X0201 4 2003-12-08 0 0001257640 KRONOS WORLDWIDE INC kro 0000024240 CONTRAN CORP 5430 LBJ FRWY SUITE 1700 DALLAS TX 75240 0 0 1 0 0001074793 VALHI GROUP INC 5430 LBJ FREEWAY SUITE 1700 DALLAS TX 75240 0 0 1 0 0000069972 NATIONAL CITY LINES INC 5430 LBJ FREEWAY SUITE 1700 DALLAS TX 75240 0 0 1 0 0001074789 NOA INC 5430 LBJ FREEWAY SUITE 1700 DALLAS TX 75240 0 0 1 0 0001074786 DIXIE HOLDING CO 5430 LBJ FREEWAY SUITE 1700 DALLAS TX 75240 0 0 1 0 0001074787 DIXIE RICE AGRICULTURE CORP INC 600 PASQUIERE ST GUEYDAN LA 70542 0 0 1 0 0001074790 SOUTHWEST LOUISIANA LAND CO INC 402 CANAL ST HOUMA LA 70360 0 0 1 0 Common Stock $0.01 par value 2003-12-08 4 J 0 23882042 0 D 25061007 I by NL Common Stock $0.01 par value 2003-12-08 4 J 0 5107770 0 A 5107770 I by Tremont LLC Common Stock $0.01 par value 2003-12-08 4 J 0 15067695 0 A 15067695 I by Valhi 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 23,882,042 shares of KWI common stock to holders of NL common stock in the distribution. Directly held by NL Industries, Inc. See the Additional Information filed as an exhibit to this statement for a description of the relationship. Directly held by Tremont LLC. See the Additional information filed as an exhibit to this statement for a description of the relationship. Directly held by Valhi, Inc. See the Additional information filed as an exhibit to this statement for a description of the relationship. A. Andrew R. Louis, Secretary, for Contran Corporation 2003-12-09 A. Andrew R. Louis, Secretary, for Valhi Group, Inc. 2003-12-09 A. Andrew R. Louis, Secretary, for National City LInes, Inc. 2003-12-09 A. Andrew R. Louis, Secretary, for NOA, Inc. 2003-12-09 A. Andrew R. Louis, Secretary, for Dixie Holding Company 2003-12-09 A. Andrew R. Louis, Secretary, for Dixie Rice Agrcultural Corporation, Inc. 2003-12-09 A. Andrew R. Louis, Secretary, for Southwest Louisisana Land Company, Inc. 2003-12-09