X0201 4 2003-12-19 0 0001257640 KRONOS WORLDWIDE INC kro 0000024240 CONTRAN CORP 5430 LBJ FRWY 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 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 0001074790 SOUTHWEST LOUISIANA LAND CO INC 402 CANAL ST HOUMA LA 70360 0 0 1 0 0001074793 VALHI GROUP INC 5430 LBJ FREEWAY SUITE 1700 DALLAS TX 75240 0 0 1 0 Common Stock $0.01 par value 2003-12-19 4 J 0 14000 18 A 15121195 I by Valhi Common Stock $0.01 par value 2003-12-19 4 J 0 100 17.89 A 15121295 I by Valhi Common Stock $0.01 par value 2003-12-19 4 J 0 9900 17.9 A 15131195 I by Valhi Common Stock $0.01 par value 25047507 I by NL Common Stock $0.01 par value 5107770 I by Tremont Open market purchase by Valhi, Inc. 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. 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. A. Andrew R. Louis, Secretary, for Contran Corporation 2003-12-22 A. Andrew R. Louis, Secretary, for Dixie Holdng Company 2003-12-22 A. Andrew R. Louis, Secretary, for Dixie Rice Agricultural Corporation, Inc. 2003-12-22 A. Andrew R. Louis, Secretary, for National City Lines, Inc. 2003-12-22 A. Andrew R. Louis, Secretary, for NOA, Inc. 2003-12-22 A. Andrew R. Louis, Secretary, for Southwest Louisiana Land Company, Inc. 2003-12-22 A. Andrew R. Louis, Secretary, for Valhi Group, Inc. 2003-12-22