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.

                                    * * * * *


                              WASHINGTON, DC 20549



                                    FORM 8-K



                                 CURRENT REPORT



                Pursuant to Section 13 or 15(d) of the Securities
                              Exchange Act of 1934



                          Date of Report: May 20, 2004




                             KRONOS WORLDWIDE, INC.
             (Exact name of Registrant as specified in its charter)



      Delaware                       1-31763                    76-0294959
  (State or other                  (Commission                 (IRS Employer
   jurisdiction of                 File Number)                Identification
   incorporation)                                                   No.)



  5430 LBJ Freeway, Suite 1700, Dallas, TX                      75240-2697
  (Address of principal executive offices)                      (Zip Code)



                                 (972) 233-1700
              (Registrant's telephone number, including area code)



             (Former name or address, if changed since last report)


Item 9: Regulation FD Disclosure Pursuant to Item 9 of this current report, the registrant hereby furnishes the information set forth in the press release issued on May 20, 2004 a copy of which is attached hereto as Exhibit 99.1 and incorporated herein by reference. The information, including the exhibit, the registrant furnishes in this Item 9 and Exhibit 99.1 of this report is not deemed "filed" for purposes of section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Registration statements or other documents filed with the Securities and Exchange Commission shall not incorporate this information by reference, except as otherwise expressly stated in such filing.

SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. KRONOS WORLDWIDE, INC. (Registrant) By: /s/ Gregory M. Swalwell ---------------------------- Gregory M. Swalwell Vice President, Finance Date: May 20, 2004

INDEX TO EXHIBITS Exhibit No. Description - ----------- -------------------------------------------------- 99.1 Press release dated May 20, 2004 issued by Kronos Worldwide, Inc.