KRONOS WORLDWIDE INC — Director's Dealing 2005

May 20, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KRONOS WORLDWIDE INC (KRO)
CIK: 0001257640
Period of Report: 2005-05-19

Reporting Person: SIMMONS GLENN R (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-05-19	Common Stock $0.01 par value	A	500	—	Acquired	708	Direct

Footnotes

F1: Shares issued for no cash consideration to nonemployee directors under the Kronos Worldwide, Inc. 2003 Long-Term Incentive
Plan.