KRONOS WORLDWIDE INC — Director's Dealing 2007

Oct 30, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KRONOS WORLDWIDE INC (KRO)
CIK: 0001257640
Period of Report: 2007-10-26

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-10-26	Common Stock $0.01 par value	A	1000	$14.6299	Acquired	6755	Direct
2007-10-26	Common Stock $0.01 par value	A	400	$14.65	Acquired	7155	Direct
2007-10-26	Common Stock $0.01 par value	A	847	$14.66	Acquired	8002	Direct
2007-10-26	Common Stock $0.01 par value	A	253	$14.67	Acquired	8255	Direct
2007-10-26	Common Stock $0.01 par value	A	100	$14.68	Acquired	8355	Direct
2007-10-26	Common Stock $0.01 par value	A	120	$14.69	Acquired	8475	Direct
2007-10-26	Common Stock $0.01 par value	A	980	$14.70	Acquired	9455	Direct
2007-10-26	Common Stock $0.01 par value	A	100	$14.71	Acquired	9555	Direct
2007-10-26	Common Stock $0.01 par value	A	2000	$14.70	Acquired	11555	Direct
2007-10-26	Common Stock $0.01 par value	A	4200	$14.75	Acquired	15755	Direct
2007-10-26	Common Stock $0.01 par value	A	440	$14.79	Acquired	16195	Direct
2007-10-26	Common Stock $0.01 par value	A	1300	$14.89	Acquired	17495	Direct
2007-10-26	Common Stock $0.01 par value	A	260	$15.25	Acquired	17755	Direct
2007-10-26	Common Stock $0.01 par value	A	600	$15.32	Acquired	18355	Direct
2007-10-26	Common Stock $0.01 par value	A	700	$15.35	Acquired	19055	Direct
2007-10-26	Common Stock $0.01 par value	A	300	$15.36	Acquired	19355	Direct
2007-10-26	Common Stock $0.01 par value	A	100	$15.37	Acquired	19455	Direct
2007-10-26	Common Stock $0.01 par value	A	400	$15.44	Acquired	19855	Direct
2007-10-26	Common Stock $0.01 par value	A	500	$15.45	Acquired	20355	Direct
2007-10-26	Common Stock $0.01 par value	A	100	$15.46	Acquired	20455	Direct
2007-10-26	Common Stock $0.01 par value	A	400	$15.48	Acquired	20855	Direct
2007-10-26	Common Stock $0.01 par value	A	2563	$15.50	Acquired	23418	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock $0.01 par value	28995021	Indirect
Common Stock $0.01 par value	17516132	Indirect
Common Stock $0.01 par value	5203	Indirect
Common Stock $0.01 par value	36356	Indirect

Footnotes

F1: Shares purchased in open market transactions.

F2: Directly held by Valhi, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the
relationships.

F3: Directly held by NL Industries, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description
of the relationships.

F4: Directly held by TIMET Finance Management Company. See the Additional Information filed as Exhibit 99 to this statement for
a description of the relationships.

F5: Directly held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of these shares.