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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">UNITED STATES</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">SECURITIES AND EXCHANGE COMMISSION</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">Washington, D.C.&#160;&#160; 20549</div>

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<div style="FONT-SIZE: 14pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center; MARGIN-TOP: 6pt">FORM 8-K</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">CURRENT REPORT</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">Date of Report (Date of the earliest event reported)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">May 17, 2017</div>

<div style="FONT-SIZE: 18pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-VARIANT: small-caps; FONT-WEIGHT: bold; TEXT-ALIGN: center; MARGIN-TOP: 18pt">Kronos Worldwide, Inc.</div>

<div style="MARGIN-BOTTOM: 18pt; FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Exact name of registrant as specified in its charter)</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">Delaware</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">1-31763</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">76-0294959</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(State or other jurisdiction of incorporation)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Commission</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">File Number)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(IRS Employer</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">Identification No.)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">5430 LBJ Freeway, Suite 1700, Dallas, Texas</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">75240-2697</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Address of principal executive offices)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center; MARGIN-TOP: 12pt">Registrant's telephone number, including area code</div>

<div style="MARGIN-BOTTOM: 12pt; FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">(972) 233-1700</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Former name or former address, if changed since last report.)</div>
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<div style="MARGIN-BOTTOM: 12pt; FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; MARGIN-TOP: 24pt">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>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</div>
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<td style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; WIDTH: 72pt; VERTICAL-ALIGN: top; FONT-WEIGHT: bold; align: right">Item 5.07</td>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold">Submission of Matters to a Vote of Security Holders.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">The registrant held its 2017 annual meeting of stockholders on May 17, 2017.&#160; At the 2017 annual meeting, the registrant's stockholders voted on the three proposals described in detail in the registrant's definitive proxy statement on Schedule 14A filed with the U.S. Securities and Exchange Commission on March 28, 2017.&#160; Stockholders present at the 2017 annual meeting, either in person or by proxy, represented 91.6% of the <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">115,894,098</font> shares eligible to vote at the meeting.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-VARIANT: small-caps; TEXT-ALIGN: justify">Proposal 1:&#160; Election of Director<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-STYLE: italic">s</font></div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">The registrant's stockholders elected Mr. Keith R. Coogan, Ms. Loretta J. Feehan, Mr. Robert D. Graham, Mr. John E. Harper, Mr. Cecil H. Moore, Jr., Gen. Thomas P. Stafford (ret.), Dr. R. Gerald Turner and Dr. C. Kern Wildenthal as directors.&#160; Each director nominee received votes "For" his or her election from at least 87.9% of the shares eligible to vote at the annual meeting.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-VARIANT: small-caps; TEXT-ALIGN: justify">Proposal 2:&#160; Say-on-Pay, Nonbinding Advisory Vote Approving Executive Compensation</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">The registrant's stockholders adopted a resolution, on a nonbinding advisory basis, approving <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; COLOR: #000000">the compensation of the registrant's named executive officers as described in the registrant's 2017 proxy statement.&#160; The resolution received the approval from 87.5% of the shares eligible to vote at the annual meeting.</font></div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-VARIANT: small-caps; TEXT-ALIGN: justify">Proposal 3:&#160; Say-When-on-Pay, Nonbinding Advisory Vote on the Preferred Frequency of Executive Compensation Votes</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">The registrant's stockholders voted, on a nonbinding advisory basis, on <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; COLOR: #000000">the preferred frequency of every year, every other year or every third year for future advisory votes on the named executive officer compensation as disclosed pursuant to the compensation disclosure rules of the U.S. Securities and Exchange Commission.&#160; An annual vote on such named executive officer compensation received the vote of 89.8</font>% of the shares eligible to vote at the annual meeting.&#160; <font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; COLOR: #000000">In light of the results of this nonbinding advisory vote, the registrant currently intends in the future to hold an annual nonbinding advisory vote on such named executive officer compensation</font>.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold">Regulation FD Disclosure.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">The registrant also hereby furnishes the information set forth in it press releases issued on May 17, 2017, a copy of which is attached as Exhibit 99.1 and incorporated herein by reference.&#160; The information the registrant furnishes in this report under this Item 7.01, and the exhibit in Item 9.01, 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.&#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>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold">Financial Statements and Exhibits.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Exhibits</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Press release dated May 17, 2017 issued by the registrant.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">SIGNATURE</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; 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>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-VARIANT: small-caps; FONT-WEIGHT: bold; TEXT-ALIGN: justify">KRONOS WORLDWIDE, INC.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">(Registrant)</div>
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<div style="TEXT-ALIGN: justify"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">By:</font><font id="TRGRRTFtoHTMLTab" style="FONT-SIZE: 1px; WIDTH: 26.1pt; DISPLAY: inline-block">&#160;</font><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif"><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">&#160;</font><font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">/s/ Clarence B. Brown, III</font></font></div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Date:&#160; May 17, 2017</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-STYLE: italic; TEXT-ALIGN: justify; MARGIN-LEFT: 26.1pt">Clarence B. Brown, III, General Counsel and Secretary</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">INDEX TO EXHIBITS</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Press release dated May 17, 2017 issued by the registrant.</div>
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{"company-data": {"conformed-name": "KRONOS WORLDWIDE INC", "cik": "0001257640", "assigned-sic": "2810", "irs-number": "760294959", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-31763", "film-number": "17851644"}, "business-address": {"street1": "5430 LBJ FREEWAY", "street2": "SUITE 1700", "city": "DALLAS", "state": "TX", "zip": "75240", "phone": "9722331700"}, "mail-address": {"street1": "5430 LBJ FREEWAY", "street2": "SUITE 1700", "city": "DALLAS", "state": "TX", "zip": "75240"}, "former-company": {"former-conformed-name": "KRONOS INC", "date-changed": "20030730"}}
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 17, 2017
Kronos Worldwide, Inc.
(Exact name of registrant as specified in its charter)
Delaware
1-31763
76-0294959
(State or other jurisdiction of incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)
5430 LBJ Freeway, Suite 1700, Dallas, Texas
75240-2697
(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))
Item 5.07
Submission of Matters to a Vote of Security Holders.
The registrant held its 2017 annual meeting of stockholders on May 17, 2017.  At the 2017 annual meeting, the registrant's stockholders voted on the three proposals described in detail in the registrant's definitive proxy statement on Schedule 14A filed with the U.S. Securities and Exchange Commission on March 28, 2017.  Stockholders present at the 2017 annual meeting, either in person or by proxy, represented 91.6% of the
115,894,098
shares eligible to vote at the meeting.
Proposal 1:  Election of Director
s
The registrant's stockholders elected Mr. Keith R. Coogan, Ms. Loretta J. Feehan, Mr. Robert D. Graham, Mr. John E. Harper, Mr. Cecil H. Moore, Jr., Gen. Thomas P. Stafford (ret.), Dr. R. Gerald Turner and Dr. C. Kern Wildenthal as directors.  Each director nominee received votes "For" his or her election from at least 87.9% of the shares eligible to vote at the annual meeting.
Proposal 2:  Say-on-Pay, Nonbinding Advisory Vote Approving Executive Compensation
The registrant's stockholders adopted a resolution, on a nonbinding advisory basis, approving
the compensation of the registrant's named executive officers as described in the registrant's 2017 proxy statement.  The resolution received the approval from 87.5% of the shares eligible to vote at the annual meeting.
Proposal 3:  Say-When-on-Pay, Nonbinding Advisory Vote on the Preferred Frequency of Executive Compensation Votes
The registrant's stockholders voted, on a nonbinding advisory basis, on
the preferred frequency of every year, every other year or every third year for future advisory votes on the named executive officer compensation as disclosed pursuant to the compensation disclosure rules of the U.S. Securities and Exchange Commission.  An annual vote on such named executive officer compensation received the vote of 89.8
% of the shares eligible to vote at the annual meeting.
In light of the results of this nonbinding advisory vote, the registrant currently intends in the future to hold an annual nonbinding advisory vote on such named executive officer compensation
.
Item 7.01
Regulation FD Disclosure.
The registrant also hereby furnishes the information set forth in it press releases issued on May 17, 2017, a copy of which is attached as Exhibit 99.1 and incorporated herein by reference.  The information the registrant furnishes in this report under this Item 7.01, and the exhibit in Item 9.01, 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 17, 2017 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.
KRONOS WORLDWIDE, INC.
(Registrant)
By:
/s/ Clarence B. Brown, III
Date:  May 17, 2017
Clarence B. Brown, III, General Counsel and Secretary
INDEX TO EXHIBITS
Item No.
Exhibit Index
99.1
Press release dated May 17, 2017 issued by the registrant.