KRONOS WORLDWIDE INC — Director's Dealing 2011

May 16, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KRONOS WORLDWIDE INC (KRO)
CIK: 0001257640
Period of Report: 2011-05-13

Reporting Person: WATSON STEVEN L (Director, Vice Chair. of the Board & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-13	Common Stock $0.01 par value	P	1000	$53.90	Acquired	21626	Direct
2011-05-13	Common Stock $0.01 par value	P	1000	$54.15	Acquired	22626	Direct
2011-05-13	Common Stock $0.01 par value	P	1000	$55.50	Acquired	23626	Direct