-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 UY53DWmjlE0um3P91jqFEnHUscqV1PIHl3NhPvvth4Qxi1Kr28WljyN1cIzZgz4r
 PnSfcmlTBpnbssg03wqQIw==

<SEC-DOCUMENT>0000059255-10-000081.txt : 20100513
<SEC-HEADER>0000059255-10-000081.hdr.sgml : 20100513
<ACCEPTANCE-DATETIME>20100513170716
ACCESSION NUMBER:		0000059255-10-000081
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100513
ITEM INFORMATION:		Submission of Matters to a Vote of Security Holders
FILED AS OF DATE:		20100513
DATE AS OF CHANGE:		20100513

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KRONOS WORLDWIDE INC
		CENTRAL INDEX KEY:			0001257640
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INORGANIC CHEMICALS [2810]
		IRS NUMBER:				760294959
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		10829486

	BUSINESS ADDRESS:	
		STREET 1:		5430 LBJ FREEWAY
		STREET 2:		SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240
		BUSINESS PHONE:		9722331700

	MAIL ADDRESS:	
		STREET 1:		5430 LBJ FREEWAY
		STREET 2:		SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KRONOS INC
		DATE OF NAME CHANGE:	20030730
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>kro8k100513.htm
<DESCRIPTION>KRO-8K-100513
<TEXT>
<html>
<head>
    <title>kro8k100513.htm</title>
<!-- Licensed to: Contran-->
<!-- Document Created using EDGARizer 5.1.6.0 -->
<!-- Copyright 1995 - 2009 Thomson Reuters. All rights reserved. -->
</head>
<body bgcolor="#ffffff" style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<br>
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">UNITED STATES</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECURITIES AND EXCHANGE COMMISSION</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Washington, D.C.&#160;&#160;&#160;20549</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman">FORM 8-K</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">CURRENT REPORT</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Date of Report (Date of the earliest event reported)</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">May 13, 2010</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman; FONT-VARIANT: small-caps">Kronos Worldwide, Inc.</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Exact name of registrant as specified in its charter)</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<tr>
<td valign="top" width="27%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Delaware</font></div>
</td>
<td valign="top" width="27%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">1-31763</font></div>
</td>
<td colspan="2" valign="top" width="27%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">76-0294959</font></div>
</td>
</tr><tr>
<td valign="top" width="27%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(State or other jurisdiction of incorporation)</font></div>
</td>
<td valign="top" width="27%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Commission</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">File Number)</font></div>
</td>
<td colspan="2" valign="top" width="27%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(IRS Employer</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Identification No.)</font></div>
</td>
</tr><tr>
<td valign="top" width="27%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="27%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td colspan="2" valign="top" width="27%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="27%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="27%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td colspan="2" valign="top" width="27%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr><tr>
<td colspan="3" valign="top" width="53%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">5430 LBJ Freeway, Suite 1700, Dallas, Texas</font></div>
</td>
<td valign="top" width="26%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">75240-2697</font></div>
</td>
</tr><tr>
<td colspan="3" valign="top" width="53%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Address of principal executive offices)</font></div>
</td>
<td valign="top" width="26%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Zip Code)</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Registrant&#8217;s telephone number, including area code</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(972) 233-1700</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<tr>
<td valign="top" width="19%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="42%" style="BORDER-BOTTOM: black 2px solid"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="19%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="19%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="42%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Former name or former address, if changed since last report.)</font></div>
</td>
<td valign="top" width="19%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr></table>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">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):</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<tr>
<td valign="top" width="5%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt;" face="Wingdings">o</font></div>
</td>
<td valign="center" width="74%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></div>
</td>
</tr><tr>
<td valign="top" width="5%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="center" width="74%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="5%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt;" face="Wingdings">&#168;</font></div>
</td>
<td valign="center" width="74%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></div>
</td>
</tr><tr>
<td valign="top" width="5%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="center" width="74%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="5%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt;" face="Wingdings">&#168;</font></div>
</td>
<td valign="center" width="74%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></div>
</td>
</tr><tr>
<td valign="top" width="5%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="center" width="74%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="5%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt;" face="Wingdings">&#168;</font></div>
</td>
<td valign="center" width="74%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<br>
<div id="PGBRK" style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
<div id="FTR">
<div id="GLFTR" style="WIDTH: 100%" align="left"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>

<div id="PN" style="PAGE-BREAK-AFTER: always; WIDTH: 100%">
<div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>

<div style="WIDTH: 100%; TEXT-ALIGN: center">
<hr style="COLOR: black" noshade size="2">
</div>
</div>

<div id="HDR">
<div id="GLHDR" style="WIDTH: 100%" align="right"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>
</div>

<br>
<div>
<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<tr valign="top">
<td style="WIDTH: 72pt">
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 5.07</font></div>
</td>
<td>
<div align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Submission of Matters to a Vote of Security Holders.</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The registrant held its 2010 annual meeting of stockholders on May 13, 2010.&#160;&#160;At the meeting, the registrant&#8217;s stockholders elected Keith R. Coogan, Cecil H. Moore, Jr., George E. Poston, Glenn R. Simmons, Harold C. Simmons, R. Gerald Turner and Steven L. Watson as directors, each receiving votes &#8220;For&#8221; his election from at least 97.1% of the 48,970,549 shares of the registrant&#8217;s common stock eligible to vote at the meeting.&#160;&#160;Shareholders present at the meeting, either in person or by proxy, represented 97.7% of the total shares eligible to vote at the meeting.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<br>
<div id="PGBRK" style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
<div id="FTR">
<div id="GLFTR" style="WIDTH: 100%" align="left"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>

<div id="PN" style="PAGE-BREAK-AFTER: always; WIDTH: 100%">
<div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>

<div style="WIDTH: 100%; TEXT-ALIGN: center">
<hr style="COLOR: black" noshade size="2">
</div>
</div>

<div id="HDR">
<div id="GLHDR" style="WIDTH: 100%" align="right"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>
</div>

<br>
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SIGNATURE</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">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.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<tr>
<td valign="top" width="38%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="42%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; FONT-VARIANT: small-caps">KRONOS WORLDWIDE, INC.</font></div>
</td>
</tr><tr>
<td valign="top" width="38%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="42%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Registrant)</font></div>
</td>
</tr><tr>
<td valign="top" width="38%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="42%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="38%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="42%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="38%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="42%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="38%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="42%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="38%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160; </font></td>
<td valign="top" width="42%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">By:&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="DISPLAY: inline">/s/ A. Andrew R. Louis</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</font></div>
</td>
</tr><tr>
<td valign="top" width="38%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Date:&#160;&#160;May 13, 2010</font></div>
</td>
<td valign="top" width="42%">
<div style="DISPLAY: block; MARGIN-LEFT: 27pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-STYLE: italic; FONT-FAMILY: Times New Roman">A. Andrew R. Louis, Secretary</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<br>
</body>
</html>


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
