KRONOS WORLDWIDE, INC.                  Contact:    Gregory M. Swalwell
Three Lincoln Centre                                Vice President,  Finance and
5430 LBJ Freeway, Suite 1700                           Chief Financial Officer
Dallas, Texas   75240-2697                          (972) 233-1700
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PRESS RELEASE
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FOR IMMEDIATE RELEASE


               KRONOS WORLDWIDE, INC. ANNOUNCES QUARTERLY DIVIDEND


         DALLAS,  TEXAS - August 29, 2005 - Kronos  Worldwide,  Inc. (NYSE: KRO)
announced that its board of directors has declared a regular quarterly  dividend
of twenty five cents ($0.25) per share on its common stock, payable on September
23, 2005 to  stockholders  of record at the close of business  on  September  9,
2005.

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

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