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


          KRONOS WORLDWIDE, INC. ANNOUNCES 2004 SECOND QUARTER DIVIDEND
                   AND RESULTS OF ANNUAL STOCKHOLDER MEETING


     DALLAS, TEXAS - May 20, 2004 - Kronos Worldwide, Inc. (NYSE: KRO) announced
that its board of directors has declared a regular quarterly  dividend of twenty
five ($0.25)  cents per share on its common  stock,  payable on June 28, 2004 to
stockholders of record at the close of business on June 11, 2004.

     Kronos  Worldwide  also  announced  that  its  stockholders  at the  annual
stockholder  meeting  held today  elected six  directors  for terms of one year.
Kronos Worldwide's  directors are: Cecil H. Moore, Jr., George E. Poston,  Glenn
R. Simmons, Harold C. Simmons, R. Gerald Turner and Steven L. Watson.

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

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