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    <div style="text-align: center; font-weight: bold;">UNITED STATES</div>
    <div style="text-align: center; font-weight: bold;">SECURITIES AND EXCHANGE COMMISSION</div>
    <div style="text-align: center; font-weight: bold;">Washington, D.C.&#160;&#160;&#160;20549</div>
    <div>&#160;</div>
    <div style="text-align: center; font-size: 12pt; font-weight: bold;">FORM 8-K</div>
    <div>&#160;&#160;</div>
    <div style="text-align: center; font-weight: bold;">CURRENT REPORT</div>
    <div style="text-align: center; font-weight: bold;">Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934</div>
    <div>&#160;</div>
    <div style="text-align: center;">Date of Report (Date of the earliest event reported)</div>
    <div style="text-align: center; font-weight: bold;">May 6, 2020</div>
    <div style="text-align: center; font-size: 18pt; font-variant: small-caps; font-weight: bold;">NL Industries, Inc.</div>
    <div style="text-align: center;">(Exact name of registrant as specified in its charter)</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z88bbbe85ac0c40f5a0f3e5ca28766e60">

        <tr>
          <td style="width: 33%; vertical-align: top; border-bottom: #000000 4px double;">
            <div style="text-align: center; font-weight: bold;">New Jersey</div>
          </td>
          <td style="width: 34%; vertical-align: top; border-bottom: #000000 4px double;">
            <div style="text-align: center; font-weight: bold;">1-640</div>
          </td>
          <td style="width: 33%; vertical-align: top; border-bottom: #000000 4px double;">
            <div style="text-align: center; font-weight: bold;">13-5267260</div>
          </td>
        </tr>
        <tr>
          <td style="width: 33%; vertical-align: top;">
            <div style="text-align: center;">(State or other jurisdiction</div>
            <div style="text-align: center;">of incorporation)</div>
          </td>
          <td style="width: 34%; vertical-align: top;">
            <div style="text-align: center;">(Commission</div>
            <div style="text-align: center;">File Number)</div>
          </td>
          <td style="width: 33%; vertical-align: top;">
            <div style="text-align: center;">(IRS Employer</div>
            <div style="text-align: center;">Identification No.)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 33%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 34%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 33%; vertical-align: top;">
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 33%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 34%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 33%; vertical-align: top;">
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
          <td colspan="2" style="width: 67%; vertical-align: top;">
            <div style="text-align: center; font-weight: bold;">5430 LBJ Freeway, Suite 1700, Dallas, Texas</div>
          </td>
          <td style="width: 33%; vertical-align: top;">
            <div style="text-align: center; font-weight: bold;">75240-2620</div>
          </td>
        </tr>
        <tr>
          <td colspan="2" style="width: 67%; vertical-align: top;">
            <div style="text-align: center;">(Address of principal executive offices)</div>
          </td>
          <td style="width: 33%; vertical-align: top;">
            <div style="text-align: center;">(Zip Code)</div>
          </td>
        </tr>

    </table>
    <div>&#160;</div>
    <div style="text-align: center;">Registrant&#8217;s telephone number, including area code</div>
    <div style="text-align: center; font-weight: bold;">(972) 233-1700</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z8a01188791ed49bda5688a0df719692f">

        <tr>
          <td style="width: 23.74%; vertical-align: top;">&#160;</td>
          <td style="width: 52.55%; vertical-align: top; border-bottom: #000000 2px solid;">&#160;</td>
          <td style="width: 23.72%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td colspan="3" style="width: 100%; vertical-align: top;">
            <div style="text-align: center;">(Former name or former address, if changed since last report.)</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="text-align: justify;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2):</div>
    <div>&#160;</div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z41b82610e74e44f3a3f75ec594ec158b">

        <tr>
          <td style="width: 6.32%; vertical-align: top;">
            <div style="text-align: center; font-size: 12pt;">&#9633;</div>
          </td>
          <td style="width: 93.68%; vertical-align: middle;">
            <div>Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 6.32%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 93.68%; vertical-align: middle;">
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 6.32%; vertical-align: top;">
            <div style="text-align: center; font-size: 12pt;">&#9723;</div>
          </td>
          <td style="width: 93.68%; vertical-align: middle;">
            <div>Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 6.32%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 93.68%; vertical-align: middle;">
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 6.32%; vertical-align: top;">
            <div style="text-align: center; font-size: 12pt;">&#9723;</div>
          </td>
          <td style="width: 93.68%; vertical-align: middle;">
            <div>Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</div>
          </td>
        </tr>
        <tr>
          <td style="width: 6.32%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 93.68%; vertical-align: middle;">
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 6.32%; vertical-align: top;">
            <div style="text-align: center; font-size: 12pt;">&#9723;</div>
          </td>
          <td style="width: 93.68%; vertical-align: middle;">
            <div>Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</div>
          </td>
        </tr>

    </table>
    <div style="margin-top: 9pt;">Securities registered pursuant to Section 12(b) of the Act:</div>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z7e03564cd1ef4211a70d3b390aaa0e33">

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          <td style="width: 38.01%; vertical-align: bottom; border-bottom: #000000 2px solid;">
            <div style="text-align: center; font-size: 8pt; font-weight: bold;">Title of each class</div>
          </td>
          <td style="width: 1%; vertical-align: bottom;">&#160;</td>
          <td style="width: 15%; vertical-align: bottom; border-bottom: #000000 2px solid;">
            <div style="text-align: center; font-size: 8pt; font-weight: bold;">Trading</div>
            <div style="text-align: center; font-size: 8pt; font-weight: bold;">Symbol(s)</div>
          </td>
          <td style="width: 1%; vertical-align: bottom;">&#160;</td>
          <td style="width: 45%; vertical-align: bottom; border-bottom: #000000 2px solid;">
            <div style="text-align: center; font-size: 8pt; font-weight: bold;">Name of each exchange on which registered</div>
          </td>
        </tr>
        <tr>
          <td style="width: 38.01%; vertical-align: top;">
            <div style="text-align: center; font-size: 8pt;">Common stock</div>
          </td>
          <td style="width: 1%; vertical-align: bottom;">&#160;</td>
          <td style="width: 15%; vertical-align: bottom;">
            <div style="text-align: center; font-size: 8pt;">NL</div>
          </td>
          <td style="width: 1%; vertical-align: bottom;">&#160;</td>
          <td style="width: 45%; vertical-align: bottom;">
            <div style="text-align: center; font-size: 8pt;">New York Stock Exchange</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="background-color: #FFFFFF;">
      <div>Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17&#160;CFR &#167;230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR &#167;240.12b-2).</div>
    </div>
    <div style="background-color: #FFFFFF;">
      <div style="text-align: right;">Emerging growth company&#160;&#160;&#9744;</div>
    </div>
    <div style="background-color: #FFFFFF;">
      <div><br>
      </div>
      <div style="margin-top: 6pt;">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&#160;13(a) of the Exchange Act.&#160;&#160;&#9744;</div>
    </div>
    <div><br>
    </div>
    <div style="text-align: right; font-size: 8pt;">&#160;</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div style="page-break-after:always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
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    </div>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="ze67eb8f56bde46d5bea4c707935b3452">

        <tr>
          <td style="width: 16.67%; vertical-align: top;">
            <div style="font-weight: bold;">Item 2.02</div>
          </td>
          <td style="width: 83.33%; vertical-align: top;">
            <div style="font-weight: bold;">Results of Operations and Financial Condition.</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="zae779073a7364dc8afaed6e6281cb815">

        <tr>
          <td style="width: 16.67%; vertical-align: top;">
            <div style="font-weight: bold;">Item 7.01</div>
          </td>
          <td style="width: 83.33%; vertical-align: top;">
            <div style="font-weight: bold;">Regulation FD Disclosure.</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="text-align: justify; text-indent: 36pt;">The registrant hereby furnishes the information set forth in its press release issued on May 6, 2020, a copy of which is attached hereto as Exhibit 99.1 and incorporated herein by reference.</div>
    <div><br>
    </div>
    <div style="text-align: justify; text-indent: 36pt;">The information, including the exhibit, the registrant furnishes in this report is not deemed &#8220;filed&#8221; for purposes of section 18 of the Securities Exchange Act of 1934, as amended, or otherwise
      subject to the liabilities of that section.&#160;&#160;Registration statements or other documents filed with the U.S. Securities and Exchange Commission shall not incorporate this information by reference, except as otherwise expressly stated in such filing.</div>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z0a54cd2e16d749689a6523f21687a23f">

        <tr>
          <td style="width: 16.67%; vertical-align: top;">
            <div style="font-weight: bold;">Item 9.01</div>
          </td>
          <td style="width: 83.33%; vertical-align: top;">
            <div style="font-weight: bold;">Financial Statements and Exhibits.</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z5fa27ec9bc74460181481f0d564f22b3">

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          <td style="width: 6.25%; vertical-align: top;">
            <div>(d)</div>
          </td>
          <td style="width: 19.99%; vertical-align: top;">
            <div>Exhibits</div>
          </td>
          <td style="width: 2.5%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 71.26%; vertical-align: top;">
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 6.25%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 19.99%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 2.5%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 71.26%; vertical-align: top;">
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 6.25%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 19.99%; vertical-align: top; border-bottom: #000000 4px double;">
            <div style="text-align: center; font-weight: bold;">Item No.</div>
          </td>
          <td style="width: 2.5%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 71.26%; vertical-align: top; border-bottom: #000000 4px double;">
            <div style="text-align: center; font-weight: bold;">Exhibit Index</div>
          </td>
        </tr>
        <tr>
          <td style="width: 6.25%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 19.99%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 2.5%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 71.26%; vertical-align: top;">
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 6.25%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 19.99%; vertical-align: top;">
            <div style="text-align: center;">99.1</div>
          </td>
          <td style="width: 2.5%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 71.26%; vertical-align: top;">
            <div><a href="exhibit991.htm">Press release dated May 6, 2020 issued by the registrant.</a></div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div style="font-size: 8pt;">&#160;</div>
    <div style="text-align: center; font-size: 8pt;">&#160;</div>
    <div><br>
    </div>
    <div style="text-align: center; font-weight: bold;">SIGNATURE</div>
    <div><br>
    </div>
    <div style="text-align: justify; text-indent: 36pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</div>
    <div><br>
    </div>
    <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;" id="z004491e1f1a142bf8c41a5153fbff355">

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          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 50%; vertical-align: top; border-bottom: 2px solid black;">
            <div style="text-align: center; font-variant: small-caps; font-weight: bold;">NL Industries, Inc.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div style="text-align: center;">(Registrant)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
        </tr>
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          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
        </tr>
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          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div>&#160;</div>
          </td>
          <td style="width: 50%; vertical-align: top; border-bottom: #000000 2px solid;">
            <div>By:/s/ Amy A. Samford</div>
          </td>
        </tr>
        <tr>
          <td style="width: 50%; vertical-align: top;">
            <div>Date:&#160;&#160;May 6, 2020</div>
          </td>
          <td style="width: 50%; vertical-align: top;">
            <div style="font-style: italic;">Amy A. Samford, Vice President and</div>
            <div style="font-style: italic;">&#160;&#160;Chief Financial Officer</div>
          </td>
        </tr>

    </table>
    <div><br>
    </div>
    <div>&#160;</div>
    <div><br>
      <font style="font-size: 12pt;"><br>
      </font><br>
    </div>
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.   20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934
Date of Report (Date of the earliest event reported)
May 6, 2020
NL Industries, Inc.
(Exact name of registrant as specified in its charter)
New Jersey
1-640
13-5267260
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)
5430 LBJ Freeway, Suite 1700, Dallas, Texas
75240-2620
(Address of principal executive offices)
(Zip Code)
Registrant's telephone number, including area code
(972) 233-1700
(Former name or former address, if changed since last report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2):
□
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
◻
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
◻
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
◻
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading
Symbol(s)
Name of each exchange on which registered
Common stock
NL
New York Stock Exchange
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).
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 13(a) of the Exchange Act.  ☐
Item 2.02
Results of Operations and Financial Condition.
Item 7.01
Regulation FD Disclosure.
The registrant hereby furnishes the information set forth in its press release issued on May 6, 2020, a copy of which is attached hereto as Exhibit 99.1 and incorporated herein by reference.
The information, including the exhibit, the registrant furnishes in this report is not deemed "filed" for purposes of section 18 of the Securities Exchange Act of 1934, as amended, or otherwise
      subject to the liabilities of that section.  Registration statements or other documents filed with the U.S. Securities and Exchange Commission shall not incorporate this information by reference, except as otherwise expressly stated in such filing.
Item 9.01
Financial Statements and Exhibits.
(d)
Exhibits
Item No.
Exhibit Index
99.1
Press release dated May 6, 2020 issued by the registrant.
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
NL Industries, Inc.
(Registrant)
By:/s/ Amy A. Samford
Date:  May 6, 2020
Amy A. Samford, Vice President and
Chief Financial Officer