the SARS-CoV-2 virus, utilizing our silicon nitride technology.
We have conducted multiple tests over the last nine years which have identified and verified the antipathogenic properties of
    our silicon nitride powders, fully dense components, and silicon nitride-containing composites. Our research has explored the fundamental
    mechanisms responsible for these antipathogenic properties with the objective of developing commercial products and revenue from
    them. We have several partnerships exploring opportunities in face masks, filters, wound care, and coatings.
●
Develop
    additional commercial opportunities outside of the medical device market.
We have pursued the development of non-medical uses
    for our silicon nitride since selling the retail spine business in 2018. In 2019, we became ITAR-registered and obtained AS9100D
    certification of our quality management system. We have hired experienced business development employees to identify new markets
    and applications for our materials and develop commercial relationships. We made the first shipments of non-medical products in our
    history in 2020. These were primarily prototype orders, and we expect some of these to transition into regular production orders.
    The launch of SINTX Armor will generate revenue from new products. The potential use of our silicon nitride in antipathogenic applications
    has also opened up the potential to enter many new markets.
●
Develop
    new silicon nitride manufacturing technologies.
Our current manufacturing process has allowed us to successfully produce spinal
    implants for over 10 years. We have made advancements in our processes – including the purchase of new manufacturing equipment
    – which we have leveraged to develop new porous and textured implants. In 2021, SINTX purchased new equipment for its research
    and development team to develop new composite products of silicon nitride with rigid polymers and fabrics.
●
Apply
    our silicon nitride technology platform to new medical opportunities.
We believe our biomaterial expertise, flexible manufacturing
    process, and strong intellectual property will allow us to transition currently available medical device products made of inferior
    biomaterials and manufacture them using silicon nitride and our technology platform to improve their characteristics. We are seeking
    partnerships to utilize our capabilities and manufacture products for medical OEM and private label partnerships. We see specific
    opportunities in markets such as foot and ankle, dental, maxillofacial, and arthroplasty.
Intellectual
Property
We
rely on a combination of patents, trademarks, trade secrets, nondisclosure agreements, proprietary information ownership agreements and
other intellectual property measures to protect our intellectual property rights. We believe that to have a competitive advantage, we
must continue to develop and maintain the proprietary aspects of our technologies.
We
have fourteen issued U.S. patents, one foreign patent, eighteen pending U.S. non-provisional patent applications, one pending U.S. provisional
patent application, thirty-three pending foreign applications and eleven pending PCT patent applications. Our first issued patent expired
in 2016, with the last of these patents expiring in 2039.
We
have seven U.S. patents directed to articulating implants using our high-strength, high toughness doped silicon nitride solid ceramic.
The issued patents, which include US 6,881,229; US 7,666,229; US 7,780,738; US 8,123,812; US 8,133,284; US 9,051,639; and US 9,517,136
begin to expire in June 2022.
3
We
also have two U.S. patents related to our CSC technology that are directed to implants that have both a dense load-bearing, or cortical,
component and a porous, or cancellous, component, together with a surface coating. These issued patents, US 8,133,284 and US 9,649,197
will expire in June 2022 and 2035, respectively.
In
addition, U.S. Patent No. 10,806,831 directed to antibacterial implants and U.S. Patent No. 11,191,787 directed to antipathogenic devices
were recently issued which will expire in 2037 and 2039, respectively.
With
respect to PCT patent application serial no. PCT/US2018/014781 directed to antibacterial biomedical implants, we entered the national
stage in Europe, Australia, Brazil, Canada, China, Japan, Hong Kong, and South Korea as well as two divisional patent applications filed
in Australia and Japan to seek potential patent protection for our proprietary technologies in those countries
.
With
respect to PCT patent application serial no. PCT/US2019/026789 directed to methods for improving the wear performance of ceramic-polyethylene
or ceramic-ceramic articulation couples utilized in orthopaedic joint prostheses, we entered the national stage in Australia, Brazil,
Canada, Europe, Japan, Korea, and Mexico to seek proprietary technologies in those countries.
With
respect to PCT application serial no. PCT/US2019/048072 directed to antipathogenic devices and methods, we entered the national stage
in Europe, Japan, Mexico, Australia, Brazil, Canada, South Korea, China and India to seek proprietary technologies in those countries.
With
respect to PCT application serial no. PCT/US2020/037170 directed to methods of surface functionalization of zirconia-toughened alumina
with silicon nitride, we entered the national stage in Europe, Australia, Brazil, Canada, China, India, Japan, Mexico, and the United
States to seek proprietary technologies in those countries.
With
respect to PCT application serial no. PCT/US2021/014725 directed to antifungal composites and methods thereof, we plan on entering the
national stage before the statutory deadline on July 24, 2022 in Europe, Brazil, Australia, Canada, China, India, Mexico, and South Korea
to seek proprietary technologies in those countries.
In
relation to the sale of our spine implant business to CTL Medical under the Asset Purchase Agreement dated September 5, 2018 we assigned
our entire right to forty-eight (48) U.S. patents, two (2) foreign patents and three (3) pending patent applications from our patent
portfolio to CTL Medical under that transaction. In addition, three (3) U.S. patents (U.S. patent nos. 9,399,309; 9,517,136; and 9,649,197)
directed to silicon nitride manufacturing processes were licensed to CTL Medical under an irrevocable, fully paid-up, worldwide license
for a ten-year term with CTL Medical also having a Right of First Negotiation to acquire these patents if SINTX decides to later sell
these IP assets to a third party.
Our
remaining issued patents and pending applications are directed to additional aspects of our products and technologies including, among
other things:
●
designs
    for intervertebral fusion devices;
●
designs
    for hip implants;
●
designs
    for knee implants;
●
implants
    with improved antibacterial characteristics;
●
implants
    with improved wear performance and surface functionalization
●
antipathogenic,
    antibacterial, antimicrobial, antifungal, and antiviral compositions, devices, and methods; and
●
methods
    and systems for laser cladding, laser coating, and laser sintering of silicon nitride.
We
also expect to rely on trade secrets, know-how, continuing technological innovation and in-licensing opportunities to develop and maintain
our intellectual property position. However, trade secrets are difficult to protect. We seek to protect the trade secrets in our proprietary
technology and processes, in part, by entering into confidentiality agreements with commercial partners, collaborators, employees, consultants,
scientific advisors and other contractors and into invention assignment agreements with our employees and some of our commercial partners
and consultants. These agreements are designed to protect our proprietary information and, in the case of the invention assignment agreements,
to grant us ownership of the technologies that are developed.
Recent Developments
On June 30, 2022, we completed our
acquisition of Technology Assessment and Transfer, Inc. ("TA&T"), an advanced ceramics business specializing in
developing and commercializing materials for aerospace, defense, biomedical, and industrial applications. TA&T's
technologies and products include 3D printing of ceramic medical devices and heat exchangers, chemical vapor infiltration and
deposition of complex fiber-reinforced ceramic-matrix composites, and hot pressing of transparent armor and other technical
ceramics. TA&T uses government research grants to support advanced technology research and development innovations and
commercialize via limited production, technology licensing and cooperative partnerships. We believe this acquisition significantly
increases our capabilities in the aerospace, defense, and biomedical markets.
Corporate
Information
Our
headquarters is located at 1885 West 2100 South, Salt Lake City, Utah 84119, and our telephone number is (801) 839-3500. We maintain
a website at https://www.sintx.com. Information on the website is not incorporated by reference and is not a part of this prospectus.
4
Summary
of the Rights Offering
Securities
    to be Offered
We
    are distributing to you, at no charge, one non-transferable Subscription Right to purchase one Unit for every share of our common
    stock (or share of common stock issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of the
    Participating Warrants) that you owned on the Record Date. Each Unit consists of one share of our Preferred Stock and            Warrants. The
    Units will separate upon the closing of the Rights Offering and the Preferred Stock and Warrants will be issued separately, however,
    they may only be purchased as a Unit, and the Unit will not trade as a separate security.
Size
    of Offering
10,000
    Units.
Subscription
    Price
$1,000
    per Unit.
Series
    D Convertible Preferred Stock
Each
    share of Preferred Stock will be convertible, at the option of the holder at any time, into the number of shares of our common stock
    determined by dividing the $1,000 stated value per share of the Preferred Stock by a conversion price of $        per share, subject to
    adjustment. The Preferred Stock has certain conversion rights and dividend rights.
Warrants
Each
    Warrant entitles the holder to purchase one share of our common stock at an exercise price of $         per share, subject to adjustment,
    from the date of issuance through its expiration five years from the date of issuance. The Warrants will be exercisable for cash,
    or, solely during any period when a registration statement for the exercise of the Warrants is not in effect, on a cashless basis,
    at any time and from time to time after the date of issuance.
Record
    Date
5:00
    p.m., Eastern Time,         , 2022.
Basic
    Subscription Rights
Your
    Basic Subscription Right will entitle you to purchase one Unit at the Subscription Price. You may exercise your Basic Subscription
    Right for some or all of your Subscription Rights, or you may choose not to exercise your Subscription Rights. If you choose to exercise
    your Subscription Rights, there is no minimum number of Units you must purchase. We are distributing Basic Subscription Rights to
    purchase an aggregate of 25,890,870 Units, but are only selling 10,000 Units in the Rights Offering. In the event that
    the Rights Offering is over-subscribed, rights holders will be entitled to their pro rata portion of the Units.
Over-Subscription
    Privilege
If
    you exercise your Basic Subscription Rights in full, you may also choose to exercise an over-subscription privilege to purchase a
    portion of any Units that are not purchased by our other common, Series B Preferred, and Series C Preferred stockholders or Participating
    Warrant holders through the exercise of their Basic Subscription Rights, subject to proration and stock ownership limitations described
    elsewhere in this prospectus. The subscription agent will return any excess payments by mail without interest or deduction promptly
    after expiration of the subscription period.
Expiration
    Date
The
    Subscription Rights will expire at 5:00 p.m., Eastern Time, on          , 2022.
Procedure
    for Exercising Subscription Rights
To
                                            exercise your Subscription Rights, you must take the following steps:
If
    you are a record holder, as of the Record Date, of our common stock, Series B Preferred Stock, Series C Preferred Stock or Participating
    Warrants, you must deliver payment and a properly completed Rights Certificate to the Subscription Agent to be received before 5:00
    p.m., Eastern Time, on              , 2022. You may deliver the documents and payments by first class mail or courier service. If you use first
    class mail for this purpose, we recommend using registered mail, properly insured, with return receipt requested.
If
    as of the Record Date you are a beneficial owner of shares of common stock, Series B Preferred Stock, Series C Preferred Stock or
    Participating Warrants that are registered in the name of a broker, dealer, bank or other nominee, you should instruct your broker,
    dealer, bank or other nominee to exercise your Subscription Rights on your behalf. Please follow the instructions of your nominee,
    who may require that you meet a deadline earlier than 5:00 p.m., Eastern Time, on          , 2022.
5
Payment
    Adjustments
If
    you send a payment that is insufficient to purchase the number of Units requested, or if the number of Units requested is not specified
    in the Rights Certificate, the payment received will be applied to exercise Subscription Rights to the extent of the payment. If
    the payment exceeds the amount necessary for the full exercise of your Subscription Rights, including any over-subscription privilege
    exercised and permitted, the excess will be returned to you promptly in cash. You will not receive interest or a deduction on any
    payments refunded to you under the Rights Offering.
Delivery
    of Shares and Warrants
As
    soon as practicable after the expiration of the Rights Offering, and within five business days thereof, we expect to close on subscriptions
    and for the Subscription Agent to arrange for the issuance of the shares of Preferred Stock and Warrants purchased pursuant to the
    Rights Offering. All shares and Warrants that are purchased in the Rights Offering will be issued in book-entry, or uncertificated,
    form meaning that you will receive a direct registration, or DRS, account statement from our transfer agent reflecting ownership
    of these securities if you are a holder of record. If you hold your shares or Participating Warrants in the name of a bank, broker,
    dealer, or other nominee, DTC will credit your account with your nominee with the securities you purchased in the Rights Offering.
Non-transferability
    of Subscription Rights
The
    Subscription Rights may not be sold, transferred, assigned or given away to anyone. The Subscription Rights will not be listed for
    trading on any stock exchange or market.
Transferability
    of Warrants
The
    Warrants will be separately transferable following their issuance and through their expiration five years from the date of issuance.
No
    Board Recommendation
Our
    board of directors is not making a recommendation regarding your exercise of the Subscription Rights. You are urged to make your
    decision to invest based on your own assessment of our business and financial condition, our prospects for the future, the terms
    of the Rights Offering, the information in this prospectus and other information relevant to your circumstances. Please see "Risk
    Factors" for a discussion of some of the risks involved in investing in our securities.
No
    Revocation
Except
    as described below, all exercises of Subscription Rights are irrevocable, even if you later learn of information that you consider
    to be unfavorable to the exercise of your Subscription Rights.
Use
    of Proceeds
Assuming
    the exercise of Subscription Rights to purchase all Units of the Rights Offering, after deducting fees and expenses and excluding
    any proceeds received upon exercise of any Warrants, we estimate the net proceeds of the Rights Offering will be approximately $9.2
    million. We intend to use the net proceeds from the exercise of Subscription Rights for general corporate purposes and to fund
    ongoing operations and expansion of our business. See "Use of Proceeds."
6
Material
                                            U.S. Federal Income
Tax
    Consequences
For
    U.S. federal income tax purposes, we do not believe you should recognize income or loss upon receipt or exercise of a Subscription
    Right, but the receipt and exercise of the Subscription Rights is unclear in certain respects. You should consult your own tax advisor
    as to the tax consequences of the Rights Offering in light of your particular circumstances. See "Material U.S. Federal Income
    Tax Consequences."
Extension,
    Amendment and Termination
Although
                                            we do not presently intend to do so, we may extend the Rights Offering for additional time
                                            in our sole discretion for any reason for up to an additional 45 days. For example, we may
                                            decide that changes in the market price of our common stock warrant an extension, or we may
                                            decide that the degree of stockholder participation in the Rights Offering is less than the
                                            level we desire. In the event that we decide to extend the Rights Offering and you have already
                                            exercised your Subscription Rights, your subscription payment will remain with the Subscription
                                            Agent until such time as the Rights Offering closes or is terminated. We also reserve the
                                            right to amend or modify the terms of the Rights Offering, as appropriate. Our board of directors
                                            may for any reason terminate the Rights Offering at any time before the expiration of the
                                            Rights Offering. In the event that the Rights Offering is cancelled, all subscription payments
                                            received by the Subscription Agent will be returned, without interest or deduction, as soon
                                            as practicable.
If
    we should make any fundamental changes to the terms set forth in this prospectus, we will (i) file a post-effective amendment to
    the registration statement of which this prospectus forms a part, (ii) offer potential purchasers who have subscribed for rights
    the opportunity to cancel such subscriptions and issue a refund of any money advanced by such stockholder or eligible warrant holder,
    and (iii) recirculate an updated prospectus after the post-effective amendment is declared effective with the SEC.
Subscription
    Agent
American
    Stock Transfer & Trust Company, LLC
Information
    Agent
D.F.
    King & Co., Inc.
Questions
If
    you have any questions about the Rights Offering, please contact the Information Agent, D.F. King & Co., Inc., toll free at (866)
    620-2536, by mail at D.F. King & Co., Inc., 48 Wall Street, 22nd Floor, New York, NY 10005 or by email at sintx@dfking.com.
Market
    for Common Stock
Our
    common stock is listed on Nasdaq under the symbol "SINT."
Market
    for Series D Preferred Stock
There
    is no established public trading market for the Series D Preferred Stock, and we do not expect a market to develop. In addition,
    we do not intend to apply for listing of the Series D Preferred Stock on any securities exchange or recognized trading system.
Market
    for Warrants
There
    is no established public trading market for the Warrants, and we do not expect a market to develop. In addition, we do not intend
    to apply for listing of the Warrants on any securities exchange or recognized trading system.
Dealer-manager
Maxim
    Group LLC will act as dealer-manager for the Rights Offering.
7
INCORPORATION
OF CERTAIN INFORMATION BY REFERENCE
The
SEC allows us to "incorporate by reference" into this prospectus the information in other documents that we file with it.
This means that we can disclose important information to you by referring you to those documents. The information incorporated by reference
is considered to be a part of this prospectus, and information in documents that we file later with the SEC will automatically update
and supersede information contained in documents filed earlier with the SEC or contained in this prospectus. We incorporate by reference
in this prospectus the documents listed below and any future filings that we may make with the SEC under Sections 13(a), 13(c), 14, or
15(d) of the Exchange Act prior to the termination of the offering under this prospectus; provided, however, that we are not incorporating,
in each case, any documents or information deemed to have been furnished and not filed in accordance with SEC rules:
●
our
    Annual Report on
Form 10-K
for the year ended December 31, 2021;
●
our
    Quarterly Report on
Form 10-Q
for the quarter ended March 31, 2022;
●
our
    Current Report on
Form 8-K
filed on January 4, 2022;
●
our Current Report on
Form 8-K
filed on July 6, 2022:
●
the
    description of our common stock, which is contained in the Registration Statement on
Form 8-A
, as filed with the SEC on February
    7, 2014, as updated by the description of our common stock contained in
Exhibit 4.11
to our Annual Report on Form 10-K for the fiscal
    year ended December 31, 2021 and including any amendment or report filed for the purpose of updating such description.
Additionally,
all documents filed by us with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act (i) prior to effectiveness of this
registration statement, and (ii) after the effective date of this registration statement and before the termination or completion of
any offering hereunder, shall be deemed to be incorporated by reference into this prospectus from the respective dates of filing of such
documents, except that we do not incorporate any document or portion of a document that is "furnished" to the SEC, but not
deemed "filed."
Any
statement contained in this prospectus supplement, the accompanying prospectus or in a document incorporated or deemed to be incorporated
by reference into this prospectus supplement and the accompanying prospectus will be deemed to be modified or superseded for purposes
of this prospectus supplement and the accompanying prospectus to the extent that a statement contained in this prospectus supplement
and the accompanying prospectus or any other subsequently filed document that is deemed to be incorporated by reference into this prospectus
supplement and the accompanying prospectus modifies or supersedes the statement. Any statements so modified or superseded shall not be
deemed, except as so modified or superseded, to constitute a part of this prospectus supplement and the accompanying prospectus.
We
will furnish without charge to you, on written or oral request, a copy of any or all of the documents incorporated by reference in this
prospectus, including exhibits to these documents. You should direct any requests for documents to SINTX Technologies, Inc., Attention:
Investor Relations, 1885 West 2100 South, Salt Lake City, Utah 84119 or by calling (801) 839-3500.
You
also may access these filings on our website at
www.sintx.com
.
We do not incorporate the information on our website
into this prospectus supplement or the accompanying prospectus and you should not consider any information on, or that can be accessed
through, our website as part of this prospectus supplement or the accompanying prospectus (other than those filings with the SEC that
we specifically incorporate by reference into this prospectus supplement and the accompanying prospectus).
8
WHERE
YOU CAN FIND MORE INFORMATION
We
have filed a registration statement on Form S-1 with the SEC under the Securities Act of 1933, as amended. This prospectus is part of
the registration statement, but the registration statement includes additional information and exhibits. We file annual, quarterly and
current reports, proxy statements and other information with the SEC. The SEC maintains a web site that contains reports, proxy and information
statements and other information regarding companies, such as ours, that file documents electronically with the SEC. The website address
is www.sec.gov. The information on the SEC's website is not part of this prospectus, and any references to this website or any
other website are inactive textual references only.
9
QUESTIONS
AND ANSWERS RELATING TO THE RIGHTS OFFERING
The
following are examples of what we anticipate will be common questions about this Rights Offering. The answers are based on selected information
included elsewhere in this prospectus. The following questions and answers do not contain all of the information that may be important
to you and may not address all of the questions that you may have about the Rights Offering. This prospectus and the documents incorporated
by reference into this prospectus contain more detailed descriptions of the terms and conditions of the Rights Offering and provides
additional information about us and our business, including potential risks related to the Rights Offering, the Units offered hereby,
and our business. We urge you to read this entire prospectus and the documents incorporated by reference into this prospectus.
Why
are we conducting the Rights Offering?
We
are conducting the Rights Offering to raise additional capital for general corporate purposes and to fund ongoing operations and expansion
of our business.
What
is a Unit?
Each
Unit consists of one share of Series D Convertible Preferred Stock and          
warrants to purchase common stock, at a subscription price of $1,000 per Unit. No fractional Units will be issued. Each warrant
entitles you to purchase one share of common stock at an exercise price of $         per share, from the date of issuance through its
expiration five years after the date of issuance. Each share of Preferred Stock will have a stated value of $1,000 and will be
convertible into shares of our common stock at the conversion price $          . The Preferred Stock do not generally have any voting rights
and will not be certificated. The shares of Preferred Stock and warrants that comprise each Unit are immediately separable and will
be issued separately in this Rights Offering, however, they may only be purchased as a Unit, and the Units will not trade as a
separate security.
What
is the Rights Offering?
We
are distributing, at no charge, to holders of our common stock, Series B Preferred Stock, Series C Preferred Stock and holders of
the Participating Warrants, as of the Record Date, non-transferable Subscription Rights to purchase Units at a price of $1,000 per
Unit. The Subscription Rights will not be tradable. Each Unit consists of one share of our Preferred Stock and
           Warrants. See "Are there risks in exercising my Subscription
Rights?" below. Each Warrant will be exercisable for one share of our common stock. Upon expiration of the Rights Offering,
the Preferred Stock and Warrants comprising the Units will immediately separate and will be issued separately but may only be
purchased as a Unit, and the Units will not trade as a separate security. There is no public trading market for the Preferred Stock
or the Warrants and they will not be listed for trading on Nasdaq or any other securities exchange or market. The common stock to be
issued upon conversion of the Preferred Stock or exercise of the Warrants, like our existing shares of common stock, will be traded
on the NASDAQ Capital Market under the symbol "SINT." You will receive one Subscription Right for every share of common
stock (including each share of common stock issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and
exercise of Participating Warrants) that you owned as of 5:00 p.m., Eastern Time, on the Record Date. Each Subscription Right
entitles the record holder to a Basic Subscription Right and an Over-Subscription Privilege. The Subscription Rights will expire if
they are not exercised by 5:00 p.m., Eastern Time, on             , 2022, unless we extend or earlier terminate the Rights Offering.
What
are the Basic Subscription Rights?
For
every share you owned (including each share of common stock issuable upon conversion of Series B Preferred Stock, Series C Preferred
Stock and exercise of Participating Warrants) as of the Record Date, you will receive one Basic Subscription Right, which gives you
the opportunity to purchase one Unit, consisting of one share of our Preferred Stock and
          Warrants, for a price of $1,000 per Unit. For example, if you owned 100
shares of common stock as of the Record Date, you will receive 100 Subscription Rights and will have the right to purchase 100
shares of our Preferred Stock and Warrants to purchase            shares of our
common stock for $1,000 per Unit (or a total payment of $100,000). You may exercise all or a portion of your Basic Subscription
Rights or you may choose not to exercise any Basic Subscription Rights at all.
10
If
you are a record holder of our common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants, the number
of shares you may purchase pursuant to your Basic Subscription Rights is indicated on the enclosed Rights Certificate. If you hold your
common shares, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants in the name of a broker, dealer, bank or
other nominee who uses the services of the Depository Trust Company, or DTC, you will not receive a Rights Certificate. Instead, DTC
will issue one Subscription Right to your nominee record holder for each share of our common stock (including each share of common stock
issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants) that you beneficially
own as of the Record Date. If you are not contacted by your nominee, you should contact your nominee as soon as possible.
What
is the Over-Subscription Privilege?
If
you exercise your Basic Subscription Rights in full, you may also choose to exercise your Over-Subscription Privilege to purchase a portion
of any Units that are not purchased by other holders of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating
Warrant holders and remain available under the Rights Offering. You should indicate on your Rights Certificate, or the form provided
by your nominee if your shares are held in the name of a nominee, how many additional Units you would like to purchase pursuant to your
Over-Subscription Privilege, which we refer to as your Over-Subscription Request.
Subject
to stock ownership limitations, if enough Units are available, we will seek to honor your Over-Subscription Request in full. If Over-
Subscription Requests exceed the number of Units available, however, we will allocate the available Units pro-rata among the stockholders
and warrant holders exercising the Over-Subscription Privilege in proportion to the number of shares of our common stock (including each
share of common stock issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants)
each of those stockholders and warrant holders owned on the Record Date, relative to the number of shares (including each share of common
stock issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants) owned on
the Record Date by all record holders exercising the Over-Subscription Privilege. If this pro-rata allocation results in any stockholders
or warrant holders receiving a greater number of Units than the stockholder or warrant holders subscribed for pursuant to the exercise
of the Over-Subscription Privilege, then such stockholder or warrant holder will be allocated only that number of Units for which the
stockholder or warrant holder oversubscribed, and the remaining Units will be allocated among all other stockholders and warrant holders
exercising the Over-Subscription Privilege on the same pro rata basis described above. The proration process will be repeated until all
Units have been allocated. See "The Rights Offering- Limitation on the Purchase of Units" for a description of certain stock
ownership limitations.
To
properly exercise your Over-Subscription Privilege, you must deliver to the Subscription Agent the subscription payment related to your
Over- Subscription Privilege before the Rights Offering expires. Because we will not know the total number of unsubscribed Units before
the expiration of the Rights Offering, if you wish to maximize the number of Units you purchase pursuant to your over-subscription privilege,
you will need to deliver payment in an amount equal to the aggregate Subscription Price for the maximum number of Units available, assuming
that no common, Series B or Series C stockholder or warrant holders other than you has purchased any Units pursuant to such stockholder's
or warrant holder's basic subscription right and over-subscription privilege. See "The Rights Offering- The Subscription
Rights-Over-Subscription Privilege." To the extent you properly exercise your Over-Subscription Privilege for an number of Units
that exceeds the number of unsubscribed Units available to you, any excess subscription payments will be returned to you within 10 business
days after the expiration of the Rights Offering, without interest or deduction.
American
Stock Transfer & Trust Company, LLC, our Subscription Agent for the Rights Offering, will determine the allocation of Over-Subscription
Requests based on the formula described above.
11
May
the Subscription Rights that I exercise be reduced for any reason?
Yes.
While we are distributing to holders of our common stock, Series B Preferred Stock, Series C Preferred Stock, and holders of the Participating
Warrants, one Subscription Right for every share of common stock (including each share of common stock issuable upon conversion of Series
B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants) owned on the Record Date, we are only seeking to
raise $10 million dollars in gross proceeds in this Rights Offering. As a result, based on 24,719,574 shares of common stock outstanding
as of July 5, 2022, 19,306 shares of common stock issuable upon conversion of 26 shares of Series B Preferred Stock, 34,428 shares
of common stock issuable upon conversion of 51 shares of Series C Preferred Stock and 1,117,562 shares of common stock issuable
upon exercise of Participating Warrants, we would grant Subscription Rights to acquire 25,890,870 Units but will only accept subscriptions
for 10,000 Units. Accordingly, enough Units may not be available to honor your subscription in full. If exercises of Basic Subscription
Rights exceed the number of Units available in the Rights Offering, we will allocate the available Units pro-rata among the record holders
exercising the Basic Subscription Rights in proportion to the number of shares of our common stock (including each share of common stock
issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants) each of those
record holders owned on the Record Date, relative to the number of shares owned on the Record Date by all record holders exercising the
Basic Subscription Right. If this pro-rata allocation results in any record holders receiving a greater number of Units than the record
holder subscribed for pursuant to the exercise of the Basic Subscription Rights, then such record holder will be allocated only that
number of Units for which the record holder subscribed, and the remaining Units will be allocated among all other record holders exercising
their Basic Subscription Rights on the same pro rata basis described above. The proration process will be repeated until all Units have
been allocated. Please also see the discussion under "The Rights Offering-The Subscription Rights-Over-Subscription Privilege"
and "The Rights Offering-Limitation on the Purchase of Units" for a description potential proration as to the Over-Subscription
Privilege and certain stock ownership limitations.
If
for any reason the number of Units allocated to you is less than you have subscribed for, then the excess funds held by the Subscription
Agent on your behalf will be returned to you, without interest, as soon as practicable after the Rights Offering has expired and all
prorating calculations and reductions contemplated by the terms of the Rights Offering have been effected, and we will have no further
obligations to you.
What
are the terms of the Series D Convertible Preferred Stock?
Each
share of Preferred Stock will be convertible at the option of the holder at any time, into the number of shares of our common stock determined
by dividing the $1,000 stated value per share of the Preferred Stock by a conversion price of $          per share, subject to adjustment. The
Preferred Stock has certain conversion rights and dividend rights as described in more detail herein.
What
are the terms of the Warrants?
Each
Warrant entitles the holder to purchase one share of our common stock at an exercise price of $            per share from the date of issuance through
its expiration five years from the date of issuance. The Warrants will be exercisable for cash, or, solely during any period when a registration
statement for the exercise of the Warrants is not in effect, on a cashless basis.
Are
the Preferred Stock or Warrants listed?
There
is no public trading market for the Preferred Stock or Warrants and they will not be listed for trading on Nasdaq or any other securities
exchange or market. The Warrants will be issued in registered form under a warrant agent agreement with American Stock Transfer &
Trust Company, LLC, as warrant agent.
Will
fractional shares be issued upon exercise of Subscription Rights, the conversion of Preferred Stock, or the exercise of Warrants?
No.
We will not issue fractional shares of common stock in the Rights Offering. We will only distribute Subscription Rights to acquire whole
Units, rounded down to the nearest whole number of underlying common shares giving rise to such Subscription Rights. Any excess subscription
payments received by the Subscription Agent will be returned within 10 business days after expiration of the Rights Offering, without
interest or deduction.
Additionally,
no fractional shares of common stock will be issued as a result of the conversion of shares of Preferred Stock or the exercise of Warrants.
Instead, for any such fractional share that would otherwise have been issuable upon conversion of shares of Preferred Stock, we may,
at our election, pay a cash payment equal to such fraction multiplied by the conversion price or round up to the next whole share, and
for any such fractional share that would have otherwise been issued upon exercise of Warrants, we will round up such fraction to the
next whole share.
12
What
effect will the Rights Offering have on our outstanding common stock?
Assuming
no other transactions by us involving our capital stock prior to the expiration of the Rights Offering, and if the Rights Offering is
fully subscribed, upon consummation of the Rights Offering we will have           shares
of common stock issued and outstanding, 26 shares of Series B Preferred Stock issued and outstanding convertible into an aggregate
of 19,306  shares of our common stock, 51 shares of Series C Preferred Stock issued and outstanding convertible into
an aggregate of  34,428 shares of our common stock, and 10,000 shares of Preferred Stock issued and outstanding convertible
into an aggregate of              shares of our common stock, and Warrants
to purchase an additional            shares of our common stock issued and outstanding.
The exact number of shares of Preferred Stock and Warrants that we will issue in this offering will depend on the number of Units that
are subscribed for in the Rights Offering.
How
was the Subscription Price determined?
In
determining the Subscription Price, the directors considered, among other things, the following factors:
●
the
    current and historical trading prices of our common stock;
●
the
    price at which stockholders might be willing to participate in the Rights Offering;
●
the
    value of the common stock issuable upon conversion of the Preferred Stock being issued as a component of the Unit;
●
the
    value of the Warrant being issued as a component of the Unit;
●
our
    need for additional capital and liquidity;
●
the
    cost of capital from other sources; and
●
comparable
    precedent transactions, including the percentage of shares offered, the terms of the subscription rights being offered, the subscription
    price and the discount that the subscription price represented to the immediately prevailing closing prices for those offerings.
In
conjunction with the review of these factors, the board of directors also reviewed our history and prospects, including our past and
present earnings and cash requirements, our prospects for the future, the outlook for our industry and our current financial condition.
The board of directors also believed that the Subscription Price should be designed to provide an incentive to our current stockholders
to participate in the Rights Offering and exercise their Basic Subscription Right and their Over-Subscription Privilege.
The
Subscription Price does not necessarily bear any relationship to any established criteria for value. You should not consider the Subscription
Price as an indication of actual value of our company or our common stock. The market price of our common stock may decline during or
after the Rights Offering. You should obtain a current price quote for our common stock and perform an independent assessment of our
Preferred Stock and Warrants before exercising your Subscription Rights and make your own assessment of our business and financial condition,
our prospects for the future, the terms of the Rights Offering, the information in this prospectus and the other considerations relevant
to your circumstances. Once made, all exercises of Subscription Rights are irrevocable. In addition, there is no established trading
market for the Preferred Stock or the Warrants to be issued pursuant to this offering, and the Preferred Stock and the Warrants may not
be widely distributed.
13
Am
I required to exercise all the Basic Subscription Rights I receive in the Rights Offering?
No.
You may exercise any number of your Basic Subscription Rights, or you may choose not to exercise any Basic Subscription Rights. If you
do not exercise any Basic Subscription Rights, the number of shares of our common stock you own (including each share of common stock
issuable upon conversion of Series B Preferred Stock, Series C Preferred Stock and exercise of Participating Warrants) will not change.
However, if you choose to not exercise your Basic Subscription Rights in full and other holders of Subscription Rights do exercise, your
proportionate ownership interest in our company will decrease. If you do not exercise your Basic Subscription Rights in full, you will
not be entitled to exercise your Over-Subscription Privilege.
How
soon must I act to exercise my Subscription Rights?
If
you received a Rights Certificate and elect to exercise any or all of your Subscription Rights, the Subscription Agent must receive your
completed and signed Rights Certificate and payment for both your Basic Subscription Rights and any Over-Subscription Privilege you elect
to exercise before the Rights Offering expires on            , 2022, at 5:00 p.m., Eastern Time, unless we extend or earlier terminate the Rights
Offering. If you hold your common shares, Series B Preferred Stock, Series C Preferred Stock, or Participating Warrants in the name of
a broker, dealer, bank or other nominee, your nominee may establish a deadline before the expiration of the Rights Offering by which
you must provide it with your instructions to exercise your Subscription Rights, along with the required subscription payment.
May
I transfer my Subscription Rights?
No.
The Subscription Rights may be exercised only by the common, Series B Preferred and Series C Preferred stockholders and Participating
Warrant holders to whom they are distributed, and they may not be sold, transferred, assigned or given away to anyone else, other than
by operation of law. As a result, Rights Certificates may be completed only by the stockholder or warrant holder who receives the certificate.
We do not intend to apply for the listing of the Subscription Rights on any securities exchange or recognized trading market.
Will
our directors and executive officers participate in the Rights Offering?
To
the extent they hold common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating Warrants as of the Record Date,
our directors and executive officers will be entitled to participate in the Rights Offering on the same terms and conditions applicable
to other Rights holders.
Are
we requiring a minimum subscription to complete the Rights Offering?
There
is no aggregate minimum we must receive to complete the Rights Offering.
Has
the board of directors made a recommendation to stockholders regarding the Rights Offering?
No.
Our board of directors is making no recommendation regarding your exercise of the Subscription Rights. Rights holders who exercise Subscription
Rights will incur investment risk on new money invested. We cannot predict the price at which our shares of common stock will trade after
the Rights Offering. On July 7, 2022, the last reported sale price of our common stock on Nasdaq was $0.44 per share. You
should make your decision based on your assessment of our business and financial condition, our prospects for the future, the terms of
the Rights Offering, the information contained in this prospectus and other considerations relevant to your circumstances. See "Risk
Factors" for discussion of some of the risks involved in investing in our securities.
How
do I exercise my Subscription Rights?
If
you are a common or Series B Preferred or Series C Preferred stockholder or Participating Warrant holder of record (meaning you hold
your shares of our common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating Warrants in your name and not through
a broker, dealer, bank or other nominee) and you wish to participate in the Rights Offering, you must deliver a properly completed and
signed Rights Certificate, together with payment of the Subscription Price for both your Basic Subscription Rights and any Over-Subscription
Privilege you elect to exercise, to the Subscription Agent before 5:00 p.m., Eastern Time, on              , 2022. If you are exercising your Subscription
Rights through your broker, dealer, bank or other nominee, you should promptly contact your broker, dealer, bank or other nominee and
submit your subscription documents and payment for the Units subscribed for in accordance with the instructions and within the time period
provided by your broker, dealer, bank or other nominee.
14
What
if my shares are held in "street name"?
If
you hold your shares of our common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating Warrants in the name of
a broker, dealer, bank or other nominee, then your broker, dealer, bank or other nominee is the record holder of the shares you beneficially
own. The record holder must exercise the Subscription Rights on your behalf. Therefore, you will need to have your record holder act
for you.
If
you wish to participate in this Rights Offering and purchase Units, please promptly contact the record holder of your shares or Participating
Warrants. We will ask the record holder of your shares or Participating Warrants, who may be your broker, dealer, bank or other nominee,
to notify you of this Rights Offering.
What
form of payment is required?
You
must timely pay the full Subscription Price for the full number of Units you wish to acquire pursuant to the exercise of Subscription
Rights by delivering to the Subscription Agent a:
●
personal
    check drawn on a U.S. bank;
●
certified
    check drawn on a U.S. bank;
●
U.S.
    Postal money order; or
●
wire
    transfer.
If
you send payment by personal uncertified check, payment will not be deemed to have been delivered to the Subscription Agent until the
check has cleared. As such, any payments made by personal check should be delivered to the Subscription Agent no fewer than three business
days prior to the expiration date.
If
you send a payment that is insufficient to purchase the number of Units you requested, or if the number of Units you requested is not
specified in the forms, the payment received will be applied to exercise your Subscription Rights to the fullest extent possible based
on the amount of the payment received.
Will
I receive interest on any funds I deposit with the Subscription Agent?
No.
You will not be entitled to any interest on any funds that are deposited with the Subscription Agent pending completion or cancellation
of the Rights Offering. If the Rights Offering is cancelled for any reason, the Subscription Agent will return this money to subscribers,
without interest or penalty, as soon as practicable.
When
will I receive my new shares of Preferred Stock and Warrants?
As
soon as practicable after the expiration of the Rights Offering, and within five business days thereof, we expect to close on subscriptions
and for the Subscription Agent to arrange for the issuance of the shares of Preferred Stock and Warrants purchased in the Rights Offering.
At closing, all prorating calculations and reductions contemplated by the terms of the Rights Offering will have been effected and payment
to us for the subscribed-for Units will have cleared. All shares and Warrants that you purchase in the Rights Offering will be issued
in book-entry, or uncertificated, form meaning that you will receive a direct registration, or DRS, account statement from our transfer
agent reflecting ownership of these securities if you are a holder of record. If you hold your common, Series B Preferred or Series C
Preferred Stock or Participating Warrants in the name of a broker, dealer, bank or other nominee, DTC will credit your account with your
nominee with the securities you purchase in the Rights Offering. American Stock Transfer & Trust Company, LLC, is acting as the warrant
agent in this offering.
15
After
I send in my payment and Rights Certificate to the Subscription Agent, may I cancel my exercise of Subscription Rights?
No.
Exercises of Subscription Rights are irrevocable, even if you later learn information that you consider to be unfavorable to the exercise
of your Subscription Rights. You should not exercise your Subscription Rights unless you are certain that you wish to purchase Units
at the Subscription Price.
How
much will our company receive from the Rights Offering?
Assuming
that all Units are sold in the Rights Offering, we estimate that the net proceeds from the Rights Offering will be approximately $9.2
million, based on the Subscription Price of $1,000 per Unit, after deducting fees and expenses payable to the dealer-manager, before
deducting other estimated expenses payable by us and excluding any proceeds received upon exercise of any Warrants. If all Warrants
included in the Units are exercised for cash at the exercise price of $           per
share, we will receive an additional $            million. We intend to use the
net proceeds for general corporate purposes and to fund ongoing operations and expansion of our business. See "Use of Proceeds."
Are
there risks in exercising my Subscription Rights?
Yes.
The exercise of your Subscription Rights involves risks. Exercising your Subscription Rights involves the purchase of shares of our Preferred
Stock and Warrants to purchase common stock and you should consider this investment as carefully as you would consider any other investment.
In addition, our Preferred Stock and Warrants will not be listed on Nasdaq and a market for the Preferred Stock and Warrants does not
exist. See "Risk Factors" for discussion of additional risks involved in investing in our securities.
Can
the board of directors terminate, extend or amend the Rights Offering?
Yes.
Our board of directors may decide to terminate the Rights Offering at any time and for any reason before the expiration of the Rights
Offering. We also have the right to extend the Rights Offering for additional periods in our sole discretion for up to an additional
45 days. We do not presently intend to extend the Rights Offering. We will notify stockholders and the public if the Rights Offering
is terminated or extended by issuing a press release announcing the extension no later than 9:00 a.m., Eastern Time, on the next business
day after the most recently announced expiration date of the Rights Offering. In the event that we decide to extend the Rights Offering
and you have already exercised your Subscription Rights, your subscription payment will remain with the Subscription Agent until such
time as the Rights Offering closes or is terminated.
Our
board of directors also reserves the right to amend or modify the terms of the Rights Offering in its sole discretion. If we should make
any fundamental changes to the terms of the Rights Offering set forth in this prospectus, we will file a post-effective amendment to
the registration statement in which this prospectus is included, offer potential purchasers who have subscribed for rights the opportunity
to cancel such subscriptions and issue a refund of any money advanced by such stockholder and recirculate an updated prospectus after
the post-effective amendment is declared effective by the SEC. In addition, upon such event, we may extend the Expiration Date of the
Rights Offering to allow holders of rights ample time to make new investment decisions and for us to recirculate updated documentation.
Promptly following any such occurrence, we will issue a press release announcing any changes with respect to the Rights Offering and
the new expiration date. The terms of the Rights Offering cannot be modified or amended after the Expiration Date of the Rights Offering.
Although we do not presently intend to do so, we may choose to amend or modify the terms of the Rights Offering for any reason, including,
without limitation, in order to increase participation in the Rights Offering. Such amendments or modifications may include a change
in the subscription price, although no such change is presently contemplated. If we should make any fundamental changes to the terms
set forth in this prospectus, we will (i) file a post-effective amendment to the registration statement of which this prospectus forms
a part, (ii) offer potential purchasers who have subscribed for rights the opportunity to cancel such subscriptions, and (iii) issue
a refund of any money advanced by such stockholder or eligible warrant holder and recirculate an updated prospectus after the post-effective
amendment is declared effective with the SEC.
16
If
the Rights Offering is not completed or is terminated, will my subscription payment be refunded to me?
Yes.
The Subscription Agent will hold all funds it receives in a segregated bank account until completion of the Rights Offering. If we do
not complete the Rights Offering, all subscription payments received by the Subscription Agent will be returned within 10 business days
after the termination or expiration of the Rights Offering, without interest or deduction. If you own shares in "street name,"
it may take longer for you to receive your subscription payment because the Subscription Agent will return payments through the record
holder of your shares. In addition, if we should make any fundamental changes to the terms set forth in this prospectus, we will (i)
file a post-effective amendment to the registration statement of which this prospectus forms a part, (ii) offer potential purchasers
who have subscribed for rights the opportunity to cancel such subscriptions, and (iii) issue a refund of any money advanced by such stockholder
or eligible warrant holder and recirculate an updated prospectus after the post-effective amendment is declared effective with the SEC.
How
do I exercise my Rights if I live outside the United States?
The
Subscription Agent will hold Rights Certificates for stockholders having addresses outside the United States. To exercise Subscription
Rights, foreign stockholders must notify the Subscription Agent and timely follow other procedures described in the section entitled
"The Rights Offering - Foreign Stockholders."
What
fees or charges apply if I purchase shares in the Rights Offering?
We
are not charging any fee or sales commission to issue Subscription Rights to you or to issue shares of Preferred Stock or Warrants to
you if you exercise your Subscription Rights. If you exercise your Subscription Rights through a broker, dealer, bank or other nominee,
you are responsible for paying any fees your broker, dealer, bank or other nominee may charge you.
What
are the U.S. federal income tax consequences of receiving and/or exercising my Subscription Rights?
For
U.S. federal income tax purposes, we do not believe you should recognize income or loss in connection with the receipt or exercise of
Subscription Rights in the Rights Offering, but the receipt and exercise of the Subscription Rights is unclear in certain respects. You
should consult your own tax advisor as to your tax consequences resulting from the receipt and exercise of Subscription Rights, including
the receipt, ownership and disposition of our Preferred Stock, Warrants, and common stock received upon the conversion of Preferred Stock
or the exercise of Warrants. For further information, see "Material U.S. Federal Income Tax Consequences."
To
whom should I send my forms and payment?
If
your shares of common stock, Series B Preferred stock, Series C Preferred stock, or Participating Warrants are held in the name of a
broker, dealer, bank or other nominee, then you should send your subscription documents and subscription payment to that broker, dealer,
bank or other nominee. If you are the record holder, then you should send your subscription documents, Rights Certificate, and subscription
payment to the Subscription Agent by hand delivery, first class mail or courier service to:
By
    mail:
By
    hand or overnight courier:
You
or, if applicable, your nominee are solely responsible for completing delivery to the Subscription Agent of your subscription documents,
Rights Certificate and payment. You should allow sufficient time for delivery of your subscription materials to the Subscription Agent
and clearance of payment before the expiration of the Rights Offering at 5:00 p.m. Eastern Time on          , 2022.
Whom
should I contact if I have other questions?
If
you have other questions or need assistance, please contact the Information Agent: D.F. King & Co., Inc., toll free at (866) 620-2536,
by mail at D.F. King & Co., Inc., 48 Wall Street, 22nd Floor, New York, NY 10005 or by email at sintx@dfking.com.
Who
is the dealer-manager?
Maxim
Group LLC is acting as the sole dealer-manager for the Rights Offering. Under the terms and subject to the conditions contained in the
dealer-manager agreement, the dealer-manager will use its best efforts to solicit the exercise of Subscription Rights. We have agreed
to pay the dealer-manager certain fees for acting as dealer-manager and to reimburse the dealer-manager for certain out-of-pocket expenses
incurred in connection with this offering. The dealer-manager is not underwriting or placing any of the Subscription Rights or the shares
of our Preferred Stock or Warrants being issued in the Rights Offering and is not making any recommendation with respect to such Subscription
Rights (including with respect to the exercise or expiration of such Subscription Rights), shares of Preferred Stock or Warrants.
17
RISK
FACTORS
Investing
in our securities involves a high degree of risk. Before making an investment decision with respect to our securities, we urge you to
carefully consider the risks described in the "Risk Factors" section of our Annual Report on Form 10-K for the year ended
December 31, 2021 and our subsequent Quarterly Reports on Form 10-Q, which are incorporated by reference into this prospectus. These
risk factors relate to our business, intellectual property, regulatory matters, and ownership of our common stock. In addition, the following
risk factors present material risks and uncertainties associated with the Rights Offering. The risks and uncertainties incorporated by
reference into this prospectus or described below are not the only ones we face. Additional risks and uncertainties not presently known
or which we consider immaterial as of the date hereof may also have an adverse effect on our business. If any of the matters discussed
in the following risk factors were to occur, our business, financial condition, results of operations, cash flows or prospects could
be materially adversely affected, the market price of our common stock could decline and you could lose all or part of your investment
in our securities.
Risks
Related to the Rights Offering
Our
management will have broad discretion over the use of the net proceeds from this offering, you may not agree with how we use the proceeds
and the proceeds may not be invested successfully.
Our
management will have broad discretion as to the use of the net proceeds from this offering and could use them for purposes other than
those contemplated at the time of commencement of this offering. Accordingly, you will be relying on the judgment of our management regarding
the use of these net proceeds, and you will not have the opportunity, as part of your investment decision, to assess whether the proceeds
are being used appropriately. It is possible that, pending their use, we may invest the net proceeds in a way that does not yield a favorable,
or any, return for us. The failure of our management to use such funds effectively could have a material adverse effect on our business,
financial condition, operating results and cash flows.
Your
interest in our company may be diluted as a result of this Rights Offering.
Stockholders
and warrant holders who do not fully exercise their Subscription Rights should expect that they will, at the completion of this offering,
own a smaller proportional interest in our company on a fully-diluted basis than would otherwise be the case had they fully exercised
their Subscription Rights. Further, the shares issuable upon the exercise of the Warrants to be issued pursuant to the Rights Offering
will dilute the ownership interest of stockholders not participating in this offering or holders of Warrants who have not exercised them.
Further,
if you purchase Units in this offering at the Subscription Price, you may suffer immediate and substantial dilution in the net tangible
book value of our common stock. See "Dilution" in this prospectus for a more detailed discussion of the dilution which may
incur in connection with this offering.
Completion
of the Rights Offering is not subject to us raising a minimum offering amount.
Completion
of the Rights Offering is not subject to us raising a minimum offering amount and, therefore, proceeds may be insufficient to meet our
objectives, thereby increasing the risk to investors in this offering, including investing in a company that continues to require capital.
See "Use of Proceeds."
This
Rights Offering may cause the trading price of our common stock to decrease.
The
Subscription Price, together with the number of shares of common stock issuable upon conversion of the Preferred Stock and Warrants we
propose to issue and ultimately will issue if this Rights Offering is completed, may result in an immediate decrease in the market price
of our common stock. This decrease may continue after the completion of this Rights Offering. If that occurs, you may have committed
to buy shares of our common stock at a price greater than the prevailing market price. We cannot predict the effect, if any, that the
availability of shares for future sale represented by the Warrants issued in connection with the Rights Offering will have on the market
price of our common stock from time to time. Further, if a substantial number of Subscription Rights are exercised and the holders of
the shares received upon exercise of those Subscription Rights or the related Warrants choose to sell some or all of the shares underlying
the Subscription Rights or the related Warrants, the resulting sales could depress the market price of our common stock.
18
Holders
of our Preferred Stock and Warrants will have no rights as a common stockholder until such holders convert or exercise their Preferred
Stock or Warrants, respectively, and acquire our common stock.
Until
holders of Preferred Stock or Warrants acquire shares of our common stock upon conversion or exercise of the Preferred Stock or Warrants,
respectively, holders of such securities will have no rights with respect to the shares of our common stock underlying such Preferred
Stock or Warrants. Upon conversion or exercise of the Preferred Stock or Warrants, respectively, the holders thereof will be entitled
to exercise the rights of a common stockholder only as to matters for which the record date occurs after the exercise date. Prior to
conversion, holders of Preferred Stock will have limited voting rights.
If
we terminate this offering for any reason, we will have no obligation other than to return subscription monies within 10 business days.
We
may decide, in our sole discretion and for any reason, to cancel or terminate the Rights Offering at any time prior to the expiration
date. If this offering is cancelled or terminated, we will have no obligation with respect to Subscription Rights that have been exercised
except to return within 10 business days, without interest or deduction, all subscription payments deposited with the Subscription Agent.
If we terminate this offering and you have not exercised any Subscription Rights, such Subscription Rights will expire and be worthless.
The
Subscription Price determined for this offering is not an indication of the fair value of our common stock.
In
determining the Subscription Price, our board of directors considered a number of factors, including, but not limited to, our need to
raise capital in the near term to continue our operations, the current and historical trading prices of our common stock, a price that
would increase the likelihood of participation in the Rights Offering, the cost of capital from other sources, the value of the Preferred
Stock and Warrants being issued as components of the Unit, and comparable precedent transactions. The Subscription Price does not necessarily
bear any relationship to any established criteria for value. No valuation consultant or investment banker has opined upon the fairness
or adequacy of the Subscription Price. You should not consider the Subscription Price as an indication of the value of our company or
our common stock.
If
you do not act on a timely basis and follow subscription instructions, your exercise of Subscription Rights may be rejected.
Holders
of Subscription Rights who desire to purchase shares of our Preferred Stock and Warrants in this offering must act on a timely basis
to ensure that all required forms and payments are actually received by the Subscription Agent prior to 5:00 p.m., New York City time,
on the expiration date, unless extended. If you are a beneficial owner of shares of common stock, Series B Preferred Stock, Series C
Preferred Stock, or Participating Warrants and you wish to exercise your Subscription Rights, you must act promptly to ensure that your
broker, dealer, bank, trustee or other nominee acts for you and that all required forms and payments are actually received by your broker,
dealer, bank, trustee or other nominee in sufficient time to deliver such forms and payments to the Subscription Agent to exercise the
Subscription Rights granted in this offering that you beneficially own prior to 5:00 p.m., New York City time on the expiration date,
as may be extended. We will not be responsible if your broker, dealer, bank, trustee or other nominee fails to ensure that all required
forms and payments are received by the Subscription Agent prior to 5:00 p.m., New York City time, on the expiration date.
If
you fail to complete and sign the required subscription forms, send an incorrect payment amount, or otherwise fail to follow the subscription
procedures that apply to your exercise in this Rights Offering, the Subscription Agent may, depending on the circumstances, reject your
subscription or accept it only to the extent of the payment received. Neither we nor the Subscription Agent undertakes to contact you
concerning an incomplete or incorrect subscription form or payment, nor are we under any obligation to correct such forms or payment.
We have the sole discretion to determine whether a subscription exercise properly follows the subscription procedures.
19
You
may not receive all of the Units for which you subscribe.
While
we are distributing to holders of our common stock, Series B Preferred Stock, Series C Preferred Stock, and Participating Warrants, one
Subscription Right for every share of common stock (including each share of common stock issuable upon conversion of Series B Preferred
Stock, Series C Preferred Stock, and exercise of Participating Warrants) owned on the Record Date, we are only seeking to raise $10 million
dollars in gross proceeds in this Rights Offering. As a result, based on 24,719,574 shares of common stock outstanding as of July
5, 2022, and 19,306 shares of common stock issuable upon conversion of 26 shares of our Series B Preferred Stock, 34,428 shares
of common stock issuable upon conversion of 51 shares of our Series C Preferred Stock and 1,117,562 shares of common stock issuable
upon exercise of Participating Warrants, we would grant Subscription Rights to acquire 25,890,870 Units but will only accept subscriptions
for 10,000 Units. Accordingly, enough Units may not be available to honor your subscription in full. If excess Units are available after
the exercise of Basic Subscription Rights, holders who fully exercise their Basic Subscription Rights will be entitled to subscribe for
an additional number of Units. Over-Subscription Privileges will be allocated pro rata among Rights holders who over-subscribed, based
on the number of over-subscription Units to which they have subscribed. We cannot guarantee that you will receive any or the entire number
of Units for which you subscribed. If for any reason the number of Units allocated to you is less than you have subscribed for, then
the excess funds held by the Subscription Agent on your behalf will be returned to you, without interest, as soon as practicable after
the Rights Offering has expired and all prorating calculations and reductions contemplated by the terms of the Rights Offering have been
effected, and we will have no further obligations to you.
Unless
we otherwise agree in writing, a person or entity, together with related persons or entities, may not exercise Subscription Rights (including
Over-Subscription Privileges) to purchase Units that, when aggregated with their existing ownership, would result in such person or entity,
together with any related persons or entities, owning in excess of 19.99% of our issued and outstanding shares of common stock following
the closing of the transactions contemplated by this Rights Offering. If the number of shares allocated to you is less than your subscription
request, then the excess funds held by the Subscription Agent on your behalf will be returned to you, without interest, as soon as practicable
after the Rights Offering has expired and all prorating calculations and reductions contemplated by the terms of the Rights Offering
have been effected, and we will have no further obligations to you.
If
you make payment of the Subscription Price by personal check, your check may not clear in sufficient time to enable you to purchase shares
in this Rights Offering.
Any
personal check used to pay for shares and Warrants to be issued in this Rights Offering must clear prior to the expiration date of this
Rights Offering, and the clearing process may require five or more business days. If you choose to exercise your Subscription Rights,
in whole or in part, and to pay for shares and Warrants by personal check and your check has not cleared prior to the expiration date
of this Rights Offering, you will not have satisfied the conditions to exercise your Subscription Rights and will not receive the shares
and Warrants you wish to purchase.
The
receipt of Subscription Rights may be treated as a taxable distribution to you.
We
believe the distribution of the Subscription Rights in this Rights Offering should be a non-taxable distribution to holders of shares
of common stock, Series B Preferred Stock, Series C Preferred Stock, and holders of Participating Warrants, under Section 305(a) of the
Internal Revenue Code of 1986, as amended, or the Code. Please see the discussion under the heading "Material U.S. Federal Income
Tax Consequences" below. This position is not binding on the IRS, or the courts, however. If this Rights Offering is deemed to
be part of a "disproportionate distribution" under Section 305 of the Code, your receipt of Subscription Rights in this offering
may be treated as the receipt of a taxable distribution to you equal to the fair market value of the Subscription Rights. Any such distribution
would be treated as dividend income to the extent of our current and accumulated earnings and profits, if any, with any excess being
treated as a return of capital to the extent thereof and then as capital gain. Each holder of shares of common stock and each holder
of Participating Warrants is urged to consult his, her or its own tax advisor with respect to the particular tax consequences of this
Rights Offering.
20
Proposed
legislation in the U.S. Congress, including changes in U.S. tax law, may adversely impact the Company and the value of our Subscription
Rights, shares of our common stock and Preferred Stock, and Warrants.
Changes
to U.S. tax laws (which changes may have retroactive application) could adversely affect the Company or holders of our Subscription Rights,
shares of our common stock and Preferred Stock, and Warrants. In recent years, many changes to U.S. federal income tax laws have been
proposed and made, and additional changes to U.S. federal income tax laws are likely to continue to occur in the future.
The
U.S. Congress is currently considering numerous items of legislation which may be enacted prospectively or with retroactive effect, which
legislation could adversely impact the Company's financial performance and the value of our Subscription Rights, shares of our
common stock and Preferred Stock and Warrants. In particular, new proposed legislation known as the "Build Back Better Act"
is under consideration within both houses of U.S. Congress. The proposed legislation includes, without limitation, new corporate minimum
income taxes. If enacted, most of the proposals would be effective for 2022 or later years. The proposed legislation remains subject
to change, and its impact on the Company and holders of our Subscription Rights, shares of our common stock and Preferred Stock, and
Warrants is uncertain.
Exercising
the Subscription Rights limits your ability to engage in certain hedging transactions that could provide you with financial benefits.
By
exercising the Subscription Rights, you are representing to us that you have not entered into any short sale or similar transaction with
respect to our common stock since the Record Date for the Rights Offering. In addition, the Subscription Rights provide that, upon exercise
of the Subscription Right, you agree not to enter into any short sale or similar transaction with respect to our common stock for so
long as you continue to hold Warrants issued in connection with the exercise of the Subscription Right. These requirements prevent you
from pursuing certain investment strategies that could provide you greater financial benefits than you might have realized if the Subscription
Rights did not contain these requirements.
The
Subscription Rights are not transferable, and there is no market for the Subscription Rights.
You
may not sell, transfer, assign or give away your Subscription Rights. Because the Subscription Rights are non-transferable, there is
no market or other means for you to directly realize any value associated with the Subscription Rights. You must exercise the Subscription
Rights to realize any potential value from your Subscription Rights.
There
is no public market for the Preferred Stock in this offering.
There
is no established public trading market for the Preferred Stock, and we do not expect a market to develop. In addition, we do not currently
intend to apply for listing of the Preferred Stock on any securities exchange or recognized trading system. Purchasers of the Preferred
Stock may be unable to resell their shares of Preferred Stock or sell them only at an unfavorable price for an extended period of time,
if at all.
Absence
of a public trading market for the Warrants may limit your ability to resell the Warrants.
There
is no established trading market for the Warrants to be issued pursuant to this offering, and they will not be listed for trading on
Nasdaq or any other securities exchange or market, and the Warrants may not be widely distributed. Purchasers of the Warrants may be
unable to resell the Warrants or sell them only at an unfavorable price for an extended period of time, if at all.
The
market price of our common stock may never exceed the exercise price of the Warrants issued in connection with this offering.
The
Warrants being issued in connection with this offering become exercisable upon issuance and will expire five years from the date of issuance.
The market price of our common stock may never exceed the exercise price of the Warrants prior to their date of expiration. Any Warrants
not exercised by their date of expiration will expire worthless and we will be under no further obligation to the Warrant holder.
The
Warrants contain features that may reduce your economic benefit from owning them.
For
so long as you continue to hold warrants, you will not be permitted to enter into any short sale or similar transaction with respect
to our common stock. This could prevent you from pursuing investment strategies that could provide you greater financial benefits from
owning the warrant.
21
The
dealer-manager is not underwriting, nor acting as placement agent of, the Subscription Rights or the securities underlying the Subscription
Rights.
Maxim
Group LLC is acting as sole dealer-manager for the Rights Offering. As provided in the dealer-manager agreement, the dealer-manager will
provide marketing assistance in connection with this offering. The dealer-manager is not underwriting or placing any of the Subscription
Rights or the shares of our Preferred Stock or Warrants being issued in this offering and is not making any recommendation with respect
to such Subscription Rights (including with respect to the exercise or expiration of such Subscription Rights), shares or Warrants. The
dealer-manager will not be subject to any liability to us in rendering the services contemplated by the dealer-manager agreement except
for any act of bad faith, gross negligence or willful misconduct by the dealer-manager. The Rights Offering may not be successful despite
the services of the dealer-manager to us in this offering.
Since
the Warrants are executory contracts, they may have no value in a bankruptcy or reorganization proceeding.
In
the event a bankruptcy or reorganization proceeding is commenced by or against us, a bankruptcy court may hold that any unexercised Warrants
are executory contracts that are subject to rejection by us with the approval of the bankruptcy court. As a result, holders of the Warrants
may, even if we have sufficient funds, not be entitled to receive any consideration for their Warrants or may receive an amount less
than they would be entitled to if they had exercised their Warrants prior to the commencement of any such bankruptcy or reorganization
proceeding.
We
may amend or modify the terms of the Rights Offering at any time prior to the expiration of the Rights Offering in our sole discretion.
Our
board of directors reserves the right to amend or modify the terms of the Rights Offering in its sole discretion. If we should make any
fundamental changes to the terms of the Rights Offering set forth in this prospectus, we will file a post-effective amendment to the
registration statement in which this prospectus is included, offer potential purchasers who have subscribed for rights the opportunity
to cancel such subscriptions and issue a refund of any money advanced by such stockholder and recirculate an updated prospectus after
the post-effective amendment is declared effective by the SEC. In addition, upon such event, we may extend the Expiration Date of the
Rights Offering to allow holders of rights ample time to make new investment decisions and for us to recirculate updated documentation.
Promptly following any such occurrence, we will issue a press release announcing any changes with respect to the Rights Offering and
the new expiration date. The terms of the Rights Offering cannot be modified or amended after the Expiration Date of the Rights Offering.
Although we do not presently intend to do so, we may choose to amend or modify the terms of the Rights Offering for any reason, including,
without limitation, in order to increase participation in the Rights Offering. Such amendments or modifications may include a change
in the subscription price, although no such change is presently contemplated.
Risks
Related to Our Business
Investors
should carefully consider the risks and uncertainties and all other information contained or incorporated by reference in this prospectus,
including the risks and uncertainties discussed under "
Risk Factors
" in our most recent Annual Report on Form 10-K,
as may be amended from time to time, and in subsequent filings that are incorporated herein by reference. All these risk factors are
incorporated by reference herein in their entirety. These risks and uncertainties are not the only ones facing us. Our business, financial
condition or results of operations could be materially adversely affected by any of these risks. The trading price of our common stock
could decline due to any of these risks, and you may lose all or part of your investment. This prospectus and the incorporated documents
also contain forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated
in these forward-looking statements as a result of certain factors, including the risks mentioned in this prospectus.
22
FORWARD-LOOKING
STATEMENTS
This
prospectus and the documents incorporated herein by reference contain forward-looking statements within the meaning of the Private Securities
Litigation Reform Act of 1995. These statements are based on our management's current beliefs, expectations and assumptions about
future events, conditions and results and on information currently available to us. Discussions containing these forward-looking statements
may be found, among other places, in the Sections entitled "Business," "Risk Factors" and "Management's
Discussion and Analysis of Financial Condition and Results of Operations" incorporated by reference from our most recent Annual
Report on Form 10-K and our Quarterly Reports on Form 10-Q, as well as any amendments thereto, filed with the SEC.
All
statements, other than statements of historical fact, included or incorporated herein regarding our strategy, future operations, financial
position, future revenues, projected costs, plans, prospects and objectives are forward-looking statements. Words such as "expect,"
"anticipate," "intend," "plan," "believe," "seek," "estimate,"
"think," "may," "could," "will," "would," "should," "continue,"
"potential," "likely," "opportunity" and similar expressions or variations of such words are intended
to identify forward-looking statements but are not the exclusive means of identifying forward-looking statements. Examples of our forward-looking
statements include:
●
our
    ability to achieve sufficient market acceptance of any of our products or product candidates;
●
our
    ability to enter into and maintain successful OEM arrangements with third parties;
●
our
    perception of the growth in the size of the potential market for our products and product candidates;
●
our
    estimate of the advantages of our silicon nitride technology platform;
●
our
    ability to become a profitable biomaterial technology company;
●
our
    estimates regarding our needs for additional financing and our ability to obtain such additional financing on suitable terms;
●
our
    ability to succeed in obtaining FDA clearance or approvals for our product candidates;
●
our
    ability to receive CE Marks for our product candidates;
●
the
    timing, costs and other limitations involved in obtaining regulatory clearance or approval for any of our product candidates and
    product candidates and, thereafter, continued compliance with governmental regulation of our existing products and activities;
●
our
    ability to protect our intellectual property and operate our business without infringing upon the intellectual property rights of
    others;
●
our
    ability to obtain sufficient quantities and satisfactory quality of raw materials to meet our manufacturing needs;
●
the
    availability of adequate coverage reimbursement from third-party payers in the United States;
●
our
    estimates regarding anticipated operating losses, future product revenue, expenses, capital requirements and liquidity;
●
our
    ability to maintain and continue to develop our sales and marketing infrastructure;
●
our
    ability to enter into and maintain suitable arrangements with an adequate number of distributors;
●
our
    manufacturing capacity to meet future demand;
●
our
    ability to develop effective and cost-efficient manufacturing processes for our products;
●
our
    reliance on third parties to supply us with raw materials and our non-silicon nitride products and instruments;
●
the
    safety and efficacy of products and product candidates;
●
the
    timing of and our ability to conduct clinical trials;
●
potential
    changes to the healthcare delivery systems and payment methods in the United States or internationally;
●
any
    potential requirement by regulatory agencies that we restructure our relationships with referring surgeons;
●
our
    ability to develop and maintain relationships with surgeons, hospitals and marketers of our products; and
●
our
    ability to attract and retain a qualified management team, engineering team, sales and marketing team, distribution team, design
    surgeons, surgeon advisors and other qualified personnel and advisors.
Because
forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified and some
of which are beyond our control, you should not rely on these forward-looking statements as predictions of future events. The events
and circumstances reflected in our forward-looking statements may not be achieved or occur and actual results could differ materially
from those projected in the forward- looking statements. Moreover, we operate in an evolving environment. New risk factors and uncertainties
may emerge from time to time, and it is not possible for management to predict all risk factors and uncertainties. Except as required
by applicable law, we do not plan to publicly update or revise any forward- looking statements contained herein, whether as a result
of any new information, future events, changed circumstances or otherwise.
This
prospectus and the documents incorporated herein by reference also refer to estimates and other statistical data made by independent
parties and by us relating to market size and growth and other data about our industry. This data involves a number of assumptions and
limitations, and you are cautioned not to give undue weight to such estimates. In addition, projections, assumptions and estimates of
our future performance and the future performance of the markets in which we operate are necessarily subject to a high degree of uncertainty
and risk.
23
USE
OF PROCEEDS
Assuming
that all Units are subscribed for in the Rights Offering, we estimate that the net proceeds from the Rights Offering will be
approximately $             million, after deducting expenses relating
to this offering payable by us estimated at approximately $ million, including dealer-manager fees and expenses which include fees
payable to Ascendiant Capital Markets, LLC, for certain financial advisor services provided in connection with the Rights Offering,
and excluding any proceeds received upon exercise of any Warrants.
We
intend to use the net proceeds from the exercise of Subscription Rights for general corporate purposes, which may include research and
development expenses, capital expenditures, working capital and general and administrative expenses, and potential acquisitions of or
investments in businesses, products and technologies that complement our business, although we have no present commitments or agreements
to make any such acquisitions or investments as of the date of this prospectus. We expect to use any proceeds we receive from the exercise
of Warrants for substantially the same purposes and in substantially the same manner. Pending these uses, we intend to invest the funds
in short-term, investment grade, interest-bearing securities. It is possible that, pending their use, we may invest the net proceeds
in a way that does not yield a favorable, or any, return for us.
Our
management will have broad discretion as to the allocation of the net proceeds from this offering and could use them for purposes other
than those contemplated at the time of commencement of this offering.
24
DILUTION
Purchasers
of Units in the Rights Offering will experience an immediate dilution of the net tangible book value per share of our common stock. Our
net tangible book value as of March 31, 2022 was approximately $14,421,000, or $0.584 per share of our common stock (based upon 24,713,574
shares of our common stock outstanding). Net tangible book value per share is equal to our total tangible assets less our total liabilities,
divided by the number of shares of our outstanding common stock.
Dilution
per share of common stock equals the difference between the amount paid by purchasers of Units in the Rights Offering (ascribing no value
to the Warrants contained in the Units) and the net tangible book value per share of our common stock immediately after the Rights Offering.
Based
on the sale by us in this Rights Offering of a maximum of Units at the Subscription Price of $1,000 per Unit (assuming no exercise of
the Warrants), and after deducting estimated offering expenses and dealer-manager fees and expenses payable by us, our pro forma net
tangible book value as of March 31, 2022 would have been approximately $           million, or $          per share. This represents an immediate increase
in pro forma net tangible book value to existing stockholders of $            per share and an immediate dilution to purchasers in the Rights Offering
of $              per share. The following table illustrates this per-share dilution:
Subscription
    Price
$
1,000.00
Net
    tangible book value per share as of March 31, 2022
$
0.584
Increase
    in net tangible book value per share attributable to Rights Offering
$
Pro
    forma net tangible book value per share as of March 31, 2022, after giving effect to Rights Offering
$
Dilution
    in net tangible book value per share to purchasers in the Rights Offering
$
The
information above is as of March 31, 2022 and excludes:
●
1,291,207
    shares of our common stock issuable upon the exercise of stock options, with a weighted-average exercise price of $2.38 per share,
    and vesting of restricted stock units;
●
19,306
    shares of our common stock issuable upon the conversion of outstanding shares of Series B Preferred Stock;
●
34,428
shares of our common stock issuable upon the
    conversion of outstanding shares of Series C Preferred Stock;
●
1,117,575
shares of our common stock issuable upon the
    exercise of outstanding warrants, with a weighted-average exercise price of $6.43 per share;
●
626,799
    other shares of our common stock reserved for future issuance under our 2020 Equity Incentive Plan.
25
MARKET
PRICE AND DIVIDEND POLICY
Our
shares of common stock are currently quoted on The Nasdaq Capital Market under the symbol "SINT". On July 7, 2022,
the last reported sales price of our common stock on Nasdaq was $0.44.
Holders
of Record
As
of July 5, 2022, we had approximately 157 holders of record of our common stock. Because many of our shares of common stock
are held by brokers and other institutions on behalf of stockholders, this number is not indicative of the total number of stockholders
represented by these stockholders of record.
Dividends
We
have not declared or paid dividends to stockholders since inception and do not plan to pay cash dividends in the foreseeable future.
We currently intend to retain earnings, if any, to finance our growth.
Issuer
Purchases of Equity Securities
None
26
THE
RIGHTS OFFERING
The
Subscription Rights
We
are distributing to the record holders of our common stock, Series B Preferred Stock, Series C Preferred Stock and Participating Warrants,
at no charge, non-transferable Subscription Rights to purchase one Unit at a subscription price of $1,000 per Unit. Each Basic Subscription
Right will entitle you to purchase one share of our preferred stock and            Warrants. Each Warrant will be exercisable for one share of our
common stock at an exercise price of $             per share from the date of issuance through the expiration five years from the date of issuance.
Each record holder of our common stock, Series B Preferred Stock, Series C Preferred Stock, and holders of Participating Warrants, will
receive one Subscription Right for every share of our common stock (including each share of common stock issuable upon conversion of
Series B Preferred Stock, Series C Preferred Stock, and exercise of Participating Warrants) owned by such record holder as of the Record
Date. Each Subscription Right entitles the record holder to a Basic Subscription Right and an Over-Subscription Privilege.
Basic
Subscription Rights
Your
Basic Subscription Rights will entitle you to purchase Units, each comprised of one share of our Preferred Stock and                Warrants. For example,
if you owned 100 shares of common stock as of the Record Date, you will receive 100 Subscription Rights and will have the right to purchase
100 shares of our Preferred Stock and Warrants to purchase             shares of our common stock for $1,000 per Unit, or a total payment of $100,000.
You may exercise all or a portion of your Basic Subscription Rights, or you may choose not to exercise any of your Basic Subscription
Rights. If you do not exercise your Basic Subscription Rights in full, you will not be entitled to exercise your Over-Subscription Privilege.
Additionally,
sufficient Units may not be available to honor your Basic Subscription Right in full. While we are distributing one subscription right
for every share of common stock owned or deemed owned on the record date, we are only seeking to raise $10 million dollars in gross proceeds
in this Rights Offering. As a result, based on (1) 24,719,574 shares of common stock outstanding and (2) 1,171,296 shares
of common stock deemed to be owned and outstanding as of July 7, 2022, by holders of our Series B Preferred Stock, Series C Preferred
Stock and Participating Warrants, we would grant subscription rights to acquire 25,890,870 Units but will only accept subscriptions
for 10,000 Units.
If
exercises of Basic Subscription Rights exceed the number of Units available in the Rights Offering, we will allocate the available Units
pro-rata among the record holders exercising the Basic Subscription Rights in proportion to the number of shares of our common stock
each of those record holders owned or were deemed to own on the record date, relative to the number of shares owned or deemed owned on
the record date by all record holders exercising the basic subscription right. If this pro-rata allocation results in any record holders
receiving a greater number of Units than the record holder subscribed for pursuant to the exercise of the basic subscription rights,
then such record holder will be allocated only that number of Units for which the record holder subscribed, and the remaining Units will
be allocated among all other record holders exercising their Basic Subscription Rights on the same pro rata basis described above. The
proration process will be repeated until all shares have been allocated.
If
for any reason the number of Units allocated to you is less than you have subscribed for, then the excess funds held by the Subscription
Agent on your behalf will be returned to you, without interest, as soon as practicable after the Rights Offering has expired and all
prorating calculations and reductions contemplated by the terms of the Rights Offering have been effected, and we will have no further
obligations to you.
27
Over-Subscription
Privilege
If
you exercise your Basic Subscription Rights in full, you may also choose to exercise your Over-Subscription Privilege. Subject to proration
and the limitations described in this prospectus, we will seek to honor the Over-Subscription Requests in full. If Over-Subscription
Requests exceed the number of Units available, however, we will allocate the available Units pro rata among the common and Series B and
Series C stockholders and eligible warrant holders as of the Record Date exercising the Over-Subscription Privilege in proportion to
the number of shares of our common stock (including each share of common stock issuable upon conversion of Series B Preferred Stock,
Series C Preferred Stock, and exercise of Participating Warrants) each of those stockholders and/or warrant holders owned on the Record
Date, relative to the number of shares owned on the Record Date by all stockholders and warrant holders as of the Record Date exercising
the Over-Subscription Privilege. If this pro rata allocation results in any stockholder or warrant holder receiving a greater number
of Units than the record holder subscribed for pursuant to the exercise of the Over-Subscription Privilege, then such record holder will
be allocated only that number of Units for which the record holder oversubscribed, and the remaining Units will be allocated among all
other stockholders or warrant holders exercising the Over-Subscription Privilege on the same pro rata basis described above. The proration
process will be repeated until all Units have been allocated. American Stock Transfer & Trust Company, LLC, the Subscription Agent
for the Rights Offering, will determine the over-subscription allocation based on the formula described above.
To
the extent the aggregate subscription payment of the actual number of unsubscribed Units available to you pursuant to the Over-Subscription
Privilege is less than the amount you actually paid in connection with the exercise of the Over-Subscription Privilege, you will be allocated
only the number of unsubscribed Units available to you, and any excess subscription payments will be returned to you, without interest
or deduction, with 10 business days after expiration of the Rights Offering.
We
can provide no assurances that you will be entitled to purchase the number of Units issuable upon the exercise of your Over-Subscription
Privilege in full at the expiration of the Rights Offering. We will not be able to satisfy any requests for Units pursuant to the Over-Subscription
Privilege if all of our stockholders exercise their Basic Subscription Rights in full, and we will only honor an Over-Subscription Privilege
to the extent sufficient Units are available following the exercise of Basic Subscription Rights.
Limitation
on the Purchase of Units
You
may only purchase the number of Units purchasable upon exercise of the number of Basic Subscription Rights distributed to you in the
Rights Offering, plus the Over-Subscription Privilege, if any. Accordingly, the number of Units that you may purchase in the Rights Offering
is limited by the number of shares of our common stock (including each share of common stock issuable upon conversion of Series B Preferred
Stock, Series C Preferred Stock, and exercise of Participating Warrants) you held on the Record Date and by the extent to which other
stockholders or warrant holders exercise their Basic Subscription Rights and Over-Subscription Privileges, all of which we cannot determine
prior to completion of the Rights Offering. However, due to stock exchange restrictions, we will not issue Units in the Rights Offering
to the extent that a holder would beneficially own, together with any other person with whom such holder's securities may be aggregated
under applicable law, more than 19.99% of our outstanding shares of common stock.
Subscription
Price
The
Subscription Price is $1,000 per Unit. The Subscription Price does not necessarily bear any relationship to our past or expected future
results of operations, cash flows, current financial condition, or any other established criteria for value. No change will be made to
the Subscription Price by reason of changes in the trading price of our common stock or other factor prior to the expiration of this
Rights Offering.
Determination
of Subscription Price
In
the determining the Subscription Price, the board of directors considered a variety of factors including those listed below:
●
our
    need to raise capital in the near term to continue our operations;
●
the
    current and historical trading prices of our common stock;
●
a
    price that would increase the likelihood of participation in the Rights Offering;
●
the
    cost of capital from other sources;
●
the
    value of the common stock being issued as a component of the Unit;
●
the
    value of the Warrant being issued as a component of the Unit; and
●
comparable
    precedent transactions, including the percentage of shares offered, the terms of the subscription rights being offered, the subscription
    price and the discount that the subscription price represents to the immediately prevailing closing prices for these offerings.
28
The
Subscription Price does not necessarily bear any relationship to any established criteria for value. No valuation consultant or investment
banker has opined upon the fairness or adequacy of the Subscription Price. You should not consider the Subscription Price as an indication
of actual value of our company or our common stock. The market price of our common stock may decline during or after the Rights Offering.
We cannot predict the price at which our shares of common stock will trade after the Rights Offering. You should obtain a current price
quote for our common stock and perform an independent assessment of our Warrants before exercising your Subscription Rights and make
your own assessment of our business and financial condition, our prospects for the future, and the terms of this Rights Offering. Once
made, all exercises of Subscription Rights are irrevocable.
No
Short-Sales
By
exercising the Subscription Rights, you are representing to us that you have not entered into any short sale or similar transaction with
respect to our common stock since the Record Date for the Rights Offering. In addition, the Subscription Rights provide that, upon exercise
of the Subscription Right, you represent that you have not since the Record Date and, for so long as you continue to hold Preferred Stock
or Warrants issued in connection with the exercise of the Subscription Right, agree to not to enter into any short sale or similar transaction
with respect to our common stock. These requirements prevent you from pursuing certain investment strategies that could provide you greater
financial benefits than you might have realized if the Subscription Rights did not contain these requirements.
No
Recombination
The
Preferred Stock and Warrants comprising the Units will separate upon the exercise of the Subscription Rights, and the Units will not
trade as a separate security. Holders may not recombine shares of Preferred Stock and Warrants to receive a Unit.
Non-Transferability
of Subscription Rights
The
Subscription Rights are non-transferable (other than by operation of law) and, therefore, you may not sell, transfer, assign or give
away your Subscription Rights to anyone. The Subscription Rights will not be listed for trading on any stock exchange or market.
Expiration
Date; Extension
The
subscription period, during which you may exercise your Subscription Rights, expires at 5:00 p.m., Eastern Time, on        ,          2022, which is
the expiration of the Rights Offering. If you do not exercise your Subscription Rights before that time, your Subscription Rights will
expire and will no longer be exercisable. We will not be required to issue shares to you if the Subscription Agent receives your Rights
Certificate or your subscription payment after that time. We have the option to extend the Rights Offering in our sole discretion for
any reason up to an additional 45 days, although we do not presently intend to do so. We may extend the Rights Offering by giving oral
or written notice to the Subscription Agent before the Rights Offering expires. If we elect to extend the Rights Offering, we will issue
a press release announcing the extension no later than 9:00 a.m., Eastern Time, on the next business day after the most recently announced
expiration date of the Rights Offering.
If
you hold your shares of common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating Warrants in the name of a
broker, dealer, bank or other nominee, the nominee will exercise the Subscription Rights on your behalf in accordance with your instructions.
Please note that the nominee may establish a deadline that may be before 5:00 p.m., Eastern Time, on                , 2022, which is the expiration
date that we have established for the Rights Offering.
29
Termination
We
may terminate the Rights Offering at any time and for any reason prior to the expiration of the Rights Offering. If we terminate the
Rights Offering, we will issue a press release notifying stockholders and the public of the termination no later than 9:00 a.m., Eastern
Time, on the next business day after the most recently announced expiration date of the Rights Offering.
Return
of Funds upon Completion or Termination
The
Subscription Agent will hold funds received in payment for shares in a segregated account pending completion of the Rights Offering.
The Subscription Agent will hold this money until the Rights Offering is completed or is terminated. To the extent you properly exercise
your Over-Subscription Privilege for an amount of Units that exceeds the number of unsubscribed Units available to you, any excess subscription
payments will be returned to you within 10 business days after the expiration of the Rights Offering, without interest or deduction.
If the Rights Offering is terminated for any reason, all subscription payments received by the Subscription Agent will be returned within
10 business days, without interest or deduction.
Shares
of Our Capital Stock and Warrants Outstanding After the Rights Offering
Assuming
no other transactions by us involving our capital stock prior to the expiration of the Rights Offering, and if the Rights Offering is
fully subscribed, upon consummation of the Rights Offering we will have 24,719,574 shares of common stock issued and outstanding,
26 shares of Series B Preferred Stock issued and outstanding, 51 shares of Series C Preferred Stock Outstanding, 10,000 shares of Preferred
Stock issued and outstanding, and              Warrants to purchase
additional shares of our common stock issued and outstanding. The exact number of shares of Preferred Stock and Warrants that we will issue in this offering will depend on the number of Units
that are subscribed for in the Rights Offering.
Methods
for Exercising Subscription Rights
The
exercise of Subscription Rights is irrevocable and may not be cancelled or modified. You may exercise your Subscription Rights as follows:
Subscription
by Record Holders
If,
as of the Record Date, you are a holder of record of common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating
Warrants, the number of Units you may purchase pursuant to your Subscription Rights is indicated on the enclosed Rights Certificate.
You may exercise your Subscription Rights by properly completing and executing the Rights Certificate and forwarding it, together with
your full payment, to the Subscription Agent at the address given below under "Subscription Agent," to be received before
5:00 p.m., Eastern Time, on              , 2022.
Subscription
by Beneficial Owners
If
as of the Record Date you are a beneficial owner of shares of our common stock, Series B Preferred Stock, Series C Preferred Stock, or
Participating Warrants that are registered in the name of a broker, dealer, bank or other nominee, you will not receive a Rights Certificate.
Instead, we will issue one Subscription Right to such nominee record holder for all shares of our common stock, Series B Preferred Stock,
Series C Preferred Stock, or Participating Warrants held by such nominee at the Record Date. If you are not contacted by your nominee,
you should promptly contact your nominee in order to subscribe for shares in the Rights Offering and follow the instructions provided
by your nominee.
To
properly exercise your Over-Subscription Privilege, you must deliver the subscription payment related to your Over-Subscription Privilege
before the Rights Offering expires. Because we will not know the total number of unsubscribed Units before the Rights Offering expires,
if you wish to maximize the number of shares you purchase pursuant to your Over-Subscription Privilege, you will need to deliver payment
in an amount equal to the aggregate subscription payment for the maximum number of Units that you wish to purchase.
30
Payment
Method
Payments
must be made in full in U.S. currency by personal check, certified check or bank draft, or by wire transfer, and payable to "American
Stock Transfer and Trust Company, LLC, as Subscription Agent for SINTX Technologies, Inc." You must timely pay the full subscription
payment, including payment for the Over-Subscription Privilege, for the full number of shares of our common stock you wish to acquire
pursuant to the exercise of Subscription Rights by delivering a:
●
certified
    or personal check drawn against a U.S. bank payable to "American Stock Transfer and Trust Company, LLC, as Subscription Agent
    for SINTX Technologies, Inc.";
●
U.S.
    Postal money order payable to "American Stock Transfer and Trust Company, LLC, as Subscription Agent for SINTX Technologies,
    Inc."; or
●
wire
    transfer of immediately available funds directly to the account maintained by American Stock Transfer and Trust Company, LLC, as
    Subscription Agent, for purposes of accepting subscriptions in this Rights Offering at:
If
you elect to exercise your Subscription Rights, you should consider using a wire transfer or certified check drawn on a U.S. bank to
ensure that the Subscription Agent receives your funds before the Rights Offering expires. If you send a personal check, payment will
not be deemed to have been received by the Subscription Agent until the check has cleared. The clearinghouse may require five or more
business days to clear a personal check. Accordingly, holders who wish to pay the Subscription Price by means of a personal check should
make payment sufficiently in advance of the expiration of the Rights Offering to ensure that the payment is received and clears by that
date. If you send a certified check, payment will be deemed to have been received by the Subscription Agent immediately upon receipt
of such instrument.
You
should read the instruction letter accompanying the Rights Certificate carefully and strictly follow it.
DO NOT SEND RIGHTS CERTIFICATES
OR PAYMENTS DIRECTLY TO US
. We will not consider your subscription received until the Subscription Agent has received delivery of
a properly completed and duly executed Rights Certificate and payment of the full subscription payment.
The
method of delivery of Rights Certificates and payment of the subscription payment to the Subscription Agent will be at the risk of the
holders of Subscription Rights. If sent by mail, we recommend that you send those certificates and payments by registered mail, properly
insured, with return receipt requested, or by overnight courier, and that you allow a sufficient number of days to ensure delivery to
the Subscription Agent and clearance of payment before the Rights Offering expires.
Missing
or Incomplete Subscription Forms or Payment
If
you fail to complete and sign the Rights Certificate or otherwise fail to follow the subscription procedures that apply to the exercise
of your Subscription Rights before the Rights Offering expires, the Subscription Agent will reject your subscription or accept it to
the extent of the payment received. Neither we nor our Subscription Agent undertakes any responsibility or action to contact you concerning
an incomplete or incorrect subscription form, nor are we under any obligation to correct such forms. We have the sole discretion to determine
whether a subscription exercise properly complies with the subscription procedures.
If
you send a payment that is insufficient to purchase the number of shares you requested, or if the number of shares you requested is not
specified in the forms, the payment received will be applied to exercise your Subscription Rights to the fullest extent possible based
on the amount of the payment received. Any excess subscription payments received by the Subscription Agent will be returned, without
interest or deduction, within 10 business days following the expiration of the Rights Offering.
Issuance
of Preferred Stock and Warrants
The
shares of Preferred Stock and Warrants that are purchased in the Rights Offering as part of the Units will be issued in book-entry, or
uncertificated, form meaning that you will receive a DRS account statement from our transfer agent reflecting ownership of these securities
if you are a holder of record. If you hold your shares of common stock, Series B Preferred Stock, Series C Preferred Stock, or Participating
Warrants in the name of a bank, broker, dealer, or other nominee, DTC will credit your account with your nominee with the securities
you purchased in the Rights Offering.
31
Subscription
and Information Agent
The
Subscription Agent for the Rights Offering is American Stock Transfer & Trust Company, LLC and the Information Agent is D.F. King
& Co., Inc. The address to which Rights Certificates and payments should be mailed or delivered by overnight courier is provided
below. If sent by mail, we recommend that you send documents and payments by registered mail, properly insured, with return receipt requested,
and that you allow a sufficient number of days to ensure delivery to the Subscription Agent and clearance or payment before the Rights
Offering expires. Do not send or deliver these materials to us.
If
delivering by mail, hand or overnight courier:
American
Stock Transfer & Trust Company, LLC
Operations
Center
Attn:
Reorganization Department
6201
15
th
Avenue
Brooklyn,
New York 11219
If
you deliver the Rights Certificates in a manner different than that described in this prospectus, we may not honor the exercise of your
Subscription Rights.
You
should direct any questions or requests for assistance concerning the method of subscribing for the shares of our common stock or for
additional copies of this prospectus to the Information Agent, D.F. King & Co., Inc., toll free at (866) 620-2536, or by mail at
D.F. King & Co., Inc., 48 Wall Street, 22nd Floor, New York, NY 10005.
Warrant
Agent
The
warrant agent for the Warrants is American Stock Transfer & Trust Company, LLC.
No
Fractional Shares
We
will not issue fractional shares of common stock in the Rights Offering. We will only distribute Subscription Rights to acquire whole
Units, rounded down to the nearest whole number of underlying common shares giving rise to such Subscription Rights. Any excess subscription
payments received by the Subscription Agent will be returned within 10 business days after expiration of the Rights Offering, without
interest or deduction. Similarly, no fractional shares of common stock will be issued in connection with the conversion of the Preferred
Stock or the exercise of a Warrant. Instead, for any such fractional share that would otherwise have been issuable upon conversion of
shares of Preferred Stock, we may, at our election, pay a cash payment equal to such fraction multiplied by the conversion price or round
up to the next whole share, and for any such fractional share that would have otherwise been issued upon exercise of Warrants, we will
round up such fraction to the next whole share.
Notice
to Brokers and Nominees
If
you are a broker, dealer, bank or other nominee holder that holds shares of our common stock, Series B Preferred Stock, Series C Preferred
Stock, or Participating Warrants for the account of others on the Record Date, you should notify the beneficial owners for whom you are
the nominee of the Rights Offering as soon as possible to learn their intentions with respect to exercising their Subscription Rights.
If a beneficial owner of our common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants so instructs,
you should complete the Rights Certificate and submit it to the Subscription Agent with the proper subscription payment by the expiration
date. You may exercise the number of Subscription Rights to which all beneficial owners in the aggregate otherwise would have been entitled
had they been direct holders of our common stock on the Record Date, provided that you, as a nominee record holder, make a proper showing
to the Subscription Agent by submitting the form entitled "Nominee Holder Certification," which is provided with your Rights
Offering materials. If you did not receive this form, you should contact our Subscription Agent to request a copy.
32
Validity
of Subscriptions
We
will resolve all questions regarding the validity and form of the exercise of your Subscription Rights, including time of receipt and
eligibility to participate in the Rights Offering. Our determination will be final and binding. Once made, subscriptions are irrevocable;
we will not accept any alternative, conditional, or contingent subscriptions. We reserve the absolute right to reject any subscriptions
not properly submitted or the acceptance of which would be unlawful. You must resolve any irregularities in connection with your subscriptions
before the expiration date of the Rights Offering, unless we waive them in our sole discretion. Neither we nor the Subscription Agent
is under any duty to notify you or your representative of defects in your subscriptions. A subscription will be considered accepted,
subject to our right to withdraw or terminate the Rights Offering, only when the Subscription Agent receives a properly completed and
duly executed Rights Certificate and any other required documents and the full subscription payment including final clearance of any
personal check. Our interpretations of the terms and conditions of the Rights Offering will be final and binding.
Stockholder
Rights
You
will have no rights as a holder of the shares of our common stock issuable upon conversion of the Preferred Stock issued in the Rights
Offering until such Preferred Stock is converted into common stock and issued in book-entry form or your account at your broker, dealer,
bank or other nominee is credited with the shares of our common stock. Holders of Warrants issued in connection with the Rights Offering
will not have rights as holders of our common stock until such Warrants are exercised and the shares of common stock underlying the Warrants
are issued to the holder.
Foreign
Stockholders
We
will not mail this prospectus or Rights Certificates to stockholders with addresses that are outside the United States or that have
an army post office or foreign post office address. The Subscription Agent will hold these Rights Certificates for their account. To
exercise Subscription Rights, our foreign stockholders must notify the Subscription Agent prior to 5:00 p.m., Eastern Time, on                 ,
2022, the third business day prior to the expiration date, of your exercise of Subscription Rights and provide evidence satisfactory
to us, such as a legal opinion from local counsel, that the exercise of such Subscription Rights does not violate the laws of the
jurisdiction in which such stockholder resides and payment by a U.S. bank in U.S. dollars before the expiration of the offer. If no
notice is received by such time or the evidence presented is not satisfactory to us, the Subscription Rights represented thereby
will expire.
No
Revocation or Change
Once
you submit the Rights Certificate or have instructed your nominee of your subscription request, you are not allowed to revoke or change
the exercise or request a refund of monies paid. All exercises of Subscription Rights are irrevocable, even if you learn information
about us that you consider to be unfavorable. You should not exercise your Subscription Rights unless you are certain that you wish to
purchase shares at the Subscription Price. If we should make any fundamental changes to the terms set forth in this prospectus, we will
(i) file a post-effective amendment to the registration statement of which this prospectus forms a part, (ii) offer potential purchasers
who have subscribed for rights the opportunity to cancel such subscriptions, and (iii) issue a refund of any money advanced by such stockholder
or eligible warrant holder and recirculate an updated prospectus after the post-effective amendment is declared effective with the SEC.
U.S.
Federal Income Tax Treatment of Rights Distribution
For
U.S. federal income tax purposes, we do not believe holders of shares of our common stock, Series B Preferred Stock, Series C Preferred
Stock or Participating Warrants should recognize income or loss upon receipt or exercise of a Subscription Right, but the receipt and
exercise of the Subscription Rights is unclear in certain respects. See "Material U.S. Federal Income Tax Consequences."
33
No
Recommendation to Rights Holders
Our
board of directors is not making a recommendation regarding your exercise of the Subscription Rights. Stockholders who exercise Subscription
Rights risk investment loss on money invested. We cannot predict the price at which our shares of common stock will trade after the Rights
Offering. You should make your investment decision based on your assessment of our business and financial condition, our prospects for
the future and the terms of this Rights Offering. Please see "Risk Factors" for a discussion of some of the risks involved
in investing in our common stock.
Fees
and Expenses
We
will pay all fees charged by the Subscription Agent and the Information Agent, and by the dealer-manager. You are responsible for paying
any other commissions, fees, taxes or other expenses incurred in connection with the exercise of your Subscription Rights.
Listing
The
Subscription Rights may not be sold, transferred, assigned or given away to anyone, and will not be listed for trading on any stock exchange
or market. There is no public trading market for the Preferred Stock or the Warrants and they will not be listed for trading on Nasdaq
or any other securities exchange or market. The shares of our common stock issuable upon the conversion of the Preferred Stock and the
exercise of the Warrants to be issued in the Rights Offering are traded on Nasdaq under the symbol "SINT."
Important
Do
not send Rights Certificates directly to us. You are responsible for choosing the payment and delivery method for your Rights Certificate
and you bear the risks associated with such delivery. If you choose to deliver your Rights Certificate and payment by mail, we recommend
that you use registered mail, properly insured, with return receipt requested. We also recommend that you allow a sufficient number of
days to ensure delivery to the Subscription Agent and clearance of payment prior to the expiration time.
Distribution
Arrangements
Maxim
Group LLC will act as dealer-manager for the Rights Offering. The dealer-manager will provide marketing assistance and advice to us in
connection with the Rights Offering and will use its best efforts to solicit the exercise of Subscription Rights and participation in
the Over-Subscription Privilege. The dealer-manager is not underwriting or placing any of the Subscription Rights or the shares of our
Preferred Stock or Warrants to be issued in the Rights Offering and does not make any recommendation with respect to such Subscription
Rights (including with respect to the exercise or expiration of such Subscription Rights), shares or Warrants. We have agreed to pay
the dealer-manager certain fees and to reimburse the dealer-manager for certain out-of-pocket expenses incurred in connection with this
offering. See "Plan of Distribution."
Other
Matters
We
are not making the Rights Offering in any state or other jurisdiction in which it is unlawful to do so, nor are we distributing or accepting
any offers to purchase any units from subscription rights holders who are residents of those states or other jurisdictions or who are
otherwise prohibited by federal or state laws or regulations from accepting or exercising the subscription rights. We may delay the commencement
of the Rights Offering in those states or other jurisdictions, or change the terms of the Rights Offering, in whole or in part, in order
to comply with the securities laws or other legal requirements of those states or other jurisdictions. Subject to state securities laws
and regulations, we also have the discretion to delay allocation and distribution of any shares you may elect to purchase by exercise
of your subscription privileges in order to comply with state securities laws. We may decline to make modifications to the terms of the
Rights Offering requested by those states or other jurisdictions, in which case, if you are a resident in those states or jurisdictions
or if you are otherwise prohibited by federal or state laws or regulations from accepting or exercising the subscription rights, you
will not be eligible to participate in the Rights Offering. However, we are not currently aware of any states or jurisdictions that would
preclude participation in the Rights Offering.
34
MATERIAL
U.S. FEDERAL INCOME TAX CONSEQUENCES
The
following discussion describes the material U.S. federal income tax consequences of the receipt and exercise (or expiration) of the Subscription
Rights acquired through the Rights Offering, the ownership and disposition of shares of our Preferred Stock and Warrants received upon
exercise of the Subscription Rights and the ownership and disposition of the shares of common stock received upon the conversion of our
Preferred Stock or the exercise of the Warrants. This discussion does not purport to be a complete analysis of all potential tax consequences.
The effects of other U.S. federal tax laws, such as estate and gift tax laws, alternative minimum tax laws, net investment tax laws,
and any applicable state, local or non-U.S. tax laws are not discussed. This discussion is based on the U.S. Internal Revenue Code of
1986, as amended, or the Code, U.S. Treasury Regulations promulgated thereunder, judicial decisions, and published rulings and administrative
pronouncements of the U.S. Internal Revenue Service, or the IRS, in each case in effect as of the date hereof. These authorities may
change or be subject to differing interpretations. Any such change or differing interpretation may be applied retroactively in a manner
that could adversely affect a holder of the Subscription Rights, shares of our Preferred Stock, Warrants or shares of our common stock.
This summary does not discuss the potential effects, whether adverse or beneficial, of any proposed legislation that, if enacted, could
be applied on a retroactive or prospective basis. We have not sought and will not seek any rulings from the IRS regarding the matters
discussed below. There can be no assurance the IRS or a court will not take a contrary position to that discussed below regarding the
tax consequences of the receipt of Subscription Rights through the Rights Offering by persons holding shares of our common stock and
warrants entitled to receive Subscription Rights pursuant to this Rights Offering (which we refer to as Participating Warrants), the
exercise (or expiration) of the Subscription Rights, the acquisition, ownership and disposition of shares of our Preferred Stock, and
the acquisition, ownership and disposition (or expiration) of Warrants, each acquired upon exercise of the Subscription Rights, and the
acquisition, ownership and disposition of shares of our common stock acquired upon conversion of our Preferred Stock or exercise of the
Warrants.
This
discussion is limited to the Subscription Rights acquired through the Rights Offering, shares of our Preferred Stock and Warrants acquired
upon exercise of Subscription Rights and shares of our common stock acquired upon conversion of our Preferred Stock or exercise of the
Warrants, in each case, that are held as a "capital asset" within the meaning of Section 1221 of the Code (generally, property
held for investment). This discussion does not address all U.S. federal income tax consequences relevant to a holder's particular
circumstances, including the impact of the alternative minimum tax or the unearned income Medicare contribution tax. In addition, it
does not address consequences relevant to holders subject to particular rules, including, without limitation:
●
U.S.
    expatriates and former citizens or long-term residents of the United States;
●
U.S.
    holders (as defined below) that are subject to taxing jurisdictions other than, or in addition to, the United States or otherwise
    hold our common stock, the Subscription Rights, shares of our Preferred Stock, Warrants or shares of our common stock in connection
    with a trade or business, permanent establishment, or fixed base outside the United States;
●
corporations
    organized outside the United States, any state thereof, or the District of Columbia that are nonetheless treated as U.S. persons
    for U.S. federal income tax purposes;
●
persons
    holding our common stock, the Subscription Rights, shares of our Preferred Stock, Warrants or shares of our common stock as part
    of a hedge, straddle or other risk reduction strategy or as part of a conversion transaction or other integrated investment;
●
banks,
    insurance companies, underwriters, and other financial institutions;
●
brokers,
    dealers or traders in securities or currencies or traders that elect to mark-to-market their securities;
●
"controlled
    foreign corporations," "passive foreign investment companies," and corporations that accumulate earnings to avoid
    U.S. federal income tax;
●
partnerships
    or other entities or arrangements treated as partnerships or other pass-through entities for U.S. federal income tax purposes (and
    investors therein) and S corporations (and shareholders thereof);
35
●
real
    estate investment trusts, regulated investment companies, grantor trusts, tax-exempt organizations or governmental organizations;
●
persons
    deemed to sell the Subscription Rights, shares of Preferred Stock, or Warrants or shares of our common stock under the constructive
    sale provisions of the Code;
●
persons
    subject to special tax accounting rules as a result of any item of gross income being taken into account in an applicable financial
    statement (as defined in the Code);
●
persons
    for whom our stock constitutes "qualified small business stock" within the meaning of Section 1202 of the Code;
●
persons
    who received, hold or will receive shares of our common stock, Participating Warrants, the Subscription Rights, shares of our Preferred
    Stock or Warrants pursuant to the exercise of any employee stock option or otherwise as compensation and persons who hold restricted
    common stock;
●
tax-qualified
    retirement plans, individual retirement accounts, or other tax-deferred accounts;
●
persons
    subject to the alternative minimum tax; and
●
U.S.
    holders that have a functional currency other than the U.S. dollar.
If
an entity treated as a partnership for U.S. federal income tax purposes holds shares of our common stock, the Subscription Rights, shares
of our Preferred Stock and Warrants acquired upon exercise of Subscription Rights or shares of our common stock acquired upon conversion
of our Preferred Stock or exercise of the Warrants, as the case may be, the tax treatment of a partner in the partnership will depend
on the status of the partner, the activities of the partnership and certain determinations made at the partner level. Accordingly, partnerships
and the partners in such partnerships should consult their own tax advisors regarding the U.S. federal income tax consequences to them.
THIS
DISCUSSION IS FOR INFORMATION PURPOSES ONLY AND IS NOT TAX ADVICE. INVESTORS SHOULD CONSULT THEIR OWN TAX ADVISORS WITH RESPECT TO THE
APPLICATION OF THE U.S. FEDERAL INCOME TAX LAWS TO THEIR PARTICULAR SITUATIONS AS WELL AS ANY TAX CONSEQUENCES OF THE RECEIPT, OWNERSHIP
AND EXERCISE OF SUBSCRIPTION RIGHTS, THE ACQUISITION, OWNERSHIP, AND DISPOSITION OF SHARES OF OUR PREFERRED STOCK AND WARRANTS ACQUIRED
UPON EXERCISE OF SUBSCRIPTION RIGHTS, AND SHARES OF OUR COMMON STOCK ACQUIRED UPON CONVERSION OF PREFERRED STOCK OR EXERCISE OF WARRANTS
ARISING UNDER THE U.S. FEDERAL ESTATE OR GIFT TAX LAWS OR UNDER THE LAWS OF ANY STATE, LOCAL OR NON-U.S. TAXING JURISDICTION OR UNDER
ANY APPLICABLE INCOME TAX TREATY.
Tax
Considerations Applicable to U.S. Holders
Definition
of a U.S. Holder
For
purposes of this discussion, a "U.S. holder" is any beneficial owner of shares of our common stock, our Subscription Rights,
shares of our Preferred Stock and Warrants acquired upon exercise of Subscription Rights or shares of our common stock acquired upon
conversion of our Preferred Stock or exercise of Warrants, as the case may be, that, for U.S. federal income tax purposes, is:
●
an
    individual who is a citizen or resident of the United States;
●
a
    corporation (or other entity treated as a corporation for U.S. federal income tax purposes) created or organized under the laws of
    the United States, any state thereof, or the District of Columbia;
●
an
    estate, the income of which is subject to U.S. federal income tax regardless of its source; or
●
a
    trust that (1) is subject to the primary supervision of a U.S. court and the control of one or more United States persons (within
    the meaning of Section 7701(a)(30) of the Code), or (2) has made a valid election under applicable U.S. Treasury Regulations to continue
    to be treated as a United States person.
36
Receipt
of Subscription Rights
Although
the authorities governing transactions such as this Rights Offering are complex and do not speak directly to the consequences of certain
aspects of this Rights Offering, including the inclusion of the right to purchase Warrants in the Subscription Rights (rather than the
right to purchase only shares of our Preferred Stock), the distribution of Subscription Rights to holders of Participating Warrants and
the effects of the Over-Subscription Privilege, we do not believe a U.S. holder's receipt of Subscription Rights pursuant to the
Rights Offering should be treated as a taxable distribution with respect to its existing shares of common stock, Series B Preferred Stock,
Series C Preferred Stock or Participating Warrants, as applicable, for U.S. federal income tax purposes. Section 305(a) of the Code generally
provides that the receipt by a stockholder, or a holder of rights to acquire stock, of a right to acquire stock or warrants is not included
in the taxable income of the stockholder; however, the general non-recognition rule in Section 305(a) of the Code is subject to exceptions
described in Section 305(b) of the Code, which include "disproportionate distributions." A disproportionate distribution
is generally a distribution or a series of distributions, including deemed distributions, that has the effect of the receipt of cash
or other property by some stockholders (including holders of rights to acquire stock and holders of debt instruments convertible into
stock) and an increase in the proportionate interest of other stockholders (including holders of rights to acquire stock and holders
of debt instruments convertible into stock) in a corporation's assets or earnings and profits.
During the last 36 months, we
have not made any distributions of cash or property (other than stock or rights to acquire stock) with respect to: (i) our common stock
or (ii) options or warrants to acquire our common stock. Currently we do not intend to make any future distributions of cash or property
(other than stock or rights to acquire stock) with respect to: (i) our common stock or (ii) options or warrants to acquire our common
stock; however, there is no guarantee that we will not make such distributions in the future. In addition, we do not currently have any
convertible debt outstanding nor do we currently intend to issue any convertible debt
.
The
position regarding the non-taxable treatment of the Subscription Right distribution is not binding on the IRS, or the courts. If this
position is finally determined by the IRS or a court to be incorrect, whether because, contrary to our expectations, distributions of
cash or property (other than stock or rights to acquire stock) are made with respect to our common stock, options or warrants, because
the issuance of the Subscription Rights is a "disproportionate distribution" or otherwise, the fair market value of the Subscription
Rights would be taxable to U.S. holders of our common stock as a dividend to the extent of the U.S. holder's pro rata share of
our current and accumulated earnings and profits, if any, with any excess being treated as a return of capital to the extent thereof
and then as capital gain.
Although no assurance can be given, we anticipate that we will not have current and accumulated earnings
and profits through the end of 2022
. Further, if the position regarding the non-taxable treatment of the Subscription Rights distribution
is incorrect, the treatment of holders of Participating Warrants is not clear, and it may differ from, and may be more adverse than,
the treatment of the Subscription Rights distribution to the holders of common stock.
The
following discussion is based upon the treatment of the Subscription Right issuance as a non-taxable distribution with respect to a U.S.
holder's' existing shares of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants for
U.S. federal income tax purposes.
Tax
Basis in the Subscription Rights
If
the fair market value of the Subscription Rights a U.S. holder receives is less than 15% of the fair market value of the U.S. holder's
existing shares of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants (in each case, with respect
to which the Subscription Rights are distributed) on the date the U.S. holder receives the Subscription Rights, the Subscription Rights
will be allocated a zero tax basis for U.S. federal income tax purposes, unless the U.S. holder elects to allocate the tax basis in the
holder's existing shares of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants between
the existing shares of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants and the Subscription
Rights in proportion to the relative fair market values of the existing shares of common stock, Series B Preferred Stock, Series C Preferred
Stock or Participating Warrants and the Subscription Rights determined on the date of receipt of the Subscription Rights. If a U.S. holder
chooses to allocate tax basis between the holder's existing common stock, Series B Preferred Stock, Series C Preferred Stock or
Participating Warrants and the Subscription Rights, the U.S. holder must make this election on a statement included with the holder's
timely filed U.S. federal income tax return (including extensions) for the taxable year in which the U.S. holder receives the Subscription
Rights. Such an election is irrevocable.
37
However,
if the fair market value of the Subscription Rights a U.S. holder receives is 15% or more of the fair market value of the holder's
existing shares of common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants on the date the U.S. holder
receives the Subscription Rights, then the U.S. holder must allocate tax basis in the existing shares of common stock, Series B Preferred
Stock, Series C Preferred Stock or Participating Warrants between those shares or warrants and the Subscription Rights the U.S. holder
receives in proportion to their fair market values determined on the date the U.S. holder receives the Subscription Rights. Please refer
to the discussion below regarding the U.S. tax treatment of a U.S. holder that, at the time of the receipt of the Subscription Right,
no longer holds the common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants with respect to which
the Subscription Right was distributed.
The
fair market value of the Subscription Rights on the date that the Subscription Rights are distributed is uncertain and the fair market
value of the Participating Warrants is uncertain, and we have not obtained, and do not intend to obtain, an appraisal of the fair market
value of the Subscription Rights or the Participating Warrants on that date. In determining the fair market value of the Subscription
Rights, U.S. holders should consider all relevant facts and circumstances, including without limitation any difference between the Subscription
Price of the Subscription Rights and the trading price of our shares of common stock on the date that the Subscription Rights are distributed,
the fair market value and the conversion terms of the Preferred Stock, the exercise price of the Warrants, the length of the period during
which the Subscription Rights may be exercised and the fact that the Subscription Rights are non-transferable. In determining the fair
market value of the Participating Warrants, U.S. holders should consider all relevant facts and circumstances, including without limitation
the difference between the exercise price of the Participating Warrants and the trading price of our common stock on the date that the
Subscription Rights are distributed, the length of the period during which the Participating Warrants may be exercised, the nature of
the adjustment provisions in the Participating Warrants that may affect the economics of the exercise of such Participating Warrants
and any limitations of the transferability of the Participating Warrants.
Exercise
of Subscription Rights
A
U.S. holder will not recognize gain or loss upon the exercise of a Subscription Right received in the Rights Offering. A U.S. holder's
adjusted tax basis, if any, in the Subscription Right plus the Subscription Price should be allocated between the share of Preferred
Stock and the Warrants acquired upon exercise of the Subscription Right. We believe that the tax basis in the common stock or Participating
Warrants upon which the Subscription Rights were issued which is allocated to the Subscription Rights under the prior section entitled
"—Tax Basis in the Subscription Rights" should be further allocated between the shares of Preferred Stock and the Warrants
acquired upon exercise of the Subscription Right in proportion to their relative fair market values on the date the Subscription Rights
were distributed. The Subscription Price should be allocated between the shares of Preferred Stock and the Warrant acquired upon exercise
of the Subscription Right in proportion to their relative fair market values on the exercise date. These allocations will establish the
U.S. holder's initial tax basis for U.S. federal income tax purposes in the shares of Preferred Stock and Warrants received upon
exercise of such U.S. holder's Subscription Right. The holding period of a share of Preferred Stock or a Warrant acquired upon
exercise of a Subscription Right in the Rights Offering will begin on the date of exercise.
If,
at the time of the receipt or exercise of the Subscription Right, the U.S. holder no longer holds the common stock, Series B Preferred
Stock, Series C Preferred Stock or Participating Warrant with respect to which the Subscription Right was distributed, then certain aspects
of the tax treatment of the receipt and exercise of the Subscription Right are unclear, including (1) the allocation of the tax basis
between the shares of our common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants previously sold
and the Subscription Right, (2) the impact of such allocation on the amount and timing of gain or loss recognized with respect to the
shares of our common stock, Series B Preferred Stock, Series C Preferred Stock or Participating Warrants previously sold, and (3) the
impact of such allocation on the tax basis of the shares of our Preferred Stock and Warrants acquired upon exercise of the Subscription
Right. If a U.S. holder exercises a Subscription Right received in the Rights Offering after disposing of shares of our common stock,
Series B Preferred Stock, Series C Preferred Stock or Participating Warrants with respect to which the Subscription Right is received,
the U.S. holder should consult its own tax advisor.
38
Expiration
of Subscription Rights
If
a U.S. holder allows Subscription Rights received in the Rights Offering to expire, the U.S. holder should not recognize any gain or
loss for U.S. federal income tax purposes, and the U.S. holder should re-allocate any portion of the tax basis in its existing common
shares, Series B Preferred Stock, Series C Preferred Stock or participating warrants previously allocated to the Subscription Rights
that have expired to such U.S. holder's existing common shares, Series B Preferred Stock, Series C Preferred Stock or participating
warrants, as applicable.
Sale
or Other Disposition, Exercise or Expiration of Warrants
Upon
the sale or other taxable disposition of a Warrant (other than by exercise) received upon exercise of a Subscription Right, a U.S. holder
will generally recognize capital gain or loss equal to the difference between the amount realized on the sale or other taxable disposition
and the U.S. holder's adjusted tax basis in the Warrant. A U.S. Holder's adjusted tax basis in a Warrant will generally equal
its initial tax basis (discussed above under "—Exercise of Subscription Rights"), as adjusted for any constructive
dividends on the Warrant described below. This capital gain or loss will be long-term capital gain or loss if the U.S. holder's
holding period in such Warrant is more than one year at the time of the sale or other taxable disposition. The deductibility of capital
losses is subject to certain limitations.
A
U.S. holder will not be required to recognize income, gain or loss upon exercise of a Warrant received upon exercise of a Subscription
Right. A U.S. holder's tax basis in a share of our common stock received upon exercise of the Warrants for cash will be equal to
the sum of (1) the U.S. holder's tax basis in the Warrants exchanged therefor and (2) the exercise price of such Warrants. A U.S.
holder's holding period in the shares of our common stock received upon exercise will commence on the day after such U.S. holder
exercises the Warrants.
In
certain circumstances, the Warrants will be exercisable on a cashless basis. The U.S. federal income tax treatment of an exercise of
a Warrant on a cashless basis is not clear, and could differ from the consequences described above. It is possible that a cashless exercise
could be a taxable event. U.S. holders are urged to consult their own tax advisors as to the consequences of an exercise of a Warrant
on a cashless basis, including with respect to whether the exercise is a taxable event, and their holding period and tax basis in the
common stock received.
If
a Warrant expires without being exercised, a U.S. holder will recognize a capital loss in an amount equal to such holder's adjusted
tax basis in the Warrant. Such loss will be long-term capital loss if, at the time of the expiration, the U.S. holder's holding
period in such Warrant is more than one year. The deductibility of capital losses is subject to certain limitations.
Constructive
Dividends on Warrants
As
described in the section entitled "Dividend Policy," we do not anticipate declaring or paying dividends to holders of our
common stock or our Preferred Stock in the foreseeable future. However, if at any time during the period in which a U.S. holder holds
Warrants received upon exercise of a Subscription Right, we were to pay a taxable dividend to our stockholders and, in accordance with
the anti-dilution provisions of the Warrants, the exercise price of the Warrants were decreased, that decrease would be deemed to be
the payment of a taxable dividend to a U.S. holder of the Warrants to the extent of our earnings and profits, notwithstanding the fact
that such holder will not receive a cash payment. If the exercise price is adjusted in certain other circumstances (or in certain circumstances,
there is a failure to make appropriate adjustments), or there is an adjustment to the number of common shares that will be issued on
exercise of the Warrants, such adjustments may also result in the deemed payment of a taxable dividend to a U.S. holder. U.S. holders
should consult their own tax advisors regarding the proper treatment of any adjustments to the exercise price of the Warrants. We are
currently required to report the amount of any deemed distributions to the IRS, as well as either on our website or to holders not exempt
from reporting.
39
Distributions
on Preferred Stock and Common Stock
As
described in the section entitled "Dividend Policy," we do not anticipate declaring or paying dividends to holders of our
Preferred Stock, Series B Preferred Stock, Series C Preferred Stock or common stock in the foreseeable future. However, if we do make
distributions of cash or property on our Preferred Stock, Series B Preferred Stock, Series C Preferred Stock or common stock, such distributions
will constitute dividends to the extent paid out of our current or accumulated earnings and profits, as determined for U.S. federal income
tax purposes. Dividends received by a corporate U.S. holder may be eligible for a dividends received deduction, subject to applicable
limitations. Dividends received by certain non-corporate U.S. holders, including individuals, are generally taxed at the lower applicable
capital gains rate provided certain holding period and other requirements are satisfied. Distributions in excess of our current and accumulated
earnings and profits will constitute a return of capital and first be applied against and reduce a U.S. holder's adjusted tax basis
in its Preferred Stock or common stock, as the case may be, but not below zero. Any excess will be treated as capital gain and will be
treated as described below in the section relating to the sale or disposition of our common stock.
Sale,
Exchange or Other Disposition of Preferred Stock and Common Stock
Upon
a sale, exchange, or other taxable disposition of our Preferred Stock (other than by conversion) or our common stock, a U.S. holder generally
will recognize capital gain or loss equal to the difference between the amount realized (not including any amount attributable to declared
and unpaid dividends, which will be taxable as described above to U.S. holders of record who have not previously included such dividends
in income) and the U.S. holder's adjusted tax basis in our Preferred Stock or our common stock. The U.S. holder's adjusted
tax basis in our Preferred Stock generally will equal its initial tax basis (discussed above under "
—
Exercise of Subscription
Rights"), as adjusted for applicable distributions (including constructive dividends described below). A U.S. holder's adjusted
tax basis in our common stock generally will equal its initial tax basis in our common stock (discussed below under "—Conversion
of the Preferred Stock into Our Common Stock"), as adjusted for applicable distributions (including constructive dividends described
below). Such capital gain or loss generally will be long-term capital gain or loss if the U.S. holder's holding period for our
Preferred Stock or our common stock exceeded one year at the time of disposition (see the discussion below under "—Conversion
of Our Preferred Stock into Our Common Stock" regarding a U.S. holder's holding period for our common stock). Long-term capital
gains recognized by certain non-corporate U.S. holders, including individuals, generally are subject to reduced rates of taxation. The
deductibility of capital losses is subject to limitations.
Conversion
of Our Preferred Stock into Our Common Stock
A
U.S. holder will not recognize any gain or loss in respect of the receipt of our common stock upon the conversion of our Preferred Stock
(except to the extent the U.S. holder receives a cash payment for any fractional share that would otherwise have been issuable upon conversion
of the Preferred Stock). The adjusted tax basis of our common stock that a U.S. holder receives on conversion will equal the adjusted
tax basis of the Preferred Stock converted (decreased by the adjusted tax basis allocable to any fractional share that would otherwise
have been issued upon conversion of the Preferred Stock), and the holding period of such common stock received on conversion will include
the period during which the U.S. holder held the Preferred Stock prior to conversion.
In
the event a U.S. holder's Preferred Stock is converted pursuant to an election by such U.S. holder in the case of certain acquisitions
or fundamental changes or pursuant to certain other transactions (including our consolidation or merger into another person), the tax
treatment of such a conversion will depend upon the facts underlying the particular transaction triggering such a conversion. In this
regard, it is possible that any related adjustments of the conversion rate would be treated as a constructive distribution to the U.S.
holder as described below under "
—
Constructive Dividends on Preferred Stock
.
" U.S. holders should consult
their own tax advisors to determine the specific tax treatment of a conversion under such circumstances.
Constructive
Dividends on Preferred Stock or Common Stock
The
conversion rate of our Preferred Stock is subject to adjustment under certain circumstances, as described below under "Description
of Securities—Preferred Stock—Preferred Stock
.
" Section 305(c) of the Code and U.S. Treasury Regulations thereunder
may treat a U.S. holder of our Preferred Stock as having received a constructive distribution includable in such U.S. holder's
income in the manner as described above under "
—
Distributions on Preferred Stock and Common Stock," if and to
the extent that certain adjustments in the conversion rate (or failures to make such an adjustment) increase the proportionate interest
of such U.S. holder in our earnings and profits. In certain other circumstances, an adjustment to the conversion rate of our Preferred
Stock or a failure to make such an adjustment could potentially give rise to constructive distributions to U.S. holders of our common
stock. Thus, under certain circumstances, U.S. holders may recognize income in the event of a constructive distribution even though they
may not receive any cash or property. We are currently required to report the amount of any deemed distributions to the IRS, as well
as either on our website or to holders not exempt from reporting.
40
Information
Reporting and Backup Withholding
A
U.S. holder may be subject to information reporting and backup withholding when such holder receives dividend payments (including constructive
dividends) or receives proceeds from the sale or other taxable disposition of the Warrants, shares of our Preferred Stock acquired through
the exercise of Subscription Rights or shares of our common stock acquired through conversion of our Preferred Stock or exercise of the
Warrants. Certain U.S. holders are exempt from backup withholding, including certain corporations and certain tax-exempt organizations.
A U.S. holder will be subject to backup withholding if such holder is not otherwise exempt (or fails to properly establish an exemption)
and such holder:
●
fails
    to furnish the holder's taxpayer identification number, which for an individual is ordinarily his or her social security number;
●
furnishes
    an incorrect taxpayer identification number;
●
is
    notified by the IRS that the holder previously failed to properly report payments of interest or dividends; or
●
fails
    to certify under penalties of perjury that the holder has furnished a correct taxpayer identification number and that the IRS has
    not notified the holder that the holder is subject to backup withholding.
Backup
withholding is not an additional tax. Any amounts withheld under the backup withholding rules may be allowed as a refund or a credit
against a U.S. holder's U.S. federal income tax liability, provided the required information is timely furnished to the IRS. U.S.
holders should consult their own tax advisors regarding their qualification for an exemption from backup withholding and the procedures
for obtaining such an exemption.
Tax
Considerations Applicable to Non-U.S. Holders
For
purposes of this discussion, a "non-U.S. holder" is a beneficial owner of shares of our common stock, Series B Preferred
Stock, Series C Preferred Stock, Participating Warrants, our Subscription Rights, shares of our Preferred Stock and Warrants acquired
upon exercise of Subscription Rights or shares of our common stock acquired upon conversion of our Preferred Stock or exercise of Warrants,
as the case may be, that is neither a U.S. holder nor an entity treated as a partnership for U.S. federal income tax purposes.
Receipt,
Exercise and Expiration of the Subscription Rights
The
discussion assumes that the receipt of Subscription Rights will be treated as a nontaxable distribution. See "
—
Tax
Considerations Applicable to U.S. Holders—Receipt of Subscription Rights" above. In such case, non-U.S. holders will not
be subject to U.S. federal income tax (or any withholding thereof) on the receipt, exercise or expiration of the Subscription Rights.
Exercise
of Warrants
A
non-U.S. holder will not be subject to U.S. federal income tax on the cash exercise of Warrants into shares of our common stock. As discussed
above in "—Tax Considerations Applicable to U.S. Holders—Sale or Other Disposition, Exercise or Expiration of Warrants,"
the U.S. federal income tax treatment of an exercise of a Warrant on a cashless basis is not clear. Non-U.S. holders are urged to consult
their own tax advisors as to the consequences of an exercise of a Warrant on a cashless basis, including with respect to whether the
exercise is a taxable event, and their holding period and tax basis in the common stock received.
41
Constructive
Dividends on Warrants
As
described in the section entitled "Dividend Policy," we do not anticipate declaring or paying dividends to holders of our
Preferred Stock or common stock in the foreseeable future. However, if at any time during the period in which a non-U.S. holder holds
Warrants we were to pay a taxable dividend to our stockholders and, in accordance with the anti-dilution provisions of the Warrants,
the exercise price of the Warrants were decreased, that decrease would be deemed to be the payment of a taxable dividend to a non-U.S.
holder to the extent of our earnings and profits, notwithstanding the fact that such holder will not receive a cash payment. If the exercise
price is adjusted in certain other circumstances (or in certain circumstances, there is a failure to make appropriate adjustments), or
there is an adjustment to the number of common shares that will be issued on exercise of the Warrants, such adjustments may also result
in the deemed payment of a taxable dividend to a non-U.S. holder. Any resulting withholding tax attributable to deemed dividends may
be collected from other amounts payable or distributable to the non-U.S. holder. Non-U.S. holders should consult their own tax advisors
regarding the proper treatment of any adjustments to the Warrants.
Distributions
on Preferred Stock and Common Stock
As
described in the section entitled "Dividend Policy," we do not anticipate declaring or paying dividends to holders of our
Preferred Stock or common stock in the foreseeable future. However, if we do make distributions of cash or property on our Preferred
Stock or common stock, such distributions will constitute dividends for U.S. federal income tax purposes to the extent paid from our
current or accumulated earnings and profits, as determined under U.S. federal income tax principles. Amounts not treated as dividends
for U.S. federal income tax purposes will constitute a return of capital and first be applied against and reduce a non-U.S. holder's
adjusted tax basis in its Preferred Stock or common stock, as the case may be, but not below zero. Any excess will be treated as capital
gain and will be treated as described below in the section relating to the sale or disposition of our Preferred Stock, Warrants, or common
stock. Because we may not know the extent to which a distribution is a dividend for U.S. federal income tax purposes at the time it is
made, for purposes of the withholding rules discussed below we or the applicable withholding agent may treat the entire distribution
as a dividend.
Subject
to the discussion below on backup withholding and foreign accounts, dividends paid to a non-U.S. holder of our Preferred Stock or common
stock that are not effectively connected with the non-U.S. holder's conduct of a trade or business within the United States will
be subject to U.S. federal withholding tax at a rate of 30% of the gross amount of the dividends (or such lower rate specified by an
applicable income tax treaty).
Non-U.S.
holders will be entitled to a reduction in or an exemption from withholding on dividends as a result of either (1) an applicable income
tax treaty or (2) the non-U.S. holder holding our Preferred Stock or common stock in connection with the conduct of a trade or business
within the United States and such dividends being effectively connected with that trade or business. To claim such a reduction in or
exemption from withholding, the non-U.S. holder must provide the applicable withholding agent with a properly executed (a) IRS Form W-8BEN
or W-8BEN-E (or other applicable documentation) claiming an exemption from or reduction of the withholding tax pursuant to the benefits
of an income tax treaty between the United States and the country in which the non-U.S. holder resides or is established, or (b) IRS
Form W-8ECI stating that the dividends are not subject to withholding tax because they are effectively connected with the conduct by
the non-U.S. holder of a trade or business within the United States, as may be applicable. These certifications must be provided to the
applicable withholding agent prior to the payment of dividends and must be updated periodically. Non-U.S. holders that do not timely
provide the applicable withholding agent with the required certification, but that qualify for a reduced rate under an applicable income
tax treaty, may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for refund with the IRS.
If
dividends paid to a non-U.S. holder are effectively connected with the non-U.S. holder's conduct of a trade or business within
the United States (and, if required by an applicable income tax treaty, the non-U.S. holder maintains a permanent establishment in the
United States to which such dividends are attributable), then, although exempt from U.S. federal withholding tax (provided the non-U.S.
holder provides appropriate certification, as described above, and subject to the discussion below on backup withholding and foreign
accounts), the non-U.S. holder will be subject to U.S. federal income tax on such dividends on a net income basis at the regular graduated
U.S. federal income tax rates. In addition, a non-U.S. holder that is a corporation may be subject to a branch profits tax at a rate
of 30% (or such lower rate specified by an applicable income tax treaty) on its effectively connected earnings and profits for the taxable
year that are attributable to such dividends, as adjusted for certain items. Non-U.S. holders should consult their own tax advisors regarding
their entitlement to benefits under any applicable income tax treaty.
42
Sale
or Other Disposition of Preferred Stock, Warrants or Common Stock
Subject
to the discussions below on backup withholding and foreign accounts, a non-U.S. holder will not be subject to U.S. federal income tax
on any gain realized upon the sale or other taxable disposition of our Preferred Stock, Warrants or common stock unless:
●
the
    gain is effectively connected with the non-U.S. holder's conduct of a trade or business within the United States (and, if required
    by an applicable income tax treaty, the non-U.S. holder maintains a permanent establishment in the United States to which such gain
    is attributable);
●
the
    non-U.S. holder is a nonresident alien individual present in the United States for 183 days or more during the taxable year of the
    disposition and certain other requirements are met; or
●
our
    Preferred Stock, Warrants or common stock constitutes a U.S. real property interest, or USRPI, by reason of our status as a U.S.
    real property holding corporation, or USRPHC, for U.S. federal income tax purposes.
Gain
described in the first bullet point above generally will be subject to U.S. federal income tax on a net income basis at the regular graduated
rates. A Non-U.S. holder that is a corporation also may be subject to a branch profits tax at a rate of 30% (or such lower rate specified
by an applicable income tax treaty) on such effectively connected gain, as adjusted for certain items.
Gain
described in the second bullet point above will be subject to U.S. federal income tax at a rate of 30% (or such lower rate specified
by an applicable income tax treaty) on any gain derived from the disposition, which may be offset by U.S. source capital losses of the
non-U.S. holder (even though the individual is not considered a resident of the United States), provided the non-U.S. holder has timely
filed U.S. federal income tax returns with respect to such losses.
With
respect to the third bullet point above, we believe we are not currently and do not anticipate becoming a USRPHC. Because the determination
of whether we are a USRPHC depends on the fair market value of our USRPIs relative to the fair market value of our other business assets
and our non-U.S. real property interests, however, there can be no assurance we are not a USRPHC or will not become one in the future.
Non-U.S.
holders should consult their own tax advisors regarding potentially applicable income tax treaties that may provide for different rules.
Conversion
of Our Preferred Stock into Our Common Stock
A
non-U.S. holder will not recognize any gain or loss in respect of the receipt of our common stock upon the conversion of our Preferred
Stock (except to the extent the non-U.S. holder receives a cash payment for any fractional share that would otherwise have been issuable
upon conversion of the Preferred Stock).
Constructive
Dividends on Preferred Stock
As
described above under "—Tax Considerations Applicable to U.S. Holders—Constructive Dividends on Preferred Stock or
Common Stock," in certain circumstances, a non-U.S. holder will be deemed to receive a constructive distribution from us. Adjustments
in the conversion rate (or failures to adjust the conversion rate) that increase the proportionate interest of a non-U.S. holder in our
earnings and profits could result in deemed distributions to the non-U.S. holder that are treated as dividends for U.S. federal income
tax purposes. Any constructive dividend deemed paid to a non-U.S. holder will be subject to U.S. federal income tax or withholding tax
in the manner described above under "—Tax Considerations Applicable to Non-U.S. Holders—Distributions on Preferred
Stock and Common Stock." It is possible that U.S. federal tax on the constructive dividend would be withheld, if applicable, from
subsequent payments on the Preferred Stock or our common stock.
43
Information
Reporting and Backup Withholding
Subject
to the discussion below on foreign accounts, a non-U.S. holder will not be subject to backup withholding with respect to distributions
on our Preferred Stock, Warrants or common stock we make to the non-U.S. holder, provided the applicable withholding agent does not have
actual knowledge or reason to know such holder is a United States person and the holder timely certifies its non-U.S. status, such as
by providing a valid IRS Form W-8BEN, W- 8BEN-E or W-8ECI, or other applicable certification. However, information returns generally
will be filed with the IRS in connection with any distributions (including deemed distributions) made on our Preferred Stock, Warrants
and common stock to the non-U.S. holder, regardless of whether any tax was actually withheld. Copies of these information returns may
also be made available under the provisions of a specific treaty or agreement to the tax authorities of the country in which the non-U.S.
holder resides or is established.
Information
reporting and backup withholding may apply to the proceeds of a sale or other taxable disposition of our Preferred Stock, Warrants or
common stock within the United States, and information reporting may (although backup withholding generally will not) apply to the proceeds
of a sale or other taxable disposition of our Preferred Stock, Warrants or common stock outside the United States conducted through certain
U.S.-related financial intermediaries, in each case, unless the beneficial owner timely certifies under penalty of perjury that it is
a non-U.S. holder on IRS Form W-8BEN or W-8BEN-E, or other applicable form (and the payor does not have actual knowledge or reason to
know that the beneficial owner is a U.S. person) or such owner otherwise timely establishes an exemption. Proceeds of a disposition of
our Preferred Stock, Warrants or common stock conducted through a non-U.S. office of a non-U.S. broker generally will not be subject
to backup withholding or information reporting.
Backup
withholding is not an additional tax. Any amounts withheld under the backup withholding rules may be allowed as a refund or a credit
against a non-U.S. holder's U.S. federal income tax liability, provided the required information is timely furnished to the IRS.
Additional
Withholding Tax on Payments Made to Foreign Accounts
Withholding
taxes may be imposed under the Foreign Account Tax Compliance Act, or FATCA, on certain types of payments made to non-U.S. financial
institutions and certain other non-U.S. entities. Specifically, a 30% withholding tax may be imposed on dividends (including deemed dividends)
paid on our Preferred Stock, Warrants or common stock, or gross proceeds from the sale or other disposition of our Preferred Stock, Warrants
or common stock paid to a "foreign financial institution" or a "non-financial foreign entity" (each as defined
in the Code), unless (1) the foreign financial institution undertakes certain diligence and reporting obligations, (2) the non-financial
foreign entity either certifies it does not have any "substantial United States owners" (as defined in the Code) or furnishes
identifying information regarding each substantial United States owner, or (3) the foreign financial institution or non-financial foreign
entity otherwise qualifies for an exemption from these rules. If the payee is a foreign financial institution and is subject to the diligence
and reporting requirements in (1) above, it must enter into an agreement with the U.S. Department of the Treasury requiring, among other
things, that it undertake to identify accounts held by certain "specified United States persons" or "United States-owned
foreign entities" (each as defined in the Code), annually report certain information about such accounts, and withhold 30% on certain
payments to non-compliant foreign financial institutions and certain other account holders. Non-U.S. holders typically will be required
to furnish certifications (generally on the applicable IRS Form W-8) or other documentation to provide the information required by FATCA
or to establish compliance with or an exemption from withholding under FATCA. FATCA withholding may apply where payments are made through
a non-U.S. intermediary that is not FATCA compliant, even where the non-U.S. holder satisfies the holder's own FATCA obligations.
Foreign financial institutions located in jurisdictions that have an intergovernmental agreement with the United States governing FATCA
may be subject to different rules.
Withholding
under FATCA also potentially applies to payments of gross proceeds from the sale or other disposition of our common stock. Proposed regulations,
however, would eliminate withholding under FATCA on such payments, and the U.S. Treasury Department has indicated that taxpayers may
rely on this aspect of the proposed regulations until final regulations are issued. Because we may not know the extent to which a distribution
is a dividend for U.S. federal income tax purposes at the time it is made, for purposes of these withholding rules we or the applicable
withholding agent may treat the entire distribution as a dividend. Prospective investors should consult their own tax advisors regarding
the potential application of these withholding provisions.
44
DESCRIPTION
OF SECURITIES
As
of the date of this prospectus, our Restated Certificate of Incorporation authorizes us to issue 250,000,000 shares of common stock,
par value $0.01 per share, and 130,000,000 shares of preferred stock, par value $0.01 per share. The following is a summary of the rights
of our common and preferred stock and some of the provisions of our Restated Certificate of Incorporation and Amended and Restated Bylaws,
our outstanding warrants, our registration rights agreements and the Delaware General Corporation Law. Because it is only a summary,
it does not contain all the information that may be important to you and is subject to and qualified in its entirety by our Restated
Certificate of Incorporation and our Restated Bylaws, a copy of each of which has been incorporated as an exhibit to the registration
statement of which this prospectus forms a part.
Our
Restated Certificate of Incorporation and our Amended and Restated Bylaws contain certain provisions that are intended to enhance the
likelihood of continuity and stability in the composition of the board of directors, which may have the effect of delaying, deferring
or preventing a future takeover or change in control of the Company unless such takeover or change in control is approved by our board
of directors.
Common
Stock
As
of June 30, 2022, there were 24,719,574 shares of common stock outstanding. In addition, as of June 30, 2022 there were: (i) 1,291,207
shares of common stock subject to outstanding options and restricted stock units; (ii) 626,799 shares of common stock reserved for future
issuance under our 2020 Equity Incentive Plan; (iii) 1,117,575 shares of common stock reserved for future issuance under outstanding
common stock warrants; (iv) 19,306 shares of common stock reserved for issuance on conversion of 26 shares of the Series B Preferred
Stock; and (v) 34,428 shares of common stock reserved for issuance on conversion of 51 shares of the Series C Preferred Stock. Each outstanding
share of common stock entitles the holder thereof to one vote per share on all matters. Our Amended and Restated Bylaws provide that
any vacancy occurring in the board of directors may be filled by the affirmative vote of a majority of the remaining directors. Stockholders
do not have preemptive rights to purchase shares in any future issuance of our common stock. In the event of our liquidation, dissolution
or winding up, holders of our common stock are entitled to receive, ratably, the net assets available to stockholders after payment of
all creditors.
Holders
of our common stock are entitled to one vote for each share held of record on all matters submitted to a vote of the stockholders, and
do not have cumulative voting rights. Accordingly, the holders of a majority of the shares of our common stock entitled to vote can elect
all of the directors standing for election. Subject to preferences that may be applicable to any outstanding shares of preferred stock,
holders of our common stock are entitled to receive ratably such dividends, if any, as may be declared from time to time by our board
of directors out of funds legally available for dividend payments. All outstanding shares of our common stock are fully paid and nonassessable,
and any shares of our common stock to be sold pursuant to this prospectus will be fully paid and nonassessable. The holders of common
stock have no preferences or rights of conversion, exchange, pre-emption or other subscription rights. There are no redemption or sinking
fund provisions applicable to our common stock. In the event of any liquidation, dissolution or winding-up of our affairs, holders of
our common stock will be entitled to share ratably in our assets that are remaining after payment or provision for payment of all of
our debts and obligations and after liquidation payments to holders of outstanding shares of preferred stock, if any.
The
transfer agent and registrar for our common stock is American Stock Transfer and Trust Company. The transfer agent and the registrar's
address is 59 Maiden Lane, New York, New York 10038. Their telephone number is 1-800-937-5449. Our common stock is listed on The NASDAQ
Capital Market under the symbol "SINT".
Preferred
Stock
Our
Board of directors has the authority under our Restated Certificate of Incorporation, without further action by our stockholders, to
issue up to 130,000,000 shares of preferred stock in one or more series, to establish from time to time the number of shares to be included
in each such series, to fix the rights, preferences, privileges and restrictions of the shares of each wholly unissued series, including
dividend rights, conversion rights, voting rights, terms of redemption, liquidation preference and sinking fund terms, and to increase
or decrease the number of shares of any such series (but not below the number of shares of such series then outstanding). Our board of
directors may authorize the issuance of preferred stock with voting or conversion rights that could have the effect of restricting dividends
on our common stock, diluting the voting power of our common stock, impairing the liquidation rights of our common stock or otherwise
adversely affecting the rights of holders of our common stock. The issuance of preferred stock, while providing flexibility in connection
with possible acquisitions and other corporate purposes, could, among other things, have the effect of delaying, deferring or preventing
a change of control and may adversely affect the market price of our common stock.
45
Series
B Preferred Stock
.
Our
board of directors designated 15,000 shares of our preferred stock as Series B Preferred Stock. As of June 30, 2022, there were 26 shares
of Series B Preferred stock outstanding. The Series B Preferred Stock ranks senior to our common stock and other classes of capital stock
with respect to redemption, unless the holders of a majority of the outstanding shares of Series B Preferred Stock consent to the creation
of parity stock or senior preferred stock.
Conversion
Each
share of Series B Preferred Stock is convertible into shares of our common stock at any time at the holder's option at the Conversion
Price described below. We may not effect any conversion of Series B Preferred Stock, with certain exceptions, to the extent that, after
giving effect to an attempted conversion, the holder of Series B Preferred Stock (together with such holder's affiliates, and any
persons acting as a group together with such holder or any of such holder's affiliates) would beneficially own a number of shares
of common stock in excess of 4.99% (or, at the election of the holder, 9.99%) of the shares of our common stock then outstanding after
giving effect to such conversion, referred to as the Preferred Stock Beneficial Ownership Limitation; provided, however, that upon notice
to us, the holder may increase or decrease the Preferred Stock Beneficial Ownership Limitation, provided that in no event may the Preferred
Stock Beneficial Ownership Limitation exceed 9.99% and any increase in the Preferred Stock Beneficial Ownership Limitation will not be
effective until 61 days following notice of such increase from the holder to us.
Subject
to certain ownership limitations as described below and certain equity conditions being met, if during any 30 consecutive trading days,
the volume weighted average price of our common stock exceeds $130.61 and the daily dollar trading volume during such period exceeds
$500,000 per trading day, we have the right to force the conversion of the Series B Preferred Stock into common stock.
Conversion
Price.
The
Series B Preferred Stock is convertible into shares of common stock by dividing the stated value of the Series B Preferred Stock ($1,100)
by $1.4814 (the "Conversion Price"). The Conversion Price is subject to adjustment for stock splits, stock dividends, and
distributions of common stock or securities convertible, exercisable or exchangeable for common stock, subdivisions, combinations and
reclassifications.
Subject
to certain exclusions contained in the Certificate of Designation, if we in any manner grant or sell any rights, warrants or options
and the lowest price per share for which one share of common stock is at any time issuable upon the exercise of any such option or upon
conversion, exercise or exchange of any Common Stock Equivalents (as defined in the Certificate of Designation) issuable upon exercise
of any such option, exercise or exchange of any Common Stock Equivalent issuable upon the exercise of such option or otherwise pursuant
to the terms thereof is less than the Conversion Price, then such share of common stock will be deemed to be outstanding and to have
been issued and sold by us at the time of the granting or sale of such option for such price per share. For purposes of this paragraph
only, the "lowest price per share for which one share of common stock is issuable upon the exercise of any such options or upon
conversion, exercise or exchange of any Common Stock Equivalent issuable upon exercise of any such option or otherwise pursuant to the
terms thereof" will be equal to (1) the lower of  (x) the sum of the lowest amounts of consideration (if any) received or
receivable by us with respect to any one share of common stock upon the granting or sale of such option, upon exercise of such option
and upon conversion, exercise or exchange of any Common Stock Equivalents issuable upon exercise of such option or otherwise pursuant
to the terms thereof and (y) the lowest exercise price set forth in such option for which one share of common stock is issuable upon
the exercise of any such options or upon conversion, exercise or exchange of any Common Stock Equivalents issuable upon exercise of any
such option or otherwise pursuant to the terms thereof. Except as contemplated by the terms of the Certificate of Designation, no further
adjustment of the Conversion Price will be made upon the actual issuance of such shares of common stock or of such convertible securities
upon the exercise of such options or otherwise pursuant to the terms of or upon the actual issuance of such Common Stock Equivalents.
46
Subject
to certain exclusions contained in the Certificate of Designation, if we in any manner issue or sell any Common Stock Equivalents and
the lowest price per share for which one share of common stock is at any time issuable upon the conversion, exercise or exchange thereof
or otherwise pursuant to the terms thereof is less than the Conversion Price, then such share of common stock will be deemed to be outstanding
and to have been issued and sold by us at the time of the issuance or sale of such convertible securities for such price per share. For
purposes of this paragraph only, the "lowest price per share for which one share of common stock is issuable upon the conversion,
exercise or exchange thereof or otherwise pursuant to the terms thereof" will be equal to (1) the lower of  (x) the sum
of the lowest amounts of consideration (if any) received or receivable by us with respect to one share of common stock upon the issuance
or sale of the Common Stock Equivalent and upon conversion, exercise or exchange of such convertible security or otherwise pursuant to
the terms thereof and (y) the lowest conversion price set forth in such convertible security for which one share of common stock is issuable
upon conversion, exercise or exchange thereof or otherwise pursuant to the terms thereof minus (2) the sum of all amounts paid or payable
to the holder of such Common Stock Equivalent (or any other person) upon the issuance or sale of such Common Stock Equivalent plus the
value of any other consideration received or receivable by, or benefit conferred on, the holder of such Common Stock Equivalent (or any
other person). Except as contemplated by the terms of the Certificate of Designation, no further adjustment of the Conversion Price will
be made upon the actual issuance of such shares of common stock upon conversion, exercise or exchange of such Common Stock Equivalents
or otherwise pursuant to the terms thereof, and if any such issuance or sale of such Common Stock Equivalents is made upon exercise of
any options for which adjustment of the Conversion Price has been or is to be made, except as contemplated by the terms of the Certificate
of Designation, no further adjustment of the Conversion Price will be made by reason of such issuance or sale.
If
the purchase or exercise price provided for in any options, the additional consideration, if any, payable upon the issue, conversion,
exercise or exchange of any convertible securities, or the rate at which any convertible securities are convertible into or exercisable
or exchangeable for shares of common stock increases or decreases at any time (other than proportional changes in conversion or exercise
prices, as applicable, in connection with stock dividends, splits or combination of outstanding common stock) the Conversion Price in
effect at the time of such increase or decrease will be adjusted to the Conversion Price which would have been in effect at such time
had such options or convertible securities provided for such increased or decreased purchase price, additional consideration or increased
or decreased conversion rate, as the case may be, at the time initially granted, issued or sold. If the terms of any option or convertible
security that was outstanding as of the date of issuance of the Preferred Stock and related Warrants are increased or decreased in the
manner described in the immediately preceding sentence, then such option or convertible security and the shares of common stock deemed
issuable upon exercise, conversion or exchange thereof will be deemed to have been issued as of the date of such increase or decrease.
No adjustment will be made if such adjustment would result in an increase of the Conversion Price then in effect.
If
any option and/or convertible security and/or Adjustment Right is issued in connection with the issuance or sale or deemed issuance or
sale of any other securities of the Company (as determined by the holder of Preferred Stock, the "Primary Security", and
such option and/or convertible security and/or Adjustment Right (as defined below), the "Secondary Securities" and together
with the Primary Security, each a "unit"), together comprising one integrated transaction, the aggregate consideration per
share of common stock with respect to such Primary Security will be deemed to be the lower of  (x) the purchase price of such
unit, (y) if such Primary Security is an option and/or convertible security, the lowest price per share for which one share of common
stock is at any time issuable upon the exercise or conversion of the Primary Security in accordance with the paragraphs above and (z)
the lowest volume-weighted average price of the common stock on any trading day during the four trading day period immediately following
the public announcement of such dilutive issuance. If any shares of common stock, options or convertible securities are issued or sold
or deemed to have been issued or sold for cash, the consideration received therefor will be deemed to be the net amount of consideration
received by us therefor. If any shares of common stock, options or convertible securities are issued or sold for a consideration other
than cash, the amount of such consideration received by us will be the fair value of such consideration, except where such consideration
consists of publicly traded securities, in which case the amount of consideration received by us for such securities will be the arithmetic
average of the volume-weighted average prices of such security for each of the five (5) trading days immediately preceding the date of
receipt. If any shares of common stock, options or convertible securities are issued to the owners of the non-surviving entity in connection
with any merger in which we are the surviving entity, the amount of consideration therefor will be deemed to be the fair value of such
portion of the net assets and business of the non-surviving entity as is attributable to such shares of common stock, options or convertible
securities (as the case may be). The fair value of any consideration other than cash or publicly traded securities will be determined
jointly by us and the holder. If such parties are unable to reach agreement within ten (10) days after the occurrence of an event requiring
valuation (the "Valuation Event"), the fair value of such consideration will be determined within five trading days after
the tenth day following such Valuation Event by an independent, reputable appraiser jointly selected by us and the holder. "Adjustment
Right" means any right granted with respect to any securities issued in connection with, or with respect to, any issuance or sale
(or deemed issuance or sale in accordance with the paragraph above) of shares of common stock that could result in a decrease in the
net consideration received by us in connection with, or with respect to, such securities (including, without limitation, any cash settlement
rights, cash adjustment or other similar rights).
47
In
addition, holders of Preferred Stock may be eligible to elect an alternative price in the event we issue certain variable price securities.
Liquidation;
Dividends; Repurchases.
In
the event of a liquidation, the holders of Series B Preferred Stock are entitled to participate on an as-converted-to-common stock basis
with holders of the common stock in any distribution of assets of the Company to the holders of common stock.
Redemption
Right.
We
hold an option to redeem some or all of the Series B Preferred Stock at any time after the six-month anniversary of its issuance date
at a 25% premium to the stated value of the Series B Preferred Stock subject to redemption, upon 30 days prior written notice to the
holder of the Series B Preferred Stock. The Series B Preferred Stock would be redeemed by us for cash.
Fundamental
Transactions.
In
the event of any fundamental transaction, generally including any merger with or into another entity, sale of all or substantially all
of our assets, tender offer or exchange offer, or reclassification of our common stock, then upon any subsequent conversion of the Series
B Preferred Stock, the holder will have the right to receive as alternative consideration, for each share of our common stock that would
have been issuable upon such conversion immediately prior to the occurrence of such fundamental transaction, the number of shares of
common stock of the successor or acquiring corporation or of our company, if it is the surviving corporation, and any additional consideration
receivable upon or as a result of such transaction by a holder of the number of shares of our common stock for which the Series B Preferred
Stock is convertible immediately prior to such event.
Voting
Rights.
With
certain exceptions, the holders of shares of Series B Preferred Stock have no voting rights. However, as long as any shares of Series
B Preferred Stock remain outstanding, we may not, without the affirmative vote of holders of a majority of the then-outstanding Series
B Preferred Stock, (a) alter or change adversely the powers, preferences or rights given to the Series B Preferred Stock or alter or
amend the Certificate of Designation, (b) increase the number of authorized shares of Series B Preferred Stock, (c) amend our Certificate
of Incorporation or other charter documents in any manner that adversely affects any rights of holders of Series B Preferred Stock disproportionately
to the rights of holders of our other capital stock, or (d) enter into any agreement with respect to any of the foregoing.
Jurisdiction
and Waiver of Trial by Jury
Other
than with respect to suits, actions or proceedings arising under the federal securities laws, the Certificate of Designation provides
for investors to consent to exclusive jurisdiction to courts located in New York, New York and provides for a waiver of the right to
a trial by jury. It also provides that disputes are governed by Delaware law.
48
Series
C Preferred Stock.
Our
board of directors designated 9,440 shares of our preferred stock as Series C Preferred Stock. As of June 30, 2022, there were 51 shares
of Series C Preferred stock outstanding.
Conversion.
Each share of Series C Preferred Stock is convertible at our option at any time or at the option of the holder at any time, into
the number of shares of our common stock determined by dividing the $1,000 stated value per share of the Preferred Stock by a conversion
price of $1.4814 per share. In addition, the conversion price per share is subject to adjustment for stock dividends, distributions,
subdivisions, combinations or reclassifications. Subject to limited exceptions, a holder of the Series C Preferred Stock will not have
the right to convert any portion of the Series C Preferred Stock to the extent that, after giving effect to the conversion, the holder,
together with its affiliates, would beneficially own in excess of 4.99% of the number of shares of our common stock outstanding immediately
after giving effect to its conversion. A holder of the Series C Preferred Stock, upon notice to the Company, may increase or decrease
the beneficial ownership limitation provisions of such holder's Series C Preferred Stock, provided that in no event shall the limitation
exceed 9.99% of the number of shares of our common stock outstanding immediately after giving effect to its conversion. In the event
that a conversion is effected at our option, we will exercise such option to convert shares of Series C Preferred Stock on a pro rata
basis among all of the holders based on such holders' shares of Series C Preferred Stock.
Fundamental
Transactions.
In the event we effect certain mergers, consolidations, sales of substantially all of our assets, tender or exchange
offers, reclassifications or share exchanges in which our common stock is effectively converted into or exchanged for other securities,
cash or property, we consummate a business combination in which another person acquires 50% of the outstanding shares of our common stock,
or any person or group becomes the beneficial owner of 50% of the aggregate ordinary voting power represented by our issued and outstanding
common stock, then, upon any subsequent conversion of the Series C Preferred Stock, the holders of the Series C Preferred Stock will
have the right to receive any shares of the acquiring corporation or other consideration it would have been entitled to receive if it
had been a holder of the number of shares of common stock then issuable upon conversion in full of the Series C Preferred Stock.
Dividends.
Holders of Series C Preferred Stock shall be entitled to receive dividends (on an as-if-converted-to-common-stock basis) in the same
form as dividends actually paid on shares of the common stock when, as and if such dividends are paid on shares of common stock.
Voting
Rights.
Except as otherwise provided in the certificate of designation or as otherwise required by law, the Series C Preferred Stock
has no voting rights.
Liquidation
Preference
.
Upon our liquidation, dissolution or winding-up, whether voluntary or involuntary, holders of Series C Preferred
Stock will be entitled to receive out of our assets, whether capital or surplus, the same amount that a holder of common stock would
receive if the Series C Preferred Stock were fully converted (disregarding for such purpose any conversion limitations under the certificate
of designation) to common stock, which amounts shall be paid pari passu with all holders of common stock.
Redemption
Rights.
We are not obligated to redeem or repurchase any shares of Series C Preferred Stock. Shares of Series C Preferred Stock are
not otherwise entitled to any redemption rights, or mandatory sinking fund or analogous provisions.
Future
Preferred Stock
.
Our
board of directors will fix the rights, preferences, privileges, qualifications and restrictions of the preferred stock of each series
that we sell under this prospectus and applicable prospectus supplements in the certificate of designation relating to that series. We
will file as an exhibit to the registration statement of which this prospectus is a part, or incorporate by reference into the registration
statement of which this prospectus is a part the form of any certificate of designation that describes the terms of the series of preferred
stock we are offering before the issuance of the related series of preferred stock. This description will include:
●
the
    title and stated value;
●
the
    number of shares we are offering;
49
●
the
    liquidation preference per share;
●
the
    purchase price per share;
●
the
    dividend rate per share, dividend period and payment dates and method of calculation for dividends;
●
whether
    dividends will be cumulative or non-cumulative and, if cumulative, the date from which dividends will accumulate;
●
our
    right, if any, to defer payment of dividends and the maximum length of any such deferral period;
●
the
    procedures for any auction and remarketing, if any;
●
the
    provisions for a sinking fund, if any;
●
the
    provisions for redemption or repurchase, if applicable, and any restrictions on our ability to exercise those redemption and repurchase
    rights;
●
any
    listing of the preferred stock on any securities exchange or market;
●
whether
    the preferred stock will be convertible into our common stock or other securities of ours, including warrants, and, if applicable,
    the conversion period, the conversion price, or how it will be calculated, and under what circumstances it may be adjusted;
●
voting
    rights, if any, of the preferred stock;
●
preemption
    rights, if any;
●
restrictions
    on transfer, sale or other assignment, if any;
●
a
    discussion of any material or special United States federal income tax considerations applicable to the preferred stock;
●
the
    relative ranking and preferences of the preferred stock as to dividend rights and rights if we liquidate, dissolve or wind up our
    affairs;
●
any
    limitations on issuances of any class or series of preferred stock ranking senior to or on a parity with the series of preferred
    stock being issued as to dividend rights and rights if we liquidate, dissolve or wind up our affairs; and
●
any
    other specific terms, rights, preferences, privileges, qualifications or restrictions of the preferred stock.
When
we issue shares of preferred stock under this prospectus, the shares will be fully paid and nonassessable and will not have, or be subject
to, any preemptive or similar rights.
The
General Corporation Law of the State of Delaware, the state of our incorporation, provides that the holders of preferred stock will have
the right to vote separately as a class on any proposal involving fundamental changes in the rights of holders of that preferred stock.
This right is in addition to any voting rights that may be provided for in the applicable certificate of designation.
50
Description
of Other Outstanding Securities of the Company
Warrants
As
of June 30, 2022, there were 1,117,575 common stock purchase warrants outstanding, which expire between July 28, 2022 and February
2025. Each of these warrants entitles the holder to purchase one share of common stock at prices ranging between $278,370 and $1.4814,
as converted, per share, with a weighted average exercise price of $6.43 per share. Certain of these warrants has a net exercise provision
under which its holder may, in lieu of payment of the exercise price in cash, surrender the warrant and receive a net amount of shares
based on the fair market value of our common stock at the time of exercise of the warrant after deduction of the aggregate exercise price.
Each of these warrants also contains provisions for the adjustment of the exercise price and the aggregate number of shares issuable
upon the exercise of the warrant in the event of dividends, share splits, reorganizations and reclassifications and consolidations. Certain
of these warrants contain a provision requiring a reduction to the exercise price in the event we issue common stock, or securities convertible
into or exercisable for common stock, at a price per share lower than the warrant exercise price.
The
holders of certain of these warrants have registration rights that are outlined below under the heading "Registration Rights."
February
2020 Rights Offering Warrants
On
February 6, 2020, we issued 6,372,000 common stock warrants (the "February 2020 Warrants") in a rights offering to our stockholders.
The material terms and provisions of the February 2020 Warrants are summarized below. This summary of the February 2020 Warrants is not
complete. For the complete terms of the February 2020 Warrants, you should refer to the form of February 2020 Warrant filed as an exhibit
to the registration statement of which this prospectus forms a part.
Pursuant
to a warrant agency agreement between us and American Stock Transfer & Trust Company, LLC, as warrant agent, the February 2020 Warrants
were issued in book-entry form and are represented only by one or more global warrants deposited with the warrant agent, as custodian
on behalf of The Depository Trust Company, or DTC, and registered in the name of Cede & Co., a nominee of DTC, or as otherwise directed
by DTC.
Exercisability.
Each February 2020 Warrant became exercisable at the time of issuance and will expire five years from their issuance date. The February
2020 Warrants are exercisable, at the option of each holder, in whole or in part by delivering to us a duly executed exercise notice
and payment in full for the number of shares of our common stock purchased upon such exercise, except in the case of a cashless exercise
as discussed below. The number of shares of common stock issuable upon exercise of the February 2020 Warrants is subject to adjustment
in certain circumstances, including a stock split of, stock dividend on, or a subdivision, combination or recapitalization of the common
stock. If we effect a merger, consolidation, sale of substantially all of our assets, or other similar transaction, then, upon any subsequent
exercise of a February 2020 Warrant, the February 2020 Warrant holder will have the right to receive any shares of the acquiring corporation
or other consideration it would have been entitled to receive if it had been a holder of the number of shares of common stock then issuable
upon exercise in full of the February 2020 Warrant.
Cashless
Exercise.
After the earlier of (a) the date that is 30 days after the initial exercise date of the February 2020 Warrants or (b)
such trading day that the aggregate volume of shares of common stock sold since the expiration of the Offering exceeds three times the
number of shares of common stock and common stock equivalents sold in the Offering, the holder shall be permitted to exercise the February
2020 Warrant, on a cashless basis, regardless of the then applicable trading price of the common stock on Nasdaq, for an aggregate number
of shares of common stock equal to the product of (i) the aggregate number of shares of common stock that would be issuable upon exercise
of the Warrant if such exercise were by means of a cash exercise and (ii) 0.70.
Additionally,
if at any time there is no effective registration statement registering, or the prospectus contained therein is not available for issuance
of, the shares issuable upon exercise of the warrant, the holder may exercise the warrant on a cashless basis, in which a portion of
the warrant is cancelled in payment of the purchase price payable in respect of the number of shares of our common stock purchasable
upon such exercise.
51
Exercise
Price.
Each February 2020 Warrant represents the right to purchase one share of common stock at an exercise price of $1.50 per share.
In addition, the exercise price per share is subject to adjustment for stock dividends, distributions, subdivisions, combinations, or
reclassifications, and for certain dilutive issuances. Subject to limited exceptions, a holder of warrants will not have the right to
exercise any portion of the warrant to the extent that, after giving effect to the exercise, the holder, together with its affiliates,
and any other person acting as a group together with the holder or any of its affiliates, would beneficially own in excess of 4.99% of
the number of shares of our common stock outstanding immediately after giving effect to its exercise. The holder, upon notice to the
Company, may increase or decrease the beneficial ownership limitation provisions of the warrant, provided that in no event shall the
limitation exceed 9.99% of the number of shares of our common stock outstanding immediately after giving effect to the exercise of the
warrant.
Fundamental
Transactions.
In the event we consummate a merger or consolidation with or into another person or other reorganization event in which
our common shares are converted or exchanged for securities, cash or other property, or we sell, lease, license, assign, transfer, convey
or otherwise dispose of all or substantially all of our assets or we or another person acquires 50% or more of our outstanding shares
of common stock, referred to as a fundamental transaction, then following such event, the holders will have the option, which may be
exercised within 30 days after the consummation of the fundamental transaction, to require the Company or the successor entity purchase
the Warrant from the holder by paying to the holder an amount of cash equal to the Black Scholes value of the remaining unexercised portion
of the warrant on the date of the consummation of the fundamental transaction. However, if the fundamental transaction is not within
the Company's control, including not approved by the Company's Board of Directors, the holder will only be entitled to receive
from the Company or any successor entity, as of the date of consummation of such fundamental transaction, the same type or form of consideration
(and in the same proportion), at the Black Scholes value of the unexercised portion of the Warrant, that is being offered and paid to
the holders of common stock of the Company in connection with the fundamental transaction, whether that consideration be in the form
of cash, stock or any combination thereof, or whether the holders of common stock are given the choice to receive from among alternative
forms of consideration in connection with the fundamental transaction.
Transferability.
Subject to applicable laws and restrictions, a holder may transfer a warrant upon surrender of the warrant to us with a completed
and signed assignment in the form attached to the warrant. The transferring holder will be responsible for any tax that liability that
may arise as a result of the transfer.
No
Market.
There is no public trading market for the February 2020 Warrants, and they are not listed for trading on Nasdaq or any other
securities exchange or market.
Rights
as Stockholder.
Except as set forth in the February 2020 Warrants, the holder of a warrant, solely in such holder's capacity
as a holder of a February 2020 Warrant, will not be entitled to vote, to receive dividends, or to any of the other rights of our stockholders.
Redemption
Rights.
We may redeem the warrants for $0.01 per warrant if our common stock closes above $8.00 per share for ten consecutive trading
days, provided that we may not do so prior to the first anniversary of expiration of the Rights Offering.
Amendments
and Waivers.
The provisions of each February 2020 Warrant may be modified or amended or the provisions thereof waived with the written
consent of us and the holder.
Maxim
and Ascendiant Warrants
Also
on February 6, 2020, in connection with a rights offering, we issued 203,904 common stock warrants (the "Maxim Warrants")
to Maxim Group LLC, as the dealer manager in such rights offering, and 50,976 common stock warrants (the "Ascendiant Warrants")
to Ascendiant Capital Markets, LLC, as a financial advisor to us in such rights offering. The Maxim Warrants and Ascendiant Warrants
have the same material terms as the February 2020 Warrants, except as described below.
The
Maxim Warrants and Ascendiant Warrants became exercisable 6 months from February 6, 2020 and will expire on January 17, 2025. The Maxim
Warrants and Ascendiant Warrants are exercisable at a price of $1.6295 per share, subject to adjustment for stock dividends, distributions,
subdivisions, combinations, or reclassifications, and for certain dilutive issuances. Subject to limited exceptions, a holder of the
Maxim Warrants and Ascendiant Warrants will not have the right to exercise any portion of such warrant to the extent that, after giving
effect to the exercise, the holder, together with its affiliates, and any other person acting as a group together with the holder or
any of its affiliates, would beneficially own in excess of 4.99% of the number of shares of our common stock outstanding immediately
after giving effect to its exercise. The holder, upon notice to us, may increase or decrease the beneficial ownership limitation provisions
of the warrant, provided that in no event shall the limitation exceed 9.99% of the number of shares of our common stock outstanding immediately
after giving effect to the exercise of the warrant.
52
The
Maxim Warrants and Ascendiant Warrants contain the same provisions regarding fundamental transactions as those contained in the February
2020 Warrants, except that the Maxim Warrants and Ascendiant Warrants do not provide the holders thereof with the option to require us,
or a successor entity, to pay an amount equal to the Black Scholes value of the warrants in the event of certain fundamental transactions.
The
Maxim Warrants and Ascendiant Warrants are not redeemable. The Maxim Warrants and Ascendiant Warrants contain unlimited "piggyback"
registration rights for a period of five years after February 6, 2020 (but not longer than 7 years from January 17, 2020) at our expense,
subject to certain exceptions. We relied on the exemption from registration available under Section 4(a)(2) of the Securities Act of
1933, as amended, in connection with the issuance of the warrants to Maxim and Ascendiant.
This
summary of the Maxim Warrants and Ascendiant Warrants is not complete. For the complete terms of the Maxim Warrants and Ascendiant Warrants,
you should refer to the form of Maxim Warrants and Ascendiant Warrants filed as an exhibit to the registration statement of which this
prospectus forms a part.
May
2018 Public Offering Warrants
On
May 14, 2018, we issued 379,000 common stock warrants (the "May 2018 Warrants") in a public offering. The material terms
and provisions of the May 2018 Warrants are summarized below. This summary of the May 2018 Warrants is not complete. For the complete
terms of the May 2018 Warrants, you should refer to the form of May 2018 Warrant filed as an exhibit to the registration statement of
which this prospectus forms a part.
Pursuant
to a warrant agency agreement between us and American Stock Transfer & Trust Company, LLC, as warrant agent, the May 2018 Warrants
were issued in book-entry form and are represented only by one or more global warrants deposited with the warrant agent, as custodian
on behalf of The Depository Trust Company, or DTC, and registered in the name of Cede & Co., a nominee of DTC, or as otherwise directed
by DTC.
Exercisability,
Exercise Price and Term.
The May 2018 Warrants entitle the holder to purchase shares of our common stock at an exercise price equal
to $1.4814 per share. The May 2018 Warrants were exercisable immediately and expire on the five-year anniversary of the issuance date.
The holder of a May 2018 Warrant will not be deemed a holder of our underlying common stock until the May 2018 Warrant is exercised,
except as set forth in the May 2018 Warrants.
The
exercise price and the number of shares issuable upon exercise of the May 2018 Warrants is subject to appropriate adjustment, similar
to that described with respect to the Series B Preferred Stock above, in the event of recapitalization events, stock dividends, stock
splits, stock combinations, reclassifications, reorganizations or similar events affecting our common stock. Subject to certain exclusions
contained in the May 2018 Warrant, the exercise price is also subject to adjustment in the event that we sell or grant any option to
purchase, or sell or grant any right to reprice, or otherwise dispose of or issue (or announce any offer, sale, grant or any option to
purchase or other disposition) any common stock or common stock equivalents (as defined in the May 2018 Warrants), at an effective price
per share less than the exercise price then in effect (including in the event we issued Series B Preferred Stock at a conversion price
lower than the initial conversion price of the Series B Preferred Stock). In addition, May 2018 Warrant holders may be eligible to elect
an alternative price in the event we issue certain variable price securities. The May 2018 Warrant holders must pay the exercise price
in cash upon exercise of the May 2018 Warrants, unless such May 2018 Warrant holders are utilizing the cashless exercise provision of
the May 2018 Warrants, which is only available in certain circumstances such as if the underlying shares are not registered with the
SEC pursuant to an effective registration statement.
53
Fundamental
Transactions.
In addition, in the event we consummate a merger or consolidation with or into another person or other reorganization
event in which our common shares are converted or exchanged for securities, cash or other property, or we sell, lease, license, assign,
transfer, convey or otherwise dispose of all or substantially all of our assets or we or another person acquires 50% or more of our outstanding
shares of common stock, referred to as a fundamental transaction, then following such event, the holders of the May 2018 Warrants will
be entitled to receive upon exercise of the May 2018 Warrants the same kind and amount of securities, cash or property which the holders
would have received had they exercised the May 2018 Warrants immediately prior to such fundamental transaction. Any successor to us or
surviving entity is required to assume the obligations under the warrants. Notwithstanding the foregoing, in the event of a fundamental
transaction, the holders will have the option, which may be exercised within 30 days after the consummation of the fundamental transaction,
to require us or the successor entity purchase the Warrant from the holder by paying to the holder an amount of cash equal to the Black
Scholes value of the remaining unexercised portion of the warrant on the date of the consummation of the fundamental transaction. However,
if the fundamental transaction is not within our control, including not approved by our Board of Directors, the holder will only be entitled
to receive from us or any successor entity, as of the date of consummation of such fundamental transaction, the same type or form of
consideration (and in the same proportion), at the Black Scholes value of the unexercised portion of the May 2018 Warrant, that is being
offered and paid to the holders of our common stock in connection with the fundamental transaction, whether that consideration be in
the form of cash, stock or any combination thereof, or whether the holders of common stock are given the choice to receive from among
alternative forms of consideration in connection with the fundamental transaction.
Upon
the holder's exercise of a May 2018 Warrant, we will issue the shares of common stock issuable upon exercise of the May 2018 Warrant
within two trading days following our receipt of a notice of exercise, provided that payment of the exercise price has been made (unless
exercised via the "cashless" exercise provision).
Prior
to the exercise of any May 2018 Warrants to purchase common stock, holders of the May 2018 Warrants will not have any of the rights of
holders of the common stock purchasable upon exercise, including the right to vote, except as set forth therein.
May
2018 Warrant holders may exercise the May 2018 Warrants only if the issuance of the shares of common stock upon exercise of the May 2018
Warrants is covered by an effective registration statement, or an exemption from registration is available under the Securities Act and
the securities laws of the state in which the holder resides. The May 2018 Warrant holders must pay the exercise price in cash upon exercise
of the May 2018 Warrants unless there is not an effective registration statement or, if required, there is not an effective state law
registration or exemption covering the issuance of the shares underlying the May 2018 Warrants (in which case, the May 2018 Warrants
may only be exercised via a "cashless" exercise provision).
Beneficial
Ownership Limitation
. The May 2018 Warrant provides that we may not effect any exercise of the May 2018 Warrants, with certain exceptions,
to the extent that, after giving effect to an attempted exercise, the holder (together with such holder's affiliates, and any persons
acting as a group together with such holder or any of such holder's affiliates) would beneficially own a number of shares of common
stock in excess of 4.99% (or, at the election of the holder, 9.99%) of the shares of our common stock then outstanding after giving effect
to such exercise, referred to as the May 2018 Warrant Beneficial Ownership Limitation; provided, however, that upon notice to us, the
holder may increase or decrease the May 2018 Warrant Beneficial Ownership Limitation, provided that in no event may the May 2018 Warrant
Beneficial Ownership Limitation exceed 9.99% and any increase in the May 2018 Warrant Beneficial Ownership Limitation will not be effective
until 61 days following notice of such increase from the holder to us.
Cashless
Exercise.
If a May 2018 Warrant is exercised via the "cashless" exercise provision, the holder will receive the number
of shares equal to the quotient obtained by dividing (i) the difference between the VWAP (as determined pursuant to the terms of the
May 2018 Warrants) and the exercise price of the May 2018 Warrant multiplied by the number of shares issuable under the May 2018 Warrant
if such exercise were by means of a cash exercise by (ii) the VWAP (as determined pursuant to the terms of the May 2018 Warrants).
Jurisdiction
and Waiver of Trial by Jury
. Other than with respect to suits, actions or proceedings arising under the federal securities laws,
the May 2018 Warrant provides for investors to consent to exclusive jurisdiction to courts located in New York, New York and provides
for a waiver of the right to a trial by jury. It also provides that disputes are governed by New York law.
54
Repricing
of Series E Warrants and Issuance of New Warrants
On
March 6, 2018, we entered into a Warrant Amendment Agreement (the "Amendment Agreement") with the holders of previously issued
Series E Common Stock Purchase Warrants (collectively, the "Series E Investors").
In
connection with that certain Series E Common Stock Purchase Warrant between us and Series E Investors dated July 8, 2016, (the "Series
E Warrant Agreement") we issued to the Series E Investors warrants to purchase up to 22,278 shares of common stock (the "Warrant
Shares") at an exercise price of $60.00 per share, (the "Series E Investor Warrants"). Under the terms of the Amendment
Agreement, in consideration of the Series E Investors exercising 22,278 of the Series E Investor Warrants (the "Series E Warrant
Exercise"), the exercise price per share of the Series E Investor Warrants was reduced to $63.75 per share. In addition, and as
further consideration, we issued to the Series E Investors warrants to purchase up to the number of shares of common stock equal to 100%
of the number of Series E Warrant Shares issued pursuant to the Series E Warrant Exercise at an exercise price per share equal to $60.00
per share, the closing bid price for our common stock on March 5, 2018 (the "New Warrants"). The Series E Investors may exercise
the remaining 33,899 Series E Investor Warrants at their discretion. The Amendment Agreement incorporated portions of the Series E Warrant
Agreement, which contained customary representations, warranties and covenants by each of us and the Series E Investors.
The
New Warrants are exercisable for up to five years from the Effective Date. The exercise price and number of shares issuable upon exercise
of the New Warrants are subject to adjustment for stock splits, combinations, recapitalization events and certain dilutive issuances.
The New Warrants are required to be exercised for cash, provided that if during the term of the New Warrants there is not an effective
registration statement under the Securities Act covering the resale of the shares issuable upon exercise of the New Warrants, then the
New Warrants may be exercised on a cashless (net exercise) basis. The New Warrant is attached as an exhibit to the registration statement
of which this prospectus forms a part and is incorporated herein by reference.
Securities
Issued to North Stadium Investments, LLC
On
July 28, 2017, in connection with a $2.5 million term loan, we issued to North Stadium a warrant to acquire shares of common stock with
a five-year term (the "North Stadium Warrant"). As a result of our reverse stock splits since the North Stadium Warrant was
issued, the North Stadium Warrant is exercisable for 1,833 shares of common stock as of the date of this prospectus, at an exercise price
of $151.20 per share. The North Stadium Warrant also has a net exercise provision under which the holder may, in lieu of payment of the
exercise price in cash, surrender the North Stadium Warrant and receive a net number of shares of common stock based on the fair market
value of our common stock at the time of exercise of the North Stadium Warrant after deduction of the aggregate exercise price. The North
Stadium Warrant also contains provisions for the adjustment of the exercise price and the aggregate number of shares of common stock
issuable upon the exercise of the North Stadium Warrant in the event of dividends, share splits, reorganizations, reclassifications and
consolidations. The North Stadium Warrant is attached as an exhibit to the registration statement of which this prospectus forms a part
and is incorporated herein by reference.
Outstanding
December 2012 Warrants
On
December 17, 2012, in connection with entering into a commercial lending transaction, we issued warrants to purchase a total of 270,000
shares of our Series F convertible preferred stock to two of our institutional lenders. These warrants are exercisable for ten years
after the date of issuance. As a result of our reverse stock splits since these warrants were issued and other corporate changes, these
warrants are exercisable for 13 shares of common stock as of the date of this prospectus, at an exercise price of $278,370 per share.
These warrants have a net exercise provision under which the holder may, in lieu of payment of the exercise price in cash, surrender
the warrant and receive a net number of shares of common stock based on the fair market value of our common stock at the time of exercise
of the warrant after deduction of the aggregate exercise price. Each of these warrants also contains provisions for the adjustment of
the exercise price and the aggregate number of shares of common stock issuable upon the exercise of the warrant in the event of dividends,
share splits, reorganizations, reclassifications and consolidations. These warrants are attached as exhibits to the registration statement
of which this prospectus is a part and are incorporated herein by reference.
55
Series
D Preferred Stock Included in Units Issuable in the Rights Offering
We
will authorize the Series D Preferred Stock by filing a certificate of designation with the Secretary of State of Delaware. The certificate
of designation may be authorized by our Board without approval by our stockholders.
Conversion.
Each share of Preferred Stock will be convertible at the option of the holder at any time, into the number of shares of our common
stock determined by dividing the $1,000 stated value per share of the Preferred Stock by a conversion price of $                  per share. In addition,
the conversion price per share is subject to adjustment for stock dividends, distributions, subdivisions, combinations or reclassifications.
Subject to limited exceptions, a holder of the Preferred Stock will not have the right to convert any portion of the Preferred Stock
to the extent that, after giving effect to the conversion, the holder, together with its affiliates, would beneficially own in excess
of 4.99% of the number of shares of our common stock outstanding immediately after giving effect to its conversion. A holder of the Preferred
Stock, upon notice to us, may increase or decrease the beneficial ownership limitation provisions of such holder's Preferred Stock,
provided that in no event shall the limitation exceed 9.99% of the number of shares of our common stock outstanding immediately after
giving effect to its conversion.
Fundamental
Transactions.
In the event we effect certain mergers, consolidations, sales of substantially all of our assets, tender or exchange
offers, reclassifications or share exchanges in which our common stock is effectively converted into or exchanged for other securities,
cash or property, we consummate a business combination in which another person acquires 50% of the outstanding shares of our common stock,
or any person or group becomes the beneficial owner of 50% of the aggregate ordinary voting power represented by our issued and outstanding
common stock, then, upon any subsequent conversion of the Preferred Stock, the holders of the Preferred Stock will have the right to
receive any shares of the acquiring corporation or other consideration it would have been entitled to receive if it had been a holder
of the number of shares of common stock then issuable upon conversion in full of the Preferred Stock.
Dividends.
Holders of Preferred Stock shall be entitled to receive dividends (on an as-if-converted-to-common-stock basis) in the same form
as dividends actually paid on shares of the common stock when, as and if such dividends are paid on shares of common stock.
Voting
Rights.
Except as otherwise provided in the certificate of designation or as otherwise required by law, the Preferred Stock has no
voting rights.
Liquidation
Preference
.
Upon our liquidation, dissolution or winding-up, whether voluntary or involuntary, holders of Preferred Stock
will be entitled to receive out of our assets, whether capital or surplus, the same amount that a holder of common stock would receive
if the Preferred Stock were fully converted (disregarding for such purpose any conversion limitations under the certificate of designation)
to common stock, which amounts shall be paid pari passu with all holders of common stock.
Redemption
Rights.
We are not obligated to redeem or repurchase any shares of Preferred Stock. Shares of Preferred Stock are not otherwise entitled
to any redemption rights, or mandatory sinking fund or analogous provisions.
Warrants
Included in Units Issuable in the Rights Offering
The
Warrants to be issued as a part of this Rights Offering will be designated as our "Series 2" warrants. These Warrants will
be separately transferable following their issuance and through their expiration five years from the date of issuance. Each Warrant will
entitle the holder to purchase one share of our common stock at an exercise price of $                per share from the date of issuance through its
expiration. There is no public trading market for the Warrants and they will not be listed for trading on Nasdaq or any other securities
exchange or market. The common stock underlying the Warrants, upon issuance, will also be traded on Nasdaq under the symbol "SINT."
All
Warrants that are purchased in the Rights Offering as part of the Units will be issued in book-entry, or uncertificated, form meaning
that you will receive a DRS account statement from our transfer agent reflecting ownership of Warrants if you are a holder of record.
The Subscription Agent will arrange for the issuance of the Warrants as soon as practicable after the closing, which will occur as soon
as practicable after the Rights Offering has expired but which may occur up to five business days thereafter. At closing, all prorating
calculations and reductions contemplated by the terms of the Rights Offering will have been effected and payment to us for the subscribed-for
Units will have cleared. If you hold your shares of common stock in the name of a bank, broker, dealer, or other nominee, DTC will credit
your account with your nominee with the Warrants you purchased in the Rights Offering.
56
Exercisability
Each
Warrant will be exercisable at any time and will expire five years from the date of issuance. The Warrants will be exercisable, at the
option of each holder, in whole or in part by delivering to us a duly executed exercise notice and payment in full for the number of
shares of our common stock purchased upon such exercise, except in the case of a cashless exercise as discussed below. The number of
shares of common stock issuable upon exercise of the Warrants is subject to adjustment in certain circumstances, including a stock split
of, stock dividend on, or a subdivision, combination or recapitalization of the common stock. If we effect a merger, consolidation, sale
of substantially all of our assets, or other similar transaction, then, upon any subsequent exercise of a Warrants, the Warrant holder
will have the right to receive any shares of the acquiring corporation or other consideration it would have been entitled to receive
if it had been a holder of the number of shares of common stock then issuable upon exercise in full of the Warrant.
Cashless
Exercise
If
at any time there is no effective registration statement registering, or the prospectus contained therein is not available for issuance
of, the shares issuable upon exercise of the warrant, the holder may exercise the warrant on a cashless basis. When exercised on a cashless
basis, a portion of the warrant is cancelled in payment of the purchase price payable in respect of the number of shares of our common
stock purchasable upon such exercise.
Exercise
Price
Each
warrant represents the right to purchase one share of common stock at an exercise price of $                 per share. In addition, the exercise price
per share is subject to adjustment for stock dividends, distributions, subdivisions, combinations, or reclassifications, and for certain
dilutive issuances. Subject to limited exceptions, a holder of warrants will not have the right to exercise any portion of the warrant
to the extent that, after giving effect to the exercise, the holder, together with its affiliates, and any other person acting as a group
together with the holder or any of its affiliates, would beneficially own in excess of 4.99% of the number of shares of our common stock
outstanding immediately after giving effect to its exercise. The holder, upon notice to us, may increase or decrease the beneficial ownership
limitation provisions of the warrant, provided that in no event shall the limitation exceed 9.99% of the number of shares of our common
stock outstanding immediately after giving effect to the exercise of the warrant.
Transferability
Subject
to applicable laws and restrictions, a holder may transfer a warrant upon surrender of the warrant to us with a completed and signed
assignment in the form attached to the warrant. The transferring holder will be responsible for any tax that liability that may arise
as a result of the transfer.
No
Market
There
is no public trading market for the Warrants and they will not be listed for trading on Nasdaq or any other securities exchange or market.
Rights
as Stockholder
Except
as set forth in the Warrant, the holder of a Warrant, solely in such holder's capacity as a holder of a Warrant, will not be entitled
to vote, to receive dividends, or to any of the other rights of our stockholders.
Amendments
and Waivers
The
provisions of each Warrant may be modified or amended or the provisions thereof waived with the written consent of us and the holder.
The
Warrants will be issued pursuant to a warrant agent agreement by and between us and America Stock Transfer & Trust Company, the warrant
agent.
57
Effects
of Anti-Takeover Provisions of Our Restated Certificate of Incorporation, Our Restated Bylaws and Delaware Law
The
provisions of (1) Delaware law, (2) our Restated Certificate of Incorporation and (3) our Restated Bylaws discussed below could discourage
or make it more difficult to prevail in a proxy contest or effect other change in our management or the acquisition of control by a holder
of a substantial amount of our voting stock. It is possible that these provisions could make it more difficult to accomplish, or could
deter, transactions that stockholders may otherwise consider to be in their best interests or our best interests. These provisions are
intended to enhance the likelihood of continuity and stability in the composition of our board of directors and in the policies formulated
by the board of directors and to discourage certain types of transactions that may involve an actual or threatened change in control
of our company. These provisions are designed to reduce our vulnerability to an unsolicited acquisition proposal. These provisions also
are intended to discourage certain tactics that may be used in proxy fights. These provisions also may have the effect of preventing
changes in our management.
Delaware
Statutory Business Combinations Provision.
We are subject to the anti-takeover provisions of Section 203 of the Delaware General
Corporation Law. In general, Section 203 prohibits a publicly-held Delaware corporation from engaging in a "business combination"
with an "interested stockholder" for a period of three years after the date of the transaction in which the person became
an interested stockholder, unless the business combination is, or the transaction in which the person became an interested stockholder
was, approved in a prescribed manner or another prescribed exception applies. For purposes of Section 203, a "business combination"
is defined broadly to include a merger, asset sale or other transaction resulting in a financial benefit to the interested stockholder,
and, subject to certain exceptions, an "interested stockholder" is a person who, together with his or her affiliates and
associates, owns (or within three years prior, did own) 15% or more of the corporation's voting stock.
Classified
Board of Directors; Appointment of Directors to Fill Vacancies; Removal of Directors for Cause.
Our Restated Certificate of Incorporation
provides that our board of directors will be divided into three classes as nearly equal in number as possible. Each year the stockholders
will elect the members of one of the three classes to a three-year term of office. All directors elected to our classified board of directors
will serve until the election and qualification of their respective successors or their earlier resignation or removal. The board of
directors is authorized to create new directorships and to fill any positions so created and is permitted to specify the class to which
any new position is assigned. The person filling any of these positions would serve for the term applicable to that class. The board
of directors (or its remaining members, even if less than a quorum) is also empowered to fill vacancies on the board of directors occurring
for any reason for the remainder of the term of the class of directors in which the vacancy occurred. Members of the board of directors
may only be removed for cause and only by the affirmative vote of holders of at least 80% of our outstanding voting stock. These provisions
are likely to increase the time required for stockholders to change the composition of the board of directors. For example, in general,
at least two annual meetings will be necessary for stockholders to effect a change in a majority of the members of the board of directors.
Authorization
of Blank Check Preferred Stock.
Our Restated Certificate of Incorporation provides that our board of directors is authorized to issue,
without stockholder approval, blank check preferred stock. Blank check preferred stock can operate as a defensive measure known as a
"poison pill" by diluting the stock ownership of a potential hostile acquirer to prevent an acquisition that is not approved
by our board of directors.
Advance
Notice Provisions for Stockholder Proposals and Stockholder Nominations of Directors
. Our Restated Bylaws provide that, for nominations
to the board of directors or for other business to be properly brought by a stockholder before a meeting of stockholders, the stockholder
must first have given timely notice of the proposal in writing to our Secretary. For an annual meeting, a stockholder's notice
generally must be delivered not less than 90 days nor more than 120 days prior to the anniversary of the mailing date of the proxy statement
for the previous year's annual meeting. For a special meeting, the notice must generally be delivered no less than 60 days nor
more than 90 days prior to the special meeting or ten days following the day on which public announcement of the meeting is first made.
Detailed requirements as to the form of the notice and information required in the notice are specified in our Restated Bylaws. If it
is determined that business was not properly brought before a meeting in accordance with our bylaw provisions, this business will not
be conducted at the meeting.
58
Special
Meetings of Stockholders.
Special meetings of the stockholders may be called only by our board of directors pursuant to a resolution
adopted by a majority of the total number of directors.
No
Stockholder Action by Written Consent.
Our Restated Certificate of Incorporation does not permit our stockholders to act by written
consent. As a result, any action to be effected by our stockholders must be effected at a duly called annual or special meeting of the
stockholders.
Super-Majority
Stockholder Vote required for Certain Actions.
The Delaware General Corporation Law provides generally that the affirmative vote
of a majority of the shares entitled to vote on any matter is required to amend a corporation's certificate of incorporation or
bylaws, unless the corporation's certificate of incorporation or bylaws, as the case may be, requires a greater percentage. Our
Restated Certificate of Incorporation requires the affirmative vote of the holders of at least 80% of our outstanding voting stock to
amend or repeal any of the provisions discussed in this section of this prospectus entitled "Effect of Anti-Takeover Provisions
of Our Restated Certificate of Incorporation, Our Restated Bylaws and Delaware Law" or to reduce the number of authorized shares
of common stock or preferred stock. This 80% stockholder vote would be in addition to any separate class vote that might in the future
be required pursuant to the terms of any preferred stock that might then be outstanding. An 80% vote is also required for any amendment
to, or repeal of, our Restated Bylaws by the stockholders. Our Restated Bylaws may be amended or repealed by a simple majority vote of
the board of directors.
Potential
Effects of Authorized but Unissued Stock
We
have shares of common stock and preferred stock available for future issuance without stockholder approval. We may utilize these additional
shares for a variety of corporate purposes, including future public offerings to raise additional capital, to facilitate corporate acquisitions
or payment as a dividend on the capital stock.
The
existence of unissued and unreserved common stock and preferred stock may enable our board of directors to issue shares to persons friendly
to current management or to issue preferred stock with terms that could render more difficult or discourage a third-party attempt to
obtain control of us by means of a merger, tender offer, proxy contest or otherwise, thereby protecting the continuity of our management.
In addition, the board of directors has the discretion to determine designations, rights, preferences, privileges and restrictions, including
voting rights, dividend rights, conversion rights, redemption privileges and liquidation preferences of each series of preferred stock,
all to the fullest extent permissible under the Delaware General Corporation Law and subject to any limitations set forth in our certificate
of incorporation. The purpose of authorizing the board of directors to issue preferred stock and to determine the rights and preferences
applicable to such preferred stock is to eliminate delays associated with a stockholder vote on specific issuances. The issuance of preferred
stock, while providing desirable flexibility in connection with possible financings, acquisitions and other corporate purposes, could
have the effect of making it more difficult for a third-party to acquire, or could discourage a third-party from acquiring, a majority
of our outstanding voting stock.
Transfer
Agent and Warrant Agent
The
transfer agent and registrar for our common stock and the warrant agent for the Warrants is American Stock Transfer & Trust Company,
LLC. The transfer agent and the registrar's address is 59 Maiden Lane, New York, New York 10038.
59
PLAN
OF DISTRIBUTION
Promptly
following the effective date of the registration statement of which this prospectus form is a part, we will distribute the Subscription
Rights, Rights Certificates and copies of this prospectus to the holders of our common stock, Series B Preferred Stock, Series C Preferred
Stock, and Participating Warrants on the Record Date. Subscription Rights holders who wish to exercise their Subscription Rights and
purchase Units must complete the Subscription Rights Certificate and return it with payment for the shares to the Subscription Agent
at the following address:
By
    mail:
By
    hand or overnight courier:
If
you have any questions, you should contact our Information Agent for the Rights Offering: D.F. King & Co, Inc., toll free at ______________
or by mail at ______________________________________.
Other
than as described in this prospectus, we do not know of any existing agreements between any stockholder, broker, dealer, underwriter
or agent relating to the sale or distribution of the underlying securities.
Maxim
Group LLC will act as dealer-manager for the Rights Offering. In such capacity, the dealer-manager will provide marketing assistance
and financial advice (including determining the Subscription Price and the structure of the Rights Offering) to us in connection with
this offering and will solicit the exercise of Subscription Rights and participation in the Over-Subscription Privilege. The dealer-manager
will provide us with updated investor feedback and recommendations on pricing and structure through to the end of the subscription period.
The dealer- manager is not underwriting or placing any of the Subscription Rights or the shares of our Preferred Stock or Warrants being
issued in this offering and do not make any recommendation with respect to such Subscription Rights (including with respect to the exercise
or expiration of such Subscription Rights), shares or Warrants.
In
connection with this Rights Offering, we have agreed to pay fees to Maxim Group LLC as dealer-manager an aggregate cash fee equal to
7.0% of the gross proceeds received by us directly from exercises of the Subscription Rights. We advanced $20,000 (the "Advance")
to Maxim Group LLC as an advance against the expense allowance upon their engagement as dealer-manager and agreed to reimburse
the reasonable fees and expenses of the dealer-manager up to $100,000 (including the Advance). Any portion of the Advance not used for
Maxim's actual out-of-pocket expenses shall be promptly reimbursed to us. Additionally, we agreed to grant to Maxim (or its designated
affiliates) share purchase warrants (the "Dealer Warrants") covering a number of shares of our common stock equal to 4.0%
of the common stock issuable upon exercise of the Preferred Stock sold in the Rights Offering. In the event that we engage Ascendiant
Capital Markets, LLC as a financial advisor in connection with the Offering, Maxim agrees that Ascendiant shall be entitled to 15% of
the total fee earned by Maxim under the dealer-management agreement and 15% of the Dealer Warrants issuable upon Closing (i.e., Maxim
will receive 85% of the cash fee and Dealer Warrants, and Ascendiant shall receive 15% of the cash fee and Dealer Warrants). The Dealer
Warrants will be non-exercisable for six (6) months after the date of the Closing and will expire five years after the commencement
of sales of the offering. The Dealer Warrants will be exercisable at a price equal to 110.0% of the conversion price of the Convertible
Preferred. The Warrants shall not be redeemable. The Dealer Warrants may not be sold, transferred, assigned, pledged or hypothecated
for a period of six months following the  commencement of sales of the offering, except that they may be assigned, in whole
or in part, to any officer or partner of Maxim (or to Ascendiant). The Dealer Warrants may be exercised as to all or a lesser number
of shares of our common stock, will contain unlimited "piggyback" registration rights for a period of five years after the
commencement of sales of the offering at our expense.
Upon
the successful completion of the Rights Offering for gross proceeds of at least six million dollars ($6,000,000), for a period of nine
(9) months from the final Closing, we will grant Maxim Group LLC the right of first refusal to act as lead managing underwriter, lead
book runner or lead placement agent for any and all future public and private equity and any public debt or equity-linked debt offerings.
We
have also agreed to indemnify the dealer-manager and their respective affiliates against certain liabilities arising under the Securities
Act. The dealer-manager participation in this offering are subject to customary conditions contained in the dealer-manager agreement,
including the receipt by the dealer-manager of an opinion of our counsel. The dealer-manager and their affiliates may provide to us from
time to time in the future in the ordinary course of their business certain financial advisory, investment banking and other services
for which they will be entitled to receive fees.
Subject
to certain exceptions, we have agreed not to offer, issue, sell, contract to sell, encumber, grant any option for the sale of or otherwise
dispose of any common shares or other securities convertible into or exercisable or exchangeable for common shares for a period of               days after the expiration of this Rights Offering.
Our
common stock is listed on the Nasdaq Capital Market, or Nasdaq, under the symbol "SINT."
60
EXPERTS
The
consolidated financial statements of SINTX Technologies, Inc., as of December 31, 2021 and 2020, and for each of the years in the two-year
period ended December 31, 2021, have been incorporated by reference herein in reliance on the report of Tanner LLC, an independent registered
public accounting firm (the report on the consolidated financial statements contains an explanatory paragraph regarding the Company's
ability to continue as a going concern), given on the authority of said firm as experts in auditing and accounting.
LEGAL
MATTERS
The
validity of the securities offered hereby will be passed upon for us by Dorsey & Whitney LLP, Salt Lake City, Utah. The dealer-manager
is being represented by Ellenoff Grossman & Schole LLP, New York, New York.
61
Subscription
Rights to Purchase Up to 10,000 Units
Consisting
of an Aggregate of Up to Shares of Series D Convertible Preferred Stock
and
Warrants to Purchase Up to Shares of Common Stock
at
a Subscription Price of $1,000 Per Unit and
Up
to Shares of Common Stock Issuable upon the Conversion of
Series
D Convertible Preferred Stock Included in the Units and
Up
to Shares of Common Stock Issuable upon the Exercise of
Warrants
Included in the Units
PROSPECTUS
Dealer-Manager
Maxim
Group LLC
,
2022
PART
II
INFORMATION
NOT REQUIRED IN PROSPECTUS
Item
13. Other Expenses of Issuance and Distribution
The
following is a statement of estimated expenses in connection with the issuance and distribution of the securities being registered, excluding
dealer-manager fees. All expenses incurred with respect to the registration of the common stock will be borne by us. All amounts are
estimates except the SEC registration fee and the FINRA filing fee.
Item
Amount to be
Paid
SEC registration fee
$
FINRA filing fee
$
Printing expenses
*
Legal fees and expenses
*
Accounting fees and expenses
*
Subscription Agent, Information Agent and Warrant Agent Fees and Expenses
*
Miscellaneous expenses
*
Total
$
*
*
To be provided by amendment.
Item
14. Indemnification of Directors and Officers
Section
145 of the Delaware General Corporation Law authorizes a court to award, or a corporation's board of directors to grant, indemnity
to directors and officers in terms sufficiently broad to permit such indemnification under certain circumstances for liabilities, including
reimbursement for expenses incurred, arising under the Securities Act.
The
Registrant's amended certificate of incorporation provides for indemnification of its directors and executive officers to the maximum
extent permitted by the Delaware General Corporation Law, and the Registrant's amended and restated bylaws provide for indemnification
of its directors and executive officers to the maximum extent permitted by the Delaware General Corporation Law.
In
addition, the Registrant has entered into indemnification agreements with each of its current directors and executive officers. These
agreements will require the Registrant to indemnify these individuals to the fullest extent permitted under Delaware law against liabilities
that may arise by reason of their service to the Registrant and to advance expenses incurred as a result of any proceeding against them
as to which they could be indemnified. The Registrant also intends to enter into indemnification agreements with its future directors
and executive officers.
Item
15. Recent Sales of Unregistered Securities.
None.
II-
1
Item
16. Exhibits and Financial Statement Schedules.
(a)
Exhibits
The
following exhibits are being filed with this Registration Statement:
Exhibit
Number
Exhibit
    Description
Filed
                                            with
this
Report
Incorporated
                                            by
Reference
    herein from
Form
    or Schedule
Filing
    Date
SEC
                                            File/Reg.
Number
1.1#
Form
    of Dealer Manager Agreement
2.1+
Asset Purchase Agreement by and among Amedica Corporation, CTL Corporation and US Spine Inc. dated as of September 5, 2018
Form
    8-K (Exhibit 2.1)
10/5/18
001-33624
2.2+†
Asset Purchase Agreement by and among SINTX Technologies, Inc. and B4C, LLC, dated July 20, 2021.
Form
    8-K (Exhibit 2.1)
7/26/21
001-33624
3.1
Restated Certificate of Incorporation of the Registrant
Form
    8-K (Exhibit 3.1)
2/20/14
001-33624
3.1.1
Certificate of Amendment to the Restated Certificate of Incorporation
Form
    8-K (Exhibit 3.1)
1/22/16
001-33624
3.1.2
Certificate of Amendment to the Restated Certificate of Incorporation
Form
    8-K (Exhibit 3.1)
11/16/17
001-33624
3.1.3
Certificate of Designation of Series B Preferred Stock
Form
8-K (Exhibit 3.1)
5/15/18
001-33624
3.1.4
Certificate of Amendment to the Restated Certificate of Incorporation
Form
8-K (Exhibit 3.1)
11/02/18
001-33624
3.1.5
Certificate of Amendment to the Restated Certificate of Incorporation of SINTX Technologies, Inc.
Form
8-K (Exhibit 3.1)
7/26/19
001-33624
3.1.6
Certificate of Designation of Series C Preferred Stock
Form
    8-K (Exhibit 3.1)
2/07/20
001-33624
3.1.7#
Certificate
    of Designation of Series D Preferred Stock
3.2
Amended and Restated Bylaws of SINTX Technologies, Inc.
Form
    8-K (Exhibit 3.1)
10/01/21
001-33624
4.1
Form of Common Stock Certificate of the Registrant
Amendment
    No. 3 to Form S-1 (Exhibit 4.1)
1/29/14
333-192232
4.2
Warrant to Purchase Shares of Series F Convertible Preferred Stock by and between the Registrant and GE Capital Equity Investments, Inc., dated as of December 17, 2012
Form
    S-1 (Exhibit 4.10)
11/8/13
333-192232
II-
2
4.3
Warrant to Purchase Shares of Series F Convertible Preferred Stock by and between the Registrant and Zions First National Bank, dated as of December 17, 2012
Form
    S-1 (Exhibit 4.11)
11/8/13
333-192232
4.4
North Stadium Investments, LLC Warrant to Purchase Common Stock
Form
    8-K (Exhibit 4.2)
8/3/17
001-33624
4.5
Common Stock Purchase Warrant
Form
    8-K (Exhibit 4.1)
5/15/18
001-33624
4.6
Form of Warrant Agency Agreement between Amedica Corporation and American Stock Transfer and Trust Company, LLC
Form
    S-1 (Exhibit 4.28)
4/26/18
333-223032
4.7
Form of Common Stock Warrant
Form
    S-1/A
1/15/20
333-234438
4.8
Form of Warrant Agency Agreement between Amedica Corporation and American Stock Transfer and Trust Company, LLC, dated February 6, 2020
Form
    8-K (Exhibit 10.1)
2/07/20
001-33624
4.9
Warrant Issued to Maxim Group LLC on February 6, 2020
Form
    8-K (Exhibit 4.1)
2/07/20
001-33624
4.10
Warrant Issued to Ascendiant Capital Markets, LLC on February 6, 2020
Form
    8-K (Exhibit 4.2)
2/07/20
001-33624
4.24
Form of Indenture
Form
S-3
(Exhibit 4.2)
3/25/19
333-230492
4.25#
Form
    of Common Stock Warrant
4.26#
Form
    of Warrant Agency Agreement between Amedica Corporation and American Stock Transfer and Trust Company, LLC
4.27#
Form
    of Non-Transferrable Subscription Rights Certificate
5.1#
Opinion
    of Dorsey & Whitney LLP
10.1
Centrepointe Business Park Lease Agreement Net by and between the Registrant and Centrepointe Properties, LLC, dated as of April 21, 2009
Form
    S-1 (Exhibit 10.10)
11/8/13
333-192232
II-
3
10.2
First Addendum to Centrepointe Business Park Lease Agreement Net by and between the Registrant and Centrepointe Properties, LLC, dated as of January 31, 2012
Form
    S-1 (Exhibit 10.11)
11/8/13
333-192232
10.3
Form of Change of Control Agreement*
Form
    8-K (Exhibit 10.1)
7/22/15
001-33624
10.4
Form of Indemnification Agreement by and between the Registrant and its officers and directors
Amendment
                                            No. 2
to
    Form S-1 (Exhibit 10.14)
12/20/13
333-192232
10.5
Exchange Agreement dated April 4, 2016, by and among SINTX Corporation and Riverside Merchant Partners, LLC
Form
    8-K (Exhibit 10.2)
5/05/16
001-33624
10.6
Security Agreement, dated July 28, 2017
Form
    8-K (Exhibit 10.1)
8/3/17
001-33624
10.7
Form of Warrant Amendment Agreement
Form
S-1 (Exhibit 10.26)
4/26/18
333-223032
10.8
Amendment to Centrepointe Business Park Lease Agreement, dated June 7, 2019, between SINTX Technologies, Inc. and Centrepointe Properties, LLC.
Form
8-K (Exhibit 10.1)
6/10/19
001-33624
10.9
Promissory Note issued by CTL Corporation in favor of Amedica Corporation dated as of October 1, 2018.
Form
8-K (Exhibit 10.1)
10/5/18
001-33624
10.10
Security Agreement between Amedica Corporation and CTL Corporation dated as of October 1, 2018.
Form
8-K (Exhibit 10.2)
10/5/18
001-33624
10.11
Guaranty between Amedica Corporation and Daniel Chon dated as of October 1, 2018.
Form
8-K (Exhibit 10.3)
10/5/18
001-33624
10.12
ROFN Security Agreement between Amedica Corporation and CTL Corporation dated as of October 1, 2018.
From
8-K (Exhibit 10.4)
10/5/18
001-33624
10.13
Promissory Note, dated April 28, 2020 between SINTX Technologies, Inc. and First State Community Bank.
Form
    8-K (Exhibit 10.1)
4/30/20
001-33624
10.14
Form of Share Purchase Agreement
Form
    8-K (Exhibit 99.1)
6/29/20
001-33624
10.15
Placement Agency Agreement
Form
    8-K (Exhibit 99.2)
6/29/20
001-33624
II-
4
10.16
Form of Share Purchase Agreement
Form
    8-K (Exhibit 99.1)
7/20/20
001-33624
10.17
Placement Agency Agreement
Form
    8-K (Exhibit 99.2)
7/20/20
001-33624
10.18
Form of Share Purchase Agreement
Form
    8-K (Exhibit 99.1)
8/6/20
001-33624
10.19
Placement Agency Agreement
Form
    8-K (Exhibit 99.2)
8/6/20
001-33624
10.20
Form of Indenture
Form
    S-3 (Exhibit 4.18)
10/2/20
333-249267
10.21
Equity Distribution Agreement, dated as of February 25, 2021, by and between SINTX Technologies, Inc. and Maxim Group LLC
Form
    8-K (Exhibit 10.1)
2/26/20
001-33624
10.22
2020 Equity Incentive Plan
Defn
    14a Proxy Statement
7/10/2020
001-33624
21.1
List of Subsidiaries of the Registrant
X
23.1
Consent of Independent Registered Public Accounting Firm, Tanner LLC
X
23.2#
Consent
    of Dorsey & Whitney LLP (included in Exhibit 5.1)
24.1
Power of Attorney (Signature Block)
X
99.1#
Form
    of Instructions as to Use of Subscription Rights Certificates
99.2#
Form
    of Letter to Shareholders who are Record Holders
99.3#
Form
    of Letter to Brokers, Dealers, Banks and Other Nominees
99.4#
Form
    of Broker Letter to Clients Who are Beneficial Holders
99.5#
Form
    of Beneficial Owner Election Form
99.6#
Form
    of Nominee Holder Certification
99.7#
Form
    of Notice of Important Tax Information
107
Filing Fee Table
X
*
Indicates management contract or compensatory plan or arrangement.
#
To be filed by amendment or as an exhibit to a report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended,
and incorporated herein by reference.
+
Schedules and exhibits to this Exhibit have been omitted pursuant to Item 601(b)(2) of Regulation S-K. The Company agrees to furnish
supplementally a copy of any omitted schedule or exhibit to the SEC upon request.
†
A portion of this Exhibit has been omitted as it contains information that (i) is not material and (ii) would be competitively harmful
if publicly disclosed.
II-
5
(b)
Financial Statement Schedules
All
schedules have been omitted because either they are not required, are not applicable or the information is otherwise set forth in the
financial statements and related notes thereto.
Item
17. Undertakings
(a)
The
    undersigned registrant hereby undertakes:
(1)
To
    file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:
(i)
To
    include any prospectus required by section 10(a)(3) of the Securities Act of 1933;
(ii)
To
    reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent
    post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set
    forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if
    the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end
    of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b)
    if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set
    forth in the "Calculation of Registration Fee" table in the effective registration statement; and
(iii)
To
    include any material information with respect to the plan of distribution not previously disclosed in the registration statement
    or any material change to such information in the registration statement.
Provided
,
however
, that paragraphs (a)(1)(i), (ii) and (iii) above do not apply if the information required to be included in a post-effective
    amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to section
    13 or section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in this registration statement.
(2)
That,
    for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed
    to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall
    be deemed to be the initial bona fide offering thereof.
(3)
To
    remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the
    termination of the offering.
(4)
That,
    for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution
    of the securities: The undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant
    to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities
    are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller
    to the purchaser and will be considered to offer or sell such securities to such purchaser:
II-
6
(i)
Any
    preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule
    424;
(ii)
Any
    free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by
    the undersigned registrant;
(iii)
The
    portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant
    or its securities provided by or on behalf of the undersigned registrant; and
(iv)
Any
    other communication that is an offer in the offering made by the undersigned registrant to the purchaser.
(b)
The
    undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing
    of the registrant's annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable,
    each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that
    is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities
    offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(c)
Insofar
    as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling
    persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion
    of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore,
    unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of
    expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action,
    suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered,
    the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court
    of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and
    will be governed by the final adjudication of such issue.
(d)
The
    undersigned registrant hereby undertakes that:
(1)
For
    purposes of determining any liability under the Securities Act of 1933, the information omitted from the form of prospectus filed
    as part of this registration statement in reliance upon Rule 430A and contained in a form of prospectus filed by the registrant pursuant
    to Rule 424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be part of this registration statement as of the time
    it was declared effective; and
(2)
For
    the purpose of determining any liability under the Securities Act of 1933, each post-effective amendment that contains a form of
    prospectus shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such
    securities at that time shall be deemed to be the initial bona fide offering thereof.
II-
7
SIGNATURES
Pursuant
to the requirements of the Securities Act of 1933, the registrant has duly caused this registration statement to be signed on its behalf
by the undersigned, thereunto duly authorized, in Salt Lake City, Utah on July 8, 2022.
SINTX
    TECHNOLOGIES, INC.
By:
/s/
    B. Sonny Bal
B.
    Sonny Bal, M.D.
Chief
    Executive Officer and President
We,
the undersigned directors and officers of Sintx Technologies, Inc. (the "Company"), hereby severally constitute and appoint
B. Sonny Bal, MD as our true and lawful attorney, with full power to him to sign for us and in our names in the capacities indicated
below, the registration statement on Form S-1 filed herewith, and any and all pre-effective and post-effective amendments to said registration
statement, and any registration statement filed pursuant to Rule 462(b) under the Securities Act of 1933, as amended, in connection with
the registration under the Securities Act of 1933, as amended, of equity securities of the Company, and to file or cause to be filed
the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting
unto said attorney full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection
therewith, as fully to all intents and purposes as each of us might or could do in person, and hereby ratifying and confirming all that
said attorney or his substitute or substitutes, shall do or cause to be done by virtue of this Power of Attorney.
Pursuant
to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities
and on the dates indicated:
SIGNATURE
TITLE
DATE
/s/
    B. Sonny Bal
July
    8, 2022
B.
    Sonny Bal, M.D.
Chief
    Executive Officer and Director
(Principal
    Executive Officer and Principal Financial Officer)
/s/
    David W. Truetzel
July
    8, 2022
David
    W. Truetzel
Director
/s/
    Jeffrey S. White
July
    8, 2022
Jeffrey
    S. White
Director
/s/
    Eric. A Stookey
July
    8, 2022
Eric
    A. Stookey
Director
/s/
    Marc Froimson
July
8, 2022
Marc
    Froimson
Director
II-
8