NL INDUSTRIES INC — Director's Dealing 2004

Dec 2, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KRONOS WORLDWIDE INC (KRO)
CIK: 0001257640
Period of Report: 2004-11-30

Reporting Person: CONTRAN CORP (10% Owner)
Reporting Person: NL INDUSTRIES INC (10% Owner)
Reporting Person: VALHI INC /DE/ (10% Owner)
Reporting Person: TREMONT LLC (10% Owner)
Reporting Person: NATIONAL CITY LINES INC (10% Owner)
Reporting Person: DIXIE RICE AGRICULTURE CORP INC (10% Owner)
Reporting Person: SOUTHWEST LOUISIANA LAND CO INC (10% Owner)
Reporting Person: TIMET FINANCE MANAGEMENT CO (10% Owner)
Reporting Person: SIMMONS HAROLD C (Director, Chairman of the Board & CEO, 10% Owner)
Reporting Person: TITANIUM METALS CORP (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-11-30	Common Stock $0.01 par value	J	5517073	—	Disposed	18564055	Indirect
2004-11-30	Common Stock $0.01 par value	J	5517073	—	Acquired	22101443	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock $0.01 par value	5311899	Indirect
Common Stock $0.01 par value	2850	Indirect

Footnotes

F1: In reliance on Rule 16a-13 promulgated by the Securities and Exchange Commission under the Securities Exchange Act of 1934,
as amended, on November 30, 2004, NL Industries, Inc. ("NL") transferred 5,517,073 shares of common stock, par value $0.01
per share, of the issuer to Valhi, Inc. ("Valhi") at a value of $41.00 per share in satisfaction of certain income tax
liabilities NL owed to Valhi under the terms of the tax agreement among NL, Valhi and Contran Corporation. See the
Additional Information filed as Exhibit 99 to this report for a description of the relationships among the issuer and these
reporting persons.

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.

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.

F4: Directly held by Tremont LLC. See the Additional Information filed as Exhibit 99 to this statement for a description of the
relationships among the persons joining in this filing.

F5: 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.