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)
                                November 29, 2005
                                ----------------

                             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 former address, if changed since last report)

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 8.01           Other Events.

         Section  303A.03(4) of the corporate  governance  rules of the New York
Stock Exchange ("NYSE") Listed Company Manual requires NYSE-listed  companies to
disclose in their annual proxy statements:

         O        the  non-management  director  who  presides at all  regularly
                  scheduled executive sessions of the non-management  members of
                  the board of directors; and

         O        a  method  by  which   interested   parties  may  be  able  to
                  communicate   concerns  to  the  presiding   director  of  the
                  non-management directors.


         On October 20, 2005, the  registrant's  board of directors  amended and
restated the registrant's  corporate governance  guidelines to provide, in part,
as follows.

                  The non-management directors of the Company (as defined by the
         rules of the New York Stock Exchange) are entitled to meet on a regular
         basis  throughout  the  year,  and will  meet at least  once  annually,
         without management  participation.  If the non-management directors are
         not all independent directors of the Company, the independent directors
         should meet at least once annually at a meeting of only the independent
         directors.  The chairman of the audit  committee shall be the presiding
         director at all of these meetings.

The registrant  has posted,  among other  corporate  governance  documents,  its
corporate governance guidelines (amended and restated as of October 20, 2005) on
the   corporate    governance   section   of   the   registrant's   website   at
www.kronostio2.com.

         The  registrant  has also  undertaken  with the NYSE to  provide in the
registrant's 2006 proxy statement language similar to the following.

                  Stockholders  and  other   interested   parties  who  wish  to
         communicate with the Board of Directors or its non-management directors
         may do so through the following  procedures.  Such  communications  not
         involving  complaints  or  concerns  regarding   accounting,   internal
         accounting  controls and auditing  matters related to Kronos  Worldwide
         ("Accounting  Complaints or Concerns")  may be sent to the attention of
         Kronos Worldwide's corporate secretary at Kronos Worldwide, Inc., Three
         Lincoln Centre, 5430 LBJ Freeway, Suite 1700, Dallas, Texas 75240-2697.
         Provided that any such communication relates to the business or affairs
         of  Kronos  Worldwide  and is  within  the  function  of the  Board  of
         Directors or its committees,  and does not relate to  insignificant  or
         inappropriate  matters,  such  communications,  or  summaries  of  such
         communications,  will  be  forwarded  to  the  chairman  of  the  audit
         committee,  who  also  serves  as  the  presiding  director  of  Kronos
         Worldwide's non-management and independent director meetings.

                  Accounting   Complaints   or  Concerns,   which  may  be  made
         anonymously,  should be sent to the  attention  of  Kronos  Worldwide's
         general  counsel  with a copy to  Kronos  Worldwide's  chief  financial
         officer at the same  address  as the  corporate  secretary.  Accounting
         Complaints  or Concerns  will be forwarded to the chairman of the audit
         committee. Kronos Worldwide will keep Accounting Complaints or Concerns
         confidential  and  anonymous,  to  the  extent  feasible,   subject  to
         applicable  law.  Information  contained in an Accounting  Complaint or
         Concern may be  summarized,  abstracted  and aggregated for purposes of
         analysis and investigation.

         On November 21, 2005,  the NYSE  notified the  registrant  that it must
publicly   disclose  the  procedure  by  which  a  presiding   director  of  the
non-management  directors is chosen and how interested  parties may  communicate
concerns to the presiding director.





                                    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/ A. Andrew R. Louis
                                                      -----------------------
                                                      A. Andrew R. Louis,
                                                      Associate General Counsel 
                                                      and Assistant Secretary




Date:  November 29, 2005