KRONOS WORLDWIDE INC — Director's Dealing 2004

Apr 29, 2004

SEC Form 4/A — Form 4/A

Issuer: KRONOS WORLDWIDE INC (KRO)
CIK: 0001257640
Period of Report: 2003-12-08

Reporting Person: CONTRAN CORP (10% Owner)
Reporting Person: VALHI GROUP INC (10% Owner)
Reporting Person: NATIONAL CITY LINES INC (10% Owner)
Reporting Person: NOA INC (10% Owner)
Reporting Person: DIXIE HOLDING CO (10% Owner)
Reporting Person: DIXIE RICE AGRICULTURE CORP INC (10% Owner)
Reporting Person: SOUTHWEST LOUISIANA LAND CO INC (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2003-12-08	Common Stock $0.01 par value	J	23895542	—	Disposed	25047507	Indirect
2003-12-08	Common Stock $0.01 par value	J	5107770	—	Acquired	5107770	Indirect
2003-12-08	Common Stock $0.01 par value	J	15067695	—	Acquired	15067695	Indirect

Footnotes

F1: Upon the December 8, 2003 waiver or satisfaction of all of the conditions to the Distribution Agreement dated November 6, 2003 between NL Industries, Inc. ("NL") and Kronos Worldwide, Inc., the issuer and a subsidiary of NL ("KWI"), NL distributed on December 8, 2003 one share of common stock of KWI for every two shares of NL common stock outstanding as of the close of business on November 17, 2003, the record date for the distribution. In the aggregate, NL distributed 23,895,542 shares of KWI
common stock to holders of NL common stock in the distribution.

F2: Directly held by NL Industries, Inc. See the Additional Information filed as an exhibit to the original Form 4 that this statement amends for a description of the relationship.

F3: Directly held by Tremont LLC. See the Additional Information filed as an exhibit to the original Form 4 that this statement amends for a description of the relationship.

F4: Directly held by Valhi, Inc. See the Additional Information filed as an exhibit to the original Form 4 that this statement amends for a description of the relationship.