KRONOS WORLDWIDE INC — Director's Dealing 2010

May 14, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KRONOS WORLDWIDE INC (KRO)
CIK: 0001257640
Period of Report: 2010-05-13

Reporting Person: POSTON GEORGE E (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-13	Common Stock $0.01 par value	A	1000	—	Acquired	6000	Direct

Footnotes

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