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      <div style="text-align: center; font-size: 14pt; font-weight: bold;">UNITED STATES <font style="color: rgb(0, 0, 0);">SECURITIES AND EXCHANGE COMMISSION</font></div>
      <div style="text-align: center; color: rgb(0, 0, 0); font-size: 12pt; font-weight: bold;">Washington, D.C. 20549</div>
      <div>&#160;</div>
      <div style="text-align: center; color: rgb(0, 0, 0); font-size: 18pt; font-weight: bold;">FORM 8-K</div>
      <div>&#160;</div>
      <div style="text-align: center; color: rgb(0, 0, 0); font-weight: bold;">CURRENT REPORT</div>
      <div style="text-align: center; color: rgb(0, 0, 0); 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;"><font style="color: rgb(0, 0, 0);">Date of Report (Date of earliest event reported):</font>&#160;<font style="font-weight: bold; color: rgb(0, 0, 0);">January 13, 2020</font></div>
      <div>&#160;</div>
      <div style="text-align: center; color: rgb(0, 0, 0); font-size: 24pt; font-weight: bold;">ACM Research, Inc.</div>
      <div style="text-align: center; color: rgb(0, 0, 0); font-style: italic;">(Exact Name of Registrant as Specified in its Charter)</div>
      <div>&#160;</div>
      <table cellspacing="0" cellpadding="0" border="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;" id="z8afc625b742b44518ed4fcd18a06bfbf">

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            <td style="width: 32.62%; vertical-align: bottom;">
              <div style="text-align: center; color: rgb(0, 0, 0); font-weight: bold;">Delaware</div>
            </td>
            <td style="width: 33.66%; vertical-align: bottom;">
              <div style="text-align: center; color: rgb(0, 0, 0); font-weight: bold;">001-38273</div>
            </td>
            <td style="width: 33%; vertical-align: bottom;">
              <div style="text-align: center; color: rgb(0, 0, 0); font-weight: bold;">94-3290283</div>
            </td>
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            <td style="width: 32.62%; vertical-align: bottom;">
              <div style="text-align: center; color: rgb(0, 0, 0); font-style: italic;">(State or Other Jurisdiction of Incorporation)</div>
            </td>
            <td style="width: 33.66%; vertical-align: bottom;">
              <div style="text-align: center; color: rgb(0, 0, 0); font-style: italic;">(Commission File Number)</div>
            </td>
            <td style="width: 33%; vertical-align: bottom;">
              <div style="text-align: center; color: rgb(0, 0, 0); font-style: italic;">(IRS Employer Identification No.)</div>
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            <td style="width: 49%; vertical-align: bottom;">
              <div style="text-align: center; font-weight: bold;">42307 Osgood Road, Suite I</div>
              <div style="text-align: center; color: #000000; font-weight: bold;">Fremont, California</div>
            </td>
            <td style="width: 2%; vertical-align: bottom;">&#160;</td>
            <td style="width: 49%; vertical-align: bottom;">
              <div style="text-align: center;"> &#160;</div>
              <div style="text-align: center; color: #000000; font-weight: bold;">94539</div>
            </td>
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            <td style="width: 49%; vertical-align: bottom;">
              <div style="text-align: center; color: rgb(0, 0, 0); font-style: italic;">(Address of Principal Executive Offices)</div>
            </td>
            <td style="width: 2%; vertical-align: bottom;">&#160;</td>
            <td style="width: 49%; vertical-align: bottom;">
              <div style="text-align: center; color: rgb(0, 0, 0); font-style: italic;">(Zip Code)</div>
            </td>
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      <div>&#160;</div>
      <div style="text-align: center;"><font style="color: #000000;">Registrant&#8217;s telephone number, including area code:</font>&#160;<font style="font-weight: bold; color: rgb(0, 0, 0);">(510) 445-3700</font></div>
      <div>&#160;</div>
      <div style="text-align: center; color: #000000; font-weight: bold;">Not Applicable</div>
      <div style="text-align: center; color: rgb(0, 0, 0); font-style: italic;">(Former Name or Former Address, If Changed Since Last Report)</div>
      <div>&#160;</div>
      <div style="text-align: justify; color: #000000;">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:</div>
      <div>
        <div>
          <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z052ad10e6a104dfab37dfe06d7aa2ac3">

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                <td style="width: 27pt; vertical-align: top; color: rgb(0, 0, 0);">&#9744;</td>
                <td style="width: auto; vertical-align: top;">
                  <div style="color: rgb(0, 0, 0);">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</div>
                </td>
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      </div>
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                <td style="width: 27pt; vertical-align: top; color: rgb(0, 0, 0);">&#9744;</td>
                <td style="width: auto; vertical-align: top;">
                  <div style="color: rgb(0, 0, 0);">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</div>
                </td>
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                <td style="width: 27pt; vertical-align: top; color: rgb(0, 0, 0);">&#9744;</td>
                <td style="width: auto; vertical-align: top;">
                  <div style="color: rgb(0, 0, 0);">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</div>
                </td>
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                <td style="width: 27pt; vertical-align: top; color: rgb(0, 0, 0);">&#9744;</td>
                <td style="width: auto; vertical-align: top;">
                  <div style="color: rgb(0, 0, 0);">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</div>
                </td>
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        </div>
      </div>
      <div>&#160;</div>
      <div>Securities registered pursuant to Section 12(b) of the Act:</div>
      <div>&#160;</div>
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            <td style="width: 45%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0);">
              <div style="text-align: center; color: rgb(0, 0, 0); font-weight: bold;">Title of each class</div>
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            <td style="width: 3%; vertical-align: middle;">&#160;</td>
            <td style="width: 13%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0);">
              <div style="text-align: center; color: rgb(0, 0, 0); font-weight: bold;">Trading symbol</div>
            </td>
            <td style="width: 3%; vertical-align: middle;">&#160;</td>
            <td style="width: 36%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">
              <div style="text-align: center; color: rgb(0, 0, 0); font-weight: bold;">Name of each exchange on which registered</div>
            </td>
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            <td style="width: 45%; vertical-align: top;">
              <div style="color: rgb(0, 0, 0);">Class A Common Stock, par value $0.0001 per share</div>
            </td>
            <td style="width: 3%; vertical-align: middle;">&#160;</td>
            <td style="width: 13%; vertical-align: top;">
              <div style="text-align: center; color: rgb(0, 0, 0);">ACMR</div>
            </td>
            <td style="width: 3%; vertical-align: middle;">&#160;</td>
            <td style="width: 36%; vertical-align: top;">
              <div style="text-align: center; color: rgb(0, 0, 0);">Nasdaq Global Market</div>
            </td>
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      <div><font style="color: #000000;"> <br>
        </font></div>
      <div><font style="color: #000000;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934:</font><font style="color: #000000;">&#160;&#160;&#160;&#160;&#160;&#160; Emerging growth company&#160; </font>&#9745;</div>
      <div>&#160;</div>
      <div style="color: #000000;">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. &#9745;</div>
      <div style="color: #000000;"> <br>
      </div>
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                <td style="width: 54pt; vertical-align: top; font-weight: bold;">Item 2.02.</td>
                <td style="width: auto; vertical-align: top;">
                  <div style="font-weight: bold;">Results of Operations and Financial Condition.</div>
                </td>
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        </div>
      </div>
      <div>&#160;</div>
      <div style="text-indent: 18pt; color: #000000;">On January 13, 2020, we issued a press release announcing preliminary unaudited revenue for the full year 2019. The full text of the press release is furnished as Exhibit 99.01 hereto and is
        incorporated herein by reference.</div>
      <div>&#160;</div>
      <div style="text-indent: 18pt; color: #000000;">The information contained in this Item 2.02, including the exhibit furnished hereto, is intended to be furnished and shall not be deemed &#8220;filed&#8221; for purposes of Section 18 of the Securities Exchange Act
        of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as expressly set forth by specific
        reference in such filing.</div>
      <div>&#160;</div>
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                <td style="width: 54pt; vertical-align: top; font-weight: bold;">Item 9.01</td>
                <td style="width: auto; vertical-align: top;">
                  <div style="font-weight: bold;">Financial Statements and Exhibits.</div>
                </td>
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        </div>
      </div>
      <div>&#160;</div>
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                <td style="width: 18pt; vertical-align: top; font-weight: bold;">(d)</td>
                <td style="width: auto; vertical-align: top; text-align: justify;">
                  <div style="font-weight: bold;">Exhibits.</div>
                </td>
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        </div>
      </div>
      <div>&#160;</div>
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              <div style="text-align: center; font-weight: bold;">Exhibit</div>
            </td>
            <td style="width: 3%; vertical-align: bottom;">&#160;</td>
            <td style="width: 89%; vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0);">
              <div style="text-align: center; font-weight: bold;">Description</div>
            </td>
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            <td rowspan="1" style="width: 7.69%; vertical-align: top;">&#160;</td>
            <td rowspan="1" style="width: 3%; vertical-align: top;">&#160;</td>
            <td rowspan="1" style="width: 89%; vertical-align: top;">&#160;</td>
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            <td style="width: 7.69%; vertical-align: top;">
              <div style="text-align: center;"><a href="ex99_01.htm">99.01</a></div>
            </td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 89%; vertical-align: top;">
              <div style="text-align: justify; color: rgb(0, 0, 0);"><font style="background-color: #FFFFFF;">Press release of ACM Research, Inc. dated January 13, 2020</font></div>
            </td>
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      <div style="text-align: center; font-weight: bold;">SIGNATURE</div>
      <div>&#160;</div>
      <div style="text-align: justify; text-indent: 18pt;">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>&#160;</div>
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            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td colspan="2" style="vertical-align: top;">
              <div>ACM RESEARCH, INC.</div>
            </td>
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            <td rowspan="1" style="width: 50%; vertical-align: top;">&#160;</td>
            <td rowspan="1" colspan="2" style="vertical-align: top;">&#160;</td>
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            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">
              <div>By:</div>
            </td>
            <td style="width: 47%; vertical-align: top; border-bottom: 2px solid black;">
              <div>/s/ Mark McKechnie</div>
            </td>
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            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 47%; vertical-align: top;">
              <div>Mark McKechnie</div>
            </td>
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            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 47%; vertical-align: top;">
              <div style="color: rgb(0, 0, 0);">Chief Financial Officer and Treasurer</div>
            </td>
          </tr>
          <tr>
            <td rowspan="1" style="width: 50%; vertical-align: top;">&#160;</td>
            <td rowspan="1" style="width: 3%; vertical-align: top;">&#160;</td>
            <td rowspan="1" style="width: 47%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50%; vertical-align: top;">
              <div>Dated: January 13, 2020</div>
            </td>
            <td style="width: 3%; vertical-align: top;">&#160;</td>
            <td style="width: 47%; vertical-align: top;">&#160;</td>
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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 earliest event reported):
January 13, 2020
ACM Research, Inc.
(Exact Name of Registrant as Specified in its Charter)
Delaware
001-38273
94-3290283
(State or Other Jurisdiction of Incorporation)
(Commission File Number)
(IRS Employer Identification No.)
42307 Osgood Road, Suite I
Fremont, California
94539
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number, including area code:
(510) 445-3700
Not Applicable
(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:
☐
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
Name of each exchange on which registered
Class A Common Stock, par value $0.0001 per share
ACMR
Nasdaq Global Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934:
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.
On January 13, 2020, we issued a press release announcing preliminary unaudited revenue for the full year 2019. The full text of the press release is furnished as Exhibit 99.01 hereto and is
        incorporated herein by reference.
The information contained in this Item 2.02, including the exhibit furnished hereto, is intended to be furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act
        of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as expressly set forth by specific
        reference in such filing.
Item 9.01
Financial Statements and Exhibits.
(d)
Exhibits.
Exhibit
Description
99.01
Press release of ACM Research, Inc. dated January 13, 2020
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.
ACM RESEARCH, INC.
By:
/s/ Mark McKechnie
Mark McKechnie
Chief Financial Officer and Treasurer
Dated: January 13, 2020