KRONOS WORLDWIDE, INC. ANNOUNCES A PRICE INCREASE FOR ALL TITANIUM DIOXIDE PRODUCTS SOLD OUTSIDE OF NORTH AMERICA AND EUROPE

CRANBURY, NEW JERSEY – May 2, 2011 – Kronos Worldwide, Inc. (NYSE:  KRO) today announced a price increase for all titanium dioxide products sold outside of North America and Europe including among other areas, Asia Pacific, Latin America, Middle East, Africa and Asia.

Effective July 1, 2011, prices for all Kronos® titanium dioxide products sold outside North America and Europe will be increased by a minimum of US$300 per metric ton or the equivalent in Japanese Yen.

This increase is in addition to the increases previously announced.

Kronos Worldwide, Inc. is a major international producer of titanium dioxide products.

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