-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001257640-05-000023.txt : 20050412
<SEC-HEADER>0001257640-05-000023.hdr.sgml : 20050412
<ACCEPTANCE-DATETIME>20050412192202
ACCESSION NUMBER:		0001257640-05-000023
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20050408
FILED AS OF DATE:		20050412
DATE AS OF CHANGE:		20050412

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SIMMONS HAROLD C
		CENTRAL INDEX KEY:			0001037854
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		05747155

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		9722331700

	MAIL ADDRESS:	
		STREET 1:		THREE LINCOLN CENTRE
		STREET 2:		5430 LBJ FREEWAY STE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240-2697

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TITANIUM METALS CORP
		CENTRAL INDEX KEY:			0001011657
		STANDARD INDUSTRIAL CLASSIFICATION:	SECONDARY SMELTING & REFINING OF NONFERROUS METALS [3341]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		05747159

	BUSINESS ADDRESS:	
		STREET 1:		1999 BROADWAY
		STREET 2:		STE 4300
		CITY:			DENVER
		STATE:			CO
		ZIP:			80202
		BUSINESS PHONE:		3032965600

	MAIL ADDRESS:	
		STREET 1:		TITANIUM METALS CORP
		STREET 2:		1999 BROADWAY SUITE 4300
		CITY:			DENVER
		STATE:			CO
		ZIP:			80202

ISSUER:		

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

	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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CONTRAN CORP
		CENTRAL INDEX KEY:			0000024240
		STANDARD INDUSTRIAL CLASSIFICATION:	PERSONAL CREDIT INSTITUTIONS [6141]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		05747163

	BUSINESS ADDRESS:	
		STREET 1:		5430 LBJ FRWY
		STREET 2:		SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240
		BUSINESS PHONE:		9724504228

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			VALHI INC /DE/
		CENTRAL INDEX KEY:			0000059255
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INORGANIC CHEMICALS [2810]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		05747162

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

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

	FORMER NAME:	
		FORMER CONFORMED NAME:	LLC CORP
		DATE OF NAME CHANGE:	19870329

	FORMER NAME:	
		FORMER CONFORMED NAME:	LIBERTY LOAN CORP
		DATE OF NAME CHANGE:	19800414

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NL INDUSTRIES INC
		CENTRAL INDEX KEY:			0000072162
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INORGANIC CHEMICALS [2810]
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		05747157

	BUSINESS ADDRESS:	
		STREET 1:		5430 LBJ FREEWAY
		STREET 2:		SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240-2697
		BUSINESS PHONE:		972-233-1700

	MAIL ADDRESS:	
		STREET 1:		5430 LBJ FREEWAY
		STREET 2:		SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240-2697

	FORMER NAME:	
		FORMER CONFORMED NAME:	NATIONAL LEAD CO
		DATE OF NAME CHANGE:	19710520

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DIXIE RICE AGRICULTURE CORP INC
		CENTRAL INDEX KEY:			0001074787

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		05747164

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

	MAIL ADDRESS:	
		STREET 1:		600 PASQUIERE ST
		CITY:			GUEYDAN
		STATE:			LA
		ZIP:			70542

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SOUTHWEST LOUISIANA LAND CO INC
		CENTRAL INDEX KEY:			0001074790

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		05747160

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

	MAIL ADDRESS:	
		STREET 1:		402 CANAL ST
		CITY:			HOUMA
		STATE:			LA
		ZIP:			70360

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NATIONAL CITY LINES INC
		CENTRAL INDEX KEY:			0000069972
		STANDARD INDUSTRIAL CLASSIFICATION:	LAND SUBDIVIDERS & DEVELOPERS (NO CEMETERIES) [6552]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		05747161

	BUSINESS ADDRESS:	
		STREET 1:		5430 LBJ FREEWAY
		STREET 2:		SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240
		BUSINESS PHONE:		2149340233

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TIMET FINANCE MANAGEMENT CO
		CENTRAL INDEX KEY:			0001074791

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		05747156

	BUSINESS ADDRESS:	
		STREET 1:		913 N MARKET ST
		STREET 2:		SUITE 217
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19801
		BUSINESS PHONE:		9722331700

	MAIL ADDRESS:	
		STREET 1:		913 N MARKET ST
		STREET 2:		SUITE 217
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19801

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			VALHI GROUP INC
		CENTRAL INDEX KEY:			0001074793

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		05747158

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>f4kro50408_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-04-08</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001257640</issuerCik>
        <issuerName>KRONOS WORLDWIDE INC</issuerName>
        <issuerTradingSymbol>KRO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000024240</rptOwnerCik>
            <rptOwnerName>CONTRAN CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5430 LBJ FRWY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1700</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000059255</rptOwnerCik>
            <rptOwnerName>VALHI INC /DE/</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5430 LBJ FRWY</rptOwnerStreet1>
            <rptOwnerStreet2>STE 1700</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000069972</rptOwnerCik>
            <rptOwnerName>NATIONAL CITY LINES INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5430 LBJ FREEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1700</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001074787</rptOwnerCik>
            <rptOwnerName>DIXIE RICE AGRICULTURE CORP INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5430 LBJ FREEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1700</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001074790</rptOwnerCik>
            <rptOwnerName>SOUTHWEST LOUISIANA LAND CO INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5430 LBJ FREEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1700</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001011657</rptOwnerCik>
            <rptOwnerName>TITANIUM METALS CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1999 BROADWAY</rptOwnerStreet1>
            <rptOwnerStreet2>STE 4300</rptOwnerStreet2>
            <rptOwnerCity>DENVER</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001074793</rptOwnerCik>
            <rptOwnerName>VALHI GROUP INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5430 LBJ FREEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1700</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000072162</rptOwnerCik>
            <rptOwnerName>NL INDUSTRIES INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5430 LBJ FREEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1700</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240-2697</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001074791</rptOwnerCik>
            <rptOwnerName>TIMET FINANCE MANAGEMENT CO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>913 N MARKET ST</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 217</rptOwnerStreet2>
            <rptOwnerCity>WILMINGTON</rptOwnerCity>
            <rptOwnerState>DE</rptOwnerState>
            <rptOwnerZipCode>19801</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001037854</rptOwnerCik>
            <rptOwnerName>SIMMONS HAROLD C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5430 LBJ FREDEWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1700</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman of the Board &amp; CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock $0.01 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2005-04-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>43.03</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>17516132</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by NL</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock $0.01 par value</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>27840953</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by Valhi</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock $0.01 par value</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5203</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by TFMC</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Open market sale by NL Industries, Inc.  See the Additional Information filed as Exhibit 99 to this statement for a
 description of the relationships among the persons joining in this filing.</footnote>
        <footnote id="F2">Directly held by NL Industries, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description
 of the relationships among the persons joining in this filing.</footnote>
        <footnote id="F3">Directly held by Valhi, Inc.  See the Additional Information filed as Exhibit 99 to this statement for a description of the
 relationships among the persons joining in this filing.</footnote>
        <footnote id="F4">Directly held by TIMET Finance Management Company.  See the Additional Information filed as Exhibit 99 to this statement for
 a description of the relationships among the persons joining in this filing.</footnote>
    </footnotes>

    <remarks>Mr. Harold C. Simmons and his spouse directly hold 4,255 and 36,356 shares, respectively, of the common stock of the issuer.
 Mr. Simmons disclaims beneficial ownership of the shares of the issuer's common stock that his spouse owns.

This form is also filed on behalf of Dixie Holding Company, 5430 LBJ Freeway, Suite 1700, Dallas, TX 75240 By:  /s/ A. Andrew
 R. Louis, Secretary (executed 04/12/2005), NOA, Inc., 5430 LBJ Freeway, Suite 1700, Dallas, TX 75240 By:  /s/ A. Andrew R.
 Louis, Secretary (executed 04/12/2005) and Tremont LLC, 5430 LBJ Freeway, Suite 1700, Dallas, TX 75240 By:  /s/ A. Andrew R.
 Louis, Secretary (executed 04/12/2005).

See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships among the persons
 joining in this filing.</remarks>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Secretary, for Contran Corporation</signatureName>
        <signatureDate>2005-04-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Secretary, for Valhi, Inc.</signatureName>
        <signatureDate>2005-04-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Assistant Secretary, for NL Industries Inc.</signatureName>
        <signatureDate>2005-04-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Secretary, for Valhi Group, Inc.</signatureName>
        <signatureDate>2005-04-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Secretary, for National City Lines, Inc.</signatureName>
        <signatureDate>2005-04-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Assistant Secretary, for Titanium Metals Corporation</signatureName>
        <signatureDate>2005-04-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Secretary, for Dixie Rice Agricultural Corporation, Inc.</signatureName>
        <signatureDate>2005-04-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Secretary, for Southwest Louisiana Land Company, Inc.</signatureName>
        <signatureDate>2005-04-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Attorney-in-fact, for Harold C. Simmons</signatureName>
        <signatureDate>2005-04-12</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Gregory M. Swalwell, Vice President, for TIMET Finance Management Company</signatureName>
        <signatureDate>2012-04-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>kro50408.htm
<DESCRIPTION>ADDITIONAL INFORMATION
<TEXT>
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<TITLE>Additional Information</TITLE>
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     <!-- Control Number: jgc41215                                                         -->
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<P>Exhibit 99 Additional Information</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  Valhi, Inc. ("Valhi")
     and NL  Industries,  Inc.  ("NL")  are the  holders  of  56.9%  and  35.8%,
respectively,  of the  outstanding  shares of common stock,  par value $0.01 per
share ("Common Stock"), of the issuer.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Valhi  and TIMET Finance
Management  Company ("TFMC") are the direct holders of  approximately  83.1% and
0.5%,  respectively,  of the outstanding  common stock of NL. Valhi Group,  Inc.
("VGI"),   National  City  Lines,   Inc.   ("National"),   Contran   Corporation
("Contran"), the Harold Simmons Foundation, Inc. (the "Foundation"), the Contran
Deferred  Compensation  Trust No. 2 (the "CDCT No. 2") and The  Combined  Master
Retirement  Trust (the "CMRT") are the direct  holders of  approximately  78.9%,
9.3%,  2.1%,  0.9%, 0.4% and 0.1%,  respectively,  of the outstanding  shares of
Valhi common  stock.  National,  NOA,  Inc.  ("NOA") and Dixie  Holding  Company
("Dixie  Holding")  are the direct  holders of  approximately  73.3%,  11.4% and
15.3%, respectively, of the outstanding common stock of VGI. Contran and NOA are
the  direct  holders of  approximately  85.7% and  14.3%,  respectively,  of the
outstanding  common  stock of National.  Contran and  Southwest  Louisiana  Land
Company,  Inc.  ("Southwest") are the direct holders of approximately  49.9% and
50.1%,  respectively,  of the  outstanding  common  stock  of  NOA.  Dixie  Rice
Agricultural  Corporation,  Inc.  ("Dixie Rice") is the direct holder of 100% of
the outstanding common stock of Dixie Holding.  Contran is the holder of 100% of
the  outstanding  common  stock of Dixie  Rice  and  approximately  88.9% of the
outstanding common stock of Southwest.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Substantially   all   of
Contran's outstanding voting stock is held by trusts established for the benefit
of certain children and  grandchildren  of Harold C. Simmons (the "Trusts"),  of
which Mr.  Simmons is the sole trustee,  or is held by Mr. Simmons or persons or
entities related to Mr. Simmons.  As sole trustee of the Trusts, Mr. Simmons has
the power to vote and direct the disposition of the shares of Contran stock held
by the Trusts. Mr. Simmons disclaims  beneficial ownership of all Contran shares
that the Trusts hold.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Harold C. Simmons is the
chairman of the board and chief  executive  officer of each of the issuer and NL
and the  chairman  of the  board of each of Valhi,  VGI,  National,  NOA,  Dixie
Holding, Dixie Rice, Southwest and Contran.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The  Foundation directly
holds  approximately  0.9% of the outstanding  shares of Valhi common stock. The
Foundation is a tax-exempt foundation organized for charitable purposes.  Harold
C. Simmons is the chairman of the board of the Foundation.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The  CDCT No. 2 directly
holds  approximately  0.4% of the outstanding shares of Valhi common stock. U.S.
Bank  National  Association  serves as the  trustee  of the CDCT No. 2.  Contran
established the CDCT No. 2 as an irrevocable  "rabbi trust" to assist Contran in
meeting  certain  deferred  compensation  obligations  that it owes to Harold C.
Simmons.  If the CDCT No. 2 assets are insufficient to satisfy such obligations,
Contran is  obligated  to satisfy the balance of such  obligations  as they come
due.  Pursuant to the terms of the CDCT No. 2,  Contran (i) retains the power to
vote the  shares of Valhi  common  stock held  directly  by the CDCT No. 2, (ii)
retains  dispositive power over such shares and (iii) may be deemed the indirect
beneficial owner of such shares.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The  CMRT directly holds
approximately  0.1% of the  outstanding  shares  of Valhi  common  stock.  Valhi
established  the CMRT to permit the collective  investment by master trusts that
maintain  the  assets of  certain  employee  benefit  plans  Valhi  and  related
companies adopt.  Harold C. Simmons is the sole trustee of the CMRT and a member
of the trust  investment  committee  for the CMRT.  Valhi's  board of  directors
selects the trustee and members of the trust investment  committee for the CMRT.
Mr. Simmons is a participant  in one or more of the employee  benefit plans that
invest through the CMRT.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;By virtue of the holding
     of the offices,  the stock  ownership  and his services as trustee,  all as
described  above,  (a) Harold C. Simmons may be deemed to control such  entities
and (b) Mr.  Simmons  and  certain  of such  entities  may be deemed to  possess
indirect  beneficial  ownership of shares directly held by certain of such other
entities. However, Mr. Simmons disclaims such beneficial ownership of the shares
beneficially owned directly or indirectly by any of such entities, except to the
extent of his vested beneficial interest, if any, in shares held by the CMRT and
his interest as a beneficiary  of the CDCT No. 2. Mr. Harold  Simmons  disclaims
beneficial  ownership  of all  shares of Common  Stock  that  Valhi,  NL or TFMC
directly holds.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;TFMC  owns 5,203  shares
of  Common  Stock.  Titanium  Metals  Corporation  ("TIMET")  owns  100%  of the
outstanding  common stock of TFMC.  Tremont LLC ("Tremont"),  Harold C. Simmons'
spouse, the CMRT and Valhi are the holders of approximately  39.5%, 14.3%, 12.0%
and 3.9% of the outstanding common stock of TIMET. Valhi is the direct holder of
100% of the  membership  interests of Tremont.  The ownership of Ms.  Simmons is
based on the  1,600,000  shares  of  TIMET&#146;s  6 3/4%  Series A  Convertible
Preferred  Stock,  par value $0.01 per share (the "Series A Preferrred  Stock"),
that  she  directly  owns,  which  are  convertible  into  2,666,666  shares  of
TIMET&#146;s  common  stock.  The ownership of Valhi  includes  24,500 shares of
TIMET&#146;s common stock that Valhi has the right to acquire upon conversion of
14,700  shares of Series A  Preferred  Stock  that  Valhi  directly  holds.  The
percentage  ownership of TIMET&#146;s common stock held by Ms. Simmons and Valhi
assumes the full conversion of only the shares of Series A Preferred Stock owned
by her or Valhi,  respectively.  Harold C.  Simmons is vice  chairman  of of the
board of TIMET and chairman of the board of Tremont.
</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Harold    C.    Simmons'
spouse is the direct owner of 36,356 shares of Common Stock, 69,475 shares of NL
common stock, 43,400 shares of Valhi common stock and 1,600,000 shares of Series
A Preferred  Stock,  which are convertible  into&nbsp;2,666,666  shares of TIMET
common stock. Mr. Simmons may be deemed to share indirect  beneficial  ownership
of such shares. Mr. Simmons disclaims all such beneficial ownership.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Harold     C.    Simmons
directly  holds 4,255 shares of Common  Stock,  30,800 shares of NL common stock
(including stock options exercisable for 4,000 shares) and 3,383 shares of Valhi
common stock.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A trust, of which Harold
C.  Simmons  and  his  spouse  are  trustees  and  the   beneficiaries  are  the
grandchildren  of his  spouse,  is the direct  holder of 40,000  shares of Valhi
common stock.  Mr. Simmons,  as co-trustee of this trust,  has the power to vote
and direct the  disposition of the shares of Valhi common stock the trust holds.
Mr. Simmons disclaims  beneficial  ownership of any shares of Valhi common stock
that this trust holds.</P>


     <P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;NL  and a subsidiary  of
NL  directly  own  3,522,967  and  1,186,200   shares  of  Valhi  common  stock,
respectively.  Pursuant to Delaware law, Valhi treats the shares of Valhi common
stock  that  NL and  the  subsidiary  of NL own as  treasury  stock  for  voting
purposes.  For the purposes of the percentage  calculations  herein, such shares
are not deemed outstanding.</P>

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