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  <div style="text-align: center;">&#160;&#160;<font style="font-weight: bold;">UNITED STATES</font></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; 20549</div>
  <div style="text-align: center; margin-top: 18pt; margin-bottom: 12pt; font-size: 14pt; font-weight: bold;">FORM 8-K</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><br>
  </div>
  <div style="text-align: center;">Date of Report (Date of earliest event reported)</div>
  <div style="text-align: center; font-weight: bold;">April 22, 2020</div>
  <div style="text-align: center; margin-top: 18pt; font-size: 18pt; font-variant: small-caps; font-weight: bold;">NL Industries, Inc.</div>
  <div style="text-align: center; margin-bottom: 18pt;">(Exact name of registrant as specified in its charter)</div>
  <table cellspacing="0" cellpadding="0" id="z0e944cad7b4747cc941080bf67fc1461" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

      <tr>
        <td style="width: 33.33%; vertical-align: top;">
          <div style="text-align: center; font-weight: bold;">New Jersey</div>
        </td>
        <td style="width: 33.33%; vertical-align: top;">
          <div style="text-align: center; font-weight: bold;">1-640</div>
        </td>
        <td style="width: 33.33%; vertical-align: top;" colspan="2">
          <div style="text-align: center; font-weight: bold;">13-5267260</div>
        </td>
      </tr>
      <tr>
        <td style="width: 33.33%; vertical-align: top;">
          <div style="text-align: center;">(State or other jurisdiction of incorporation)</div>
        </td>
        <td style="width: 33.33%; vertical-align: top;">
          <div style="text-align: center;">(Commission</div>
          <div style="text-align: center;">File Number)</div>
        </td>
        <td style="width: 33.33%; vertical-align: top;" colspan="2">
          <div style="text-align: center;">(IRS Employer</div>
          <div style="text-align: center;">Identification No.)</div>
        </td>
      </tr>
      <tr>
        <td style="width: 33.33%; vertical-align: top;">&#160;</td>
        <td style="width: 33.33%; vertical-align: top;">&#160;</td>
        <td style="width: 33.33%; vertical-align: top;" colspan="2">&#160;</td>
      </tr>
      <tr>
        <td style="width: 33.33%; vertical-align: top;">&#160;</td>
        <td style="width: 33.33%; vertical-align: top;">&#160;</td>
        <td style="width: 33.33%; vertical-align: top;" colspan="2">&#160;</td>
      </tr>
      <tr>
        <td style="width: 66.92%; vertical-align: top;" colspan="3">
          <div style="text-align: center; font-weight: bold;">5430 LBJ Freeway, Suite 1700, Dallas, Texas</div>
        </td>
        <td style="width: 33.08%; vertical-align: top;">
          <div style="text-align: center; font-weight: bold;">75240-2620</div>
        </td>
      </tr>
      <tr>
        <td style="width: 66.92%; vertical-align: top;" colspan="3">
          <div style="text-align: center;">(Address of principal executive offices)</div>
        </td>
        <td style="width: 33.08%; vertical-align: top;">
          <div style="text-align: center;">(Zip Code)</div>
        </td>
      </tr>

  </table>
  <div style="text-align: center; margin-top: 12pt;">Registrant&#8217;s telephone number, including area code</div>
  <div style="text-align: center; margin-bottom: 12pt; font-weight: bold;">(972) 233-1700</div>
  <table cellspacing="0" cellpadding="0" id="zf6f5b4a3114848fc98a01d0580b1d60c" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

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        <td style="width: 23.68%; vertical-align: top;">&#160;</td>
        <td style="width: 52.63%; vertical-align: top; border-bottom: #000000 2px solid;">&#160;</td>
        <td style="width: 23.68%; vertical-align: top;">&#160;</td>
      </tr>
      <tr>
        <td style="width: 23.68%; vertical-align: top;">&#160;</td>
        <td style="width: 52.63%; vertical-align: top;">
          <div style="text-align: center;">(Former name or former address, if changed since last report.)</div>
        </td>
        <td style="width: 23.68%; vertical-align: top;">&#160;</td>
      </tr>

  </table>
  <div style="margin-top: 18pt; margin-bottom: 12pt;">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>
  <table cellspacing="0" cellpadding="0" id="z629cc7ac7b3e4bfd957edc219e701987" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

      <tr>
        <td style="width: 6.77%; vertical-align: top;">
          <div style="text-align: center; font-size: 14pt;">&#9633;</div>
        </td>
        <td style="width: 93.23%; 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: 6.77%; vertical-align: top;">&#160;</td>
        <td style="width: 93.23%; vertical-align: middle;">&#160;</td>
      </tr>
      <tr>
        <td style="width: 6.77%; vertical-align: top;">
          <div style="text-align: center; font-size: 14pt;">&#9723;</div>
        </td>
        <td style="width: 93.23%; 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: 6.77%; vertical-align: top;">&#160;</td>
        <td style="width: 93.23%; vertical-align: middle;">&#160;</td>
      </tr>
      <tr>
        <td style="width: 6.77%; vertical-align: top;">
          <div style="text-align: center; font-size: 14pt;">&#9723;</div>
        </td>
        <td style="width: 93.23%; 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: 6.77%; vertical-align: top;">&#160;</td>
        <td style="width: 93.23%; vertical-align: middle;">&#160;</td>
      </tr>
      <tr>
        <td style="width: 6.77%; vertical-align: top;">
          <div style="text-align: center; font-size: 14pt;">&#9723;</div>
        </td>
        <td style="width: 93.23%; 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: 12pt;">Securities registered pursuant to Section 12(b) of the Act:</div>
  <div><br>
  </div>
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        <td style="width: 38%; 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%; 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 style="background-color: #FFFFFF;">
    <div><br>
    </div>
    <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><br>
    </div>
    <div style="text-align: right; margin-top: 6pt;">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>
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  <div><font style="font-weight: bold;">Item 5.01</font><font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 72pt">&#160;</font><font style="font-weight: bold;">Changes in Control of Registrant.</font></div>
  <div><br>
  </div>
  <div style="text-indent: 36pt;">The disclosure set forth in Amendment No. 74 to Schedule 13D regarding the registrant&#8217;s common stock and filed by Valhi, Inc., Dixie Rice
    Agricultural L.L.C., Contran Corporation, Lisa K. Simmons and the Harold C. Simmons Family Trust No. 2 with the U.S. Securities and Exchange Commission on April 28, 2020 reporting a change in control of the registrant on April 22, 2020 is incorporated
    herein by reference.</div>
  <div><br>
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  <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
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  <div style="text-align: center; text-indent: 36pt; font-weight: bold;">SIGNATURE</div>
  <div><br>
  </div>
  <div><br>
  </div>
  <div style="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" id="z3f801d947cf04d199802e582539c9f03" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

      <tr>
        <td style="width: 47.76%; vertical-align: top;">&#160;</td>
        <td style="width: 52.24%; vertical-align: top;">
          <div style="font-variant: small-caps; font-weight: bold;">NL INDUSTRIES, INC.</div>
        </td>
      </tr>
      <tr>
        <td style="width: 47.76%; vertical-align: top;">&#160;</td>
        <td style="width: 52.24%; vertical-align: top;">
          <div>(Registrant)</div>
        </td>
      </tr>
      <tr>
        <td style="width: 47.76%; vertical-align: top;">&#160;</td>
        <td style="width: 52.24%; vertical-align: top;">&#160;</td>
      </tr>
      <tr>
        <td style="width: 47.76%; vertical-align: top;">&#160;</td>
        <td style="width: 52.24%; vertical-align: top;">&#160;</td>
      </tr>
      <tr>
        <td style="width: 47.76%; vertical-align: top;">&#160;</td>
        <td style="width: 52.24%; vertical-align: top;">&#160;</td>
      </tr>
      <tr>
        <td style="width: 47.76%; vertical-align: top;">&#160;</td>
        <td style="width: 52.24%; vertical-align: top; border-bottom: 2px solid black;">
          <div>By:<font id="TRGRRTFtoHTMLTab" style="display: inline-block; text-indent: 0px; font-size: 1px; width: 26.1pt">&#160;</font>/s/ Clarence B. Brown, III</div>
        </td>
      </tr>
      <tr>
        <td style="width: 47.76%; vertical-align: top;">
          <div>Date:&#160; April 28, 2020</div>
        </td>
        <td style="width: 52.24%; vertical-align: top;">
          <div style="margin-left: 26.1pt; font-style: italic;">Clarence B. Brown, III,</div>
          <div style="text-indent: 36pt; font-style: italic;">Vice President and Secretary</div>
        </td>
      </tr>

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{"company-data": {"conformed-name": "NL INDUSTRIES INC", "cik": "0000072162", "assigned-sic": "2810", "irs-number": "135267260", "state-of-incorporation": "NJ", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-00640", "film-number": "20826116"}, "business-address": {"street1": "5430 LBJ FREEWAY", "street2": "SUITE 1700", "city": "DALLAS", "state": "TX", "zip": "75240-2620", "phone": "972-233-1700"}, "mail-address": {"street1": "5430 LBJ FREEWAY", "street2": "SUITE 1700", "city": "DALLAS", "state": "TX", "zip": "75240-2620"}, "former-company": {"former-conformed-name": "NATIONAL LEAD CO", "date-changed": "19710520"}}
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)
April 22, 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 5.01
Changes in Control of Registrant.
The disclosure set forth in Amendment No. 74 to Schedule 13D regarding the registrant's common stock and filed by Valhi, Inc., Dixie Rice
    Agricultural L.L.C., Contran Corporation, Lisa K. Simmons and the Harold C. Simmons Family Trust No. 2 with the U.S. Securities and Exchange Commission on April 28, 2020 reporting a change in control of the registrant on April 22, 2020 is incorporated
    herein by reference.
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/ Clarence B. Brown, III
Date:  April 28, 2020
Clarence B. Brown, III,
Vice President and Secretary