KRONOS WORLDWIDE INC — Director's Dealing 2012

Jan 3, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KRONOS WORLDWIDE INC (KRO)
CIK: 0001257640
Period of Report: 2011-12-30

Reporting Person: SIMMONS HAROLD C (Director, Chairman of the Board, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-12-30	Common Stock $0.01 par value	P	700	$17.97	Acquired	545976	Indirect
2011-12-30	Common Stock $0.01 par value	P	912	$17.98	Acquired	546888	Indirect
2011-12-30	Common Stock $0.01 par value	P	8388	$18.00	Acquired	555276	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock $0.01 par value	57990042	Indirect
Common Stock $0.01 par value	35219270	Indirect
Common Stock $0.01 par value	543440	Direct
Common Stock $0.01 par value	373334	Indirect
Common Stock $0.01 par value	5372	Indirect

Footnotes

F1: Open market purchases by the reporting person's spouse.

F2: Directly held by the reporting person's spouse. The reporting person disclaims beneficial ownership of any shares of the issuer's common stock that his spouse holds.

F3: Directly held by Valhi, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.

F4: Directly held by NL Industries, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.

F5: Directly held by TIMET Finance Management Company. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.

F6: Directly held by Contran Corporation. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.