UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

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

              Date of Report (Date of the earliest event reported)
                                September 3, 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, Texas                 75240-2697
 (Address of principal executive offices)                  (Zip Code)

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


Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2):

[   ]     Written  communications  pursuant to Rule 425 under the Securities Act
          (17 CFR 230.425)

[   ]     Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17
          CFR 240.14a-12)

[   ]     Pre-commencement  communications  pursuant to Rule 14d-2(b)  under the
          Exchange Act (17 CFR 240.14d-2(b))

[   ]     Pre-commencement  communications  pursuant to Rule 13e-4(c)  under the
          Exchange Act (17 CFR 240.13e-4(c))





Item 1.01 Entry into a Material Definitive Agreement.


Item 2.03 Creation of a Direct  Financial  Obligation or an Obligation  under an
          Off-Balance Sheet Arrangement of a Registrant.

On September 3, 2004, certain subsidiaries of Kronos Worldwide,  Inc. ("Kronos")
entered  into the First  Amendment  Agreement  Relating To A Facility  Agreement
dated June 25, 2002 (the  "Amendment").  The  Amendment  added two wholly  owned
indirect  subsidiaries  of Kronos as additional  borrowers under Kronos' euro 80
million  European  revolving  credit  facility,  a copy of which can be found as
Exhibit No. 10.1 to the  Quarterly  Report on Form 10-Q of NL  Industries,  Inc.
(File No. 1-640) for the quarter ended June 30, 2002.






                                    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/ Robert D. Graham
                                   ----------------------------
                                   Robert D. Graham
                                   Vice President, General Counsel
                                   and Secretary





Date:  September 7, 2004