SCHEDULE 14A INFORMATION
                Proxy Statement Pursuant to Section 14(a) of the
                         Securities Exchange Act of 1934

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[ ] Soliciting Materials Pursuant to Section 240.14a-11(c) or Section 240.14a-12

                             Kronos Worldwide, Inc.
--------------------------------------------------------------------------------
                (Name of Registrant as Specified in Its Charter)

--------------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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[X] No fee required.

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[LOGO GOES HERE]              KRONOS WORLDWIDE, INC.
                              THREE LINCOLN CENTRE
                          5430 LBJ FREEWAY, SUITE 1700
                            DALLAS, TEXAS 75240-2697





                                 April 18, 2005




To our Stockholders:

     You are cordially invited to attend the 2005 Annual Meeting of Stockholders
of Kronos  Worldwide,  Inc.,  which will be held on Thursday,  May 19, 2005,  at
10:00 a.m., local time, at Kronos Worldwide's corporate offices at Three Lincoln
Centre,  5430 LBJ Freeway,  Suite 1700,  Dallas,  Texas. The matters to be acted
upon at the meeting are  described in the attached  Notice of Annual  Meeting of
Stockholders and Proxy Statement.

     Whether or not you plan to attend the meeting, please complete,  date, sign
and  return  the  enclosed  proxy  card  or  voting   instruction  form  in  the
accompanying  envelope  as  promptly  as possible to ensure that your shares are
represented and voted in accordance with your wishes.

                                    Sincerely,

                                    /s/ Harold C. Simmons
                                    Harold C. Simmons
                                    Chairman of the Board and
                                    Chief Executive Officer





                             KRONOS WORLDWIDE, INC.
                              THREE LINCOLN CENTRE
                          5430 LBJ FREEWAY, SUITE 1700
                            DALLAS, TEXAS 75240-2697

                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

                             To Be Held May 19, 2005




To the Stockholders of Kronos Worldwide, Inc.:

     NOTICE IS HEREBY GIVEN that the 2005 Annual  Meeting of  Stockholders  (the
"Meeting")  of  Kronos  Worldwide,   Inc.,  a  Delaware   corporation   ("Kronos
Worldwide"),  will be held on Thursday, May 19, 2005, at 10:00 a.m., local time,
at Kronos  Worldwide's  corporate  offices  at Three  Lincoln  Centre,  5430 LBJ
Freeway, Suite 1700, Dallas, Texas for the following purposes:

     (1)  To elect seven  directors  to serve  until the 2006 Annual  Meeting of
          Stockholders; and

     (2)  To  transact  such other  business  as may  properly  come  before the
          Meeting or any adjournment or postponement thereof.

     The close of  business  on March 28,  2005 has been set as the record  date
(the "Record Date") for the Meeting.  Only holders of Kronos  Worldwide's common
stock,  par value  $0.01 per share,  at the close of business on the Record Date
are entitled to notice of, and to vote at, the Meeting. Kronos Worldwide's stock
transfer books will not be closed  following the Record Date. A complete list of
stockholders  entitled to vote at the Meeting will be available for  examination
during  normal  business  hours by any  stockholder  of  Kronos  Worldwide,  for
purposes  related to the Meeting,  for a period of ten days prior to the Meeting
at the place where Kronos Worldwide will hold the Meeting.

     You are cordially invited to attend the Meeting. Whether or not you plan to
attend the Meeting,  please complete,  date and sign the accompanying proxy card
or voting instruction form and return it promptly in the enclosed  envelope.  If
you  choose,  you may still  vote in  person  at the  Meeting  even  though  you
previously submitted your proxy.


                                   By Order of the Board of Directors,

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

Dallas, Texas
April 18, 2005




                             KRONOS WORLDWIDE, INC.
                              THREE LINCOLN CENTRE
                          5430 LBJ FREEWAY, SUITE 1700
                            DALLAS, TEXAS 75240-2697

                         ------------------------------

                                 PROXY STATEMENT

                         ------------------------------

                               GENERAL INFORMATION

     This proxy statement and the accompanying  proxy card or voting instruction
form are being furnished in connection  with the  solicitation of proxies by and
on  behalf of the  board of  directors  (the  "Board  of  Directors")  of Kronos
Worldwide,  Inc., a Delaware  corporation ("Kronos  Worldwide"),  for use at the
2005 Annual Meeting of Stockholders of Kronos  Worldwide to be held on Thursday,
May 19, 2005 and at any adjournment or postponement thereof (the "Meeting"). The
accompanying  Notice of Annual Meeting of Stockholders (the "Notice") sets forth
the time, place and purposes of the Meeting.  The Notice,  this proxy statement,
the accompanying  proxy card or voting  instruction form and Kronos  Worldwide's
Annual Report to Stockholders,  which includes Kronos  Worldwide's Annual Report
on Form 10-K for the fiscal year ended December 31, 2004, are first being mailed
to the holders of Kronos  Worldwide's  common  stock,  par value $0.01 per share
("Common  Stock"),  on or about April 18,  2005.  Kronos  Worldwide's  principal
executive offices are located at Three Lincoln Centre,  5430 LBJ Freeway,  Suite
1700, Dallas, Texas 75240-2697.

                  QUORUM, VOTING RIGHTS AND PROXY SOLICITATION

     The record  date set by the Board of  Directors  for the  determination  of
stockholders  entitled  to notice of and to vote at the Meeting was the close of
business on March 28, 2005 (the "Record Date"). Only holders of shares of Common
Stock as of the close of business on the Record Date are entitled to vote at the
Meeting.  As of the Record Date,  there were  48,946,049  shares of Common Stock
issued and  outstanding.  Each share of Common Stock  entitles its holder to one
vote on all matters to be acted on at the Meeting. The presence, in person or by
proxy,  of the holders of a majority of the shares of Common  Stock  entitled to
vote at the  Meeting is  necessary  to  constitute  a quorum for the  conduct of
business at the Meeting.  Under  applicable rules of the New York Stock Exchange
(the "NYSE") and  Securities  and Exchange  Commission  (the "SEC"),  brokers or
other nominees  holding shares of record on behalf of a client who is the actual
beneficial  owner of such  shares  are  authorized  to vote on  certain  routine
matters without receiving  instructions from the beneficial owner of the shares.
If a  broker/nominee  who is entitled to vote on a routine  matter does not vote
such shares,  such shares are referred to herein as "broker/nominee  non-votes."
Shares of Common Stock that are voted to abstain from any business coming before
the Meeting and broker/nominee  non-votes will be counted as being in attendance
at the Meeting for purposes of determining whether a quorum is present.

     If a  quorum  is  present,  a  plurality  of the  affirmative  votes of the
outstanding  shares of Common Stock  represented and entitled to be voted at the
Meeting  is  necessary  to  elect  each  director  of  Kronos   Worldwide.   The
accompanying  proxy  card  or  voting  instruction  form  provides  space  for a
stockholder to withhold  authority to vote for any or all of the nominees to the
Board of  Directors.  Neither  shares as to which the  authority  to vote on the
election of directors has been  withheld nor  broker/nominee  non-votes  will be
counted  as  affirmative  votes  to  elect  director  nominees  to the  Board of
Directors.  However,  since  director  nominees  need only receive the vote of a
plurality of the shares  represented and entitled to vote at the Meeting, a vote
withheld from a particular nominee will not affect the election of such nominee.

     Except as applicable  laws may otherwise  provide,  if a quorum is present,
the approval of any other matter that may properly  come before the Meeting will
require  the  affirmative  vote of a  majority  of the  shares  represented  and
entitled  to vote at the  Meeting.  Shares  of  Common  Stock  that are voted to
abstain from any other  business  coming  before the Meeting and  broker/nominee
non-votes will not be counted as votes for or against any such other matter.



     Unless  otherwise  specified,  the agents  designated  in the proxy card or
voting  instruction  form will  vote the  shares  represented  by a proxy at the
Meeting  "FOR" the election of the  director  nominees to the Board of Directors
and, to the extent allowed by applicable law, in the discretion of the agents on
any other matter that may properly come before the Meeting.

     EquiServe  Trust  Company  N.A.  ("EquiServe"),   the  transfer  agent  and
registrar for the Common Stock as of the Record Date,  has been appointed by the
Board of  Directors  to receive  proxies and  ballots,  ascertain  the number of
shares represented, tabulate the vote and serve as inspector of election for the
Meeting.

     Each holder of record of Common Stock  executing and  delivering  the proxy
card enclosed  with this proxy  statement may revoke it at any time prior to the
voting at the Meeting by  delivering  to EquiServe a written  revocation  of the
proxy, a duly executed proxy card bearing a later date or by voting in person at
the  Meeting.  Attendance  by a  stockholder  at the Meeting  will not in itself
constitute the revocation of such stockholder's proxy.

     The Board of Directors is making this proxy solicitation.  Kronos Worldwide
will  pay all  expenses  related  to the  solicitation,  including  charges  for
preparing,  printing,  assembling and  distributing  all materials  delivered to
stockholders.  In addition to the solicitation by mail, directors,  officers and
regular  employees of Kronos  Worldwide  may solicit  proxies by telephone or in
person, for which such persons will receive no additional  compensation.  Kronos
Worldwide has retained The Altman Group, Inc. to aid in the distribution of this
proxy  statement  and related  materials  at an estimated  cost of $1,000.  Upon
request, Kronos Worldwide will reimburse banking institutions,  brokerage firms,
custodians,   trustees,   nominees   and   fiduciaries   for  their   reasonable
out-of-pocket  expenses  incurred in  distributing  proxy  materials  and voting
instructions to the beneficial owners of Common Stock that such entities hold of
record.

                               CONTROLLED COMPANY

     Valhi, Inc. ("Valhi") and NL Industries, Inc. ("NL") are the direct holders
of 56.4% and 36.4%,  respectively,  of the outstanding shares of Common Stock as
of the Record Date.  Together,  Valhi and NL own 92.8% of the outstanding shares
of Common Stock.  Valhi is the direct holder of 83.1% of the outstanding  shares
of NL common  stock,  par value  $0.125 per share ("NL Common  Stock").  Contran
Corporation  ("Contran") holds, directly or through  subsidiaries,  90.8% of the
outstanding  shares of Valhi  common  stock,  par value $0.01 per share  ("Valhi
Common Stock").

     Valhi and NL have each  indicated  their  intention to have their shares of
Common Stock  represented at the Meeting and voted "FOR" the election of each of
the  director  nominees to the Board of  Directors.  If Valhi alone  attends the
Meeting in person or by proxy and votes as  indicated,  the Meeting  will have a
quorum present and the stockholders  will elect all the nominees to the Board of
Directors.

     Because of the Common Stock ownership by Valhi and NL, Kronos  Worldwide is
considered  a  controlled  company  under  the  listing  standards  of the NYSE.
Pursuant to the listing standards, a controlled company may choose not to have a
majority of  independent  directors,  independent  compensation,  nominating  or
corporate  governance  committees  or  charters  for  these  committees.  Kronos
Worldwide  has  chosen  not to  have  an  independent  nominating  or  corporate
governance  committee.  The Board of Directors  believes  that the full Board of
Directors  best   represents   the  interests  of  all  of  Kronos   Worldwide's
stockholders and that it is appropriate for all matters that would be considered
by a nominating or corporate  governance  committee to be  considered  and acted
upon by the full Board of  Directors.  Applying the NYSE  director  independence
standards,  the Board of Directors has determined that four of its directors are
independent and have no material  relationship with Kronos Worldwide.  While the
members of Kronos Worldwide's  management development and compensation committee
(the "MD&C Committee")  currently  satisfy the independence  requirements of the
NYSE,  Kronos  Worldwide  has  chosen  not to  satisfy  all of the NYSE  listing
standards for a  compensation  committee.  See  "Meetings and  Committees of the
Board of  Directors"  for more  information  on the  committees  of the Board of
Directors. See also "Stockholder Proposals and Director Nominations for the 2006
Annual Meeting" for a description of Kronos Worldwide's  policies and procedures
for stockholder nominations of directors.

                                      -2-


                              ELECTION OF DIRECTORS

     The bylaws of Kronos  Worldwide  provide that the Board of Directors  shall
consist of one or more  members as  determined  by the Board of Directors or the
stockholders.  The Board of Directors  has currently set the number of directors
at seven.  The directors  elected at the Meeting will hold office until the 2006
Annual Meeting of Stockholders  and until their  successors are duly elected and
qualified or their earlier removal, resignation or death.

     All of the nominees are currently directors of Kronos Worldwide whose terms
will expire at the Meeting. All of the nominees have agreed to serve if elected.
If any  nominee  is not  available  for  election  at the  Meeting,  all  shares
represented  by a proxy will be voted "FOR" an alternate  nominee to be selected
by the Board of Directors, unless the stockholder executing such proxy withholds
authority to vote for such nominee.  The Board of Directors believes that all of
its  nominees  will be  available  for election at the Meeting and will serve if
elected.

     THE  BOARD  OF  DIRECTORS  RECOMMENDS  A VOTE  "FOR"  THE  ELECTION  OF THE
FOLLOWING NOMINEES FOR DIRECTOR.

     Nominees for Director. The respective nominees for election as directors of
Kronos  Worldwide for terms expiring at the 2006 Annual Meeting of  Stockholders
have provided the following information.

     Keith R. Coogan, age 52, has served as a director of Kronos Worldwide since
2004. Mr. Coogan is chief executive officer of Software Spectrum, Inc., a global
business-to-business software services provider that is currently a wholly owned
subsidiary  of  Level 3  Communications,  but from  1991 to 2002 was a  publicly
traded  corporation  ("SSI").  From 1990 to 2002,  he served  in  various  other
executive  officer  positions of SSI,  including  vice  president of finance and
operations  and  chief  operating  officer.  He is  also  a  director  of  CompX
International  Inc., a manufacturer of precision  slides,  security products and
ergonomic computer support systems that is related to NL ("CompX"), and Keystone
Consolidated Industries, Inc., a steel fabricated wire products, industrial wire
and carbon steel rod company that is related to Contran ("Keystone"). Mr. Coogan
is a member  of Kronos  Worldwide's  audit  committee  and  chairman  of each of
CompX's and Keystone's audit committees.

     Cecil H. Moore,  Jr., age 65, has been a director of Kronos Worldwide since
2003.  Mr.  Moore is  currently a private  investor and retired from KPMG LLP in
2000  after 37 years in which he served  in  various  capacities  with the firm.
Among other positions, he served as managing partner of the firm's Dallas, Texas
business unit from 1990 to 1999. Prior to 1990, Mr. Moore was  partner-in-charge
of the audit and accounting  practice of the firm's Dallas,  Texas business unit
for 12 years.  He is chairman of Kronos  Worldwide's  audit committee and on the
board of directors  and audit  committee of NL. Mr. Moore is also a director and
chairman  of the audit  committee  of Perot  Systems  Corporation,  a  worldwide
provider of information technology services and business solutions.

     George E.  Poston,  age 69, has been a director of Kronos  Worldwide  since
2003. From 2002 to 2003, he served as a director of NL. He has been president of
Poston  Real  Estate Co., a privately  held  commercial  real estate  investment
company,  and  president  of Poston  Capital  Co., a privately  held  investment
company,  since  1970.  Mr.  Poston  is a member  of  Kronos  Worldwide's  audit
committee and  management  development  and  compensation  committee  (the "MD&C
Committee").

     Glenn R.  Simmons,  age 77, has been a director of Kronos  Worldwide  since
2003. Mr. Simmons has been vice chairman of the board of Valhi and Contran since
prior to 2000. Mr.  Simmons is chairman of the board of Keystone and CompX.  Mr.
Simmons is also a director of NL and Titanium Metals Corporation  ("TIMET"),  an
integrated  producer of titanium  metals  products that is related to Valhi.  In
February 2004,  Keystone  filed a voluntary  petition for  reorganization  under
federal  bankruptcy laws. Mr. Simmons has been an executive  officer or director
of various companies related to Valhi and Contran since 1969. He is a brother of
Harold C. Simmons.

     Harold C.  Simmons,  age 73, has served as  chairman of the board and chief
executive  officer of Kronos  Worldwide  since 2003.  Mr.  Simmons has served as
chief  executive  officer of NL since 2003 and chairman of the board of NL since
prior to 2000.  He also has served as vice  chairman of the board of TIMET since
August  2004.  Mr.  Simmons has been  chairman of the board of Valhi and Contran
since prior to 2000 and was chief executive  officer of Valhi from prior to 2000
to 2002.  Mr.  Simmons  has been an  executive  officer or  director  of various
companies  related to Valhi and Contran since 1961.  Mr. Simmons is a brother of
Glenn R. Simmons.

                                      -3-


     Dr. R. Gerald Turner, age 59, has been a director of Kronos Worldwide since
2003.  From May 2003 to  December  2003,  he was a director of NL. He has served
since 1995 as president of Southern  Methodist  University in Dallas,  Texas. He
held  previous  executive  and  administrative  positions at the  University  of
Mississippi,  the University of Oklahoma and Pepperdine University. He serves on
the  board of  directors  of J.C.  Penney  Corporation,  Inc.,  American  Beacon
Advisors Funds and First Broadcasting  Investment Partners, LLC. Dr. Turner is a
member of Kronos Worldwide's audit committee and chairman of the MD&C Committee.

     Steven L.  Watson,  age 54,  has  served as vice  chairman  of the board of
Kronos  Worldwide  since October 2004 and a director of Kronos  Worldwide  since
2003.  Mr.  Watson has been  president and a director of Valhi and Contran since
1998 and chief  executive  officer of Valhi  since  2002.  Mr.  Watson is also a
director of CompX, Keystone, NL and TIMET. Mr. Watson has served as an executive
officer or director  of various  companies  related to Valhi and  Contran  since
1980.

                MEETINGS AND COMMITTEES OF THE BOARD OF DIRECTORS

     The Board of  Directors  held  three  meetings  and took  action by written
consent on five occasions in 2004. Each director participated in at least 75% of
such  meetings and of the meetings of the  committees  on which he served at the
time. It is expected that each  director will attend Kronos  Worldwide's  annual
meetings of stockholders,  which are held immediately before the annual meetings
of the Board of  Directors.  All members of the Board of  Directors at that time
attended Kronos Worldwide's 2004 annual stockholder meeting.

     The Board of  Directors  has  established  and  delegated  authority to the
following two standing committees.

          Audit  Committee.  The  audit  committee  assists  with  the  Board of
     Directors' oversight  responsibilities relating to the financial accounting
     and reporting  processes and auditing  processes of Kronos  Worldwide.  The
     responsibilities  of the audit committee are more specifically set forth in
     the  audit  committee  charter,  a copy of which  is  available  under  the
     corporate    governance    section   of   Kronos    Worldwide's    website,
     www.kronostio2.com. Applying the requirements of the NYSE listing standards
     and SEC regulations,  as applicable,  the Board of Directors has determined
     that

          o    each member of the audit  committee is  independent,  financially
               literate and has no material  relationship with Kronos Worldwide;
               and
          o    Mr. Cecil H. Moore, Jr. is an "audit committee financial expert."

     No member of the audit  committee  serves on more than three public company
     audit  committees.  For  further  information  on the  role  of  the  audit
     committee,  see "Audit Committee  Report." The current members of the audit
     committee are Cecil H. Moore, Jr.  (chairman),  Keith R. Coogan,  George E.
     Poston and R. Gerald Turner. The audit committee held ten meetings and took
     action by written consent on one occasion in 2004.

          Management  Development  and  Compensation  Committee.  The  principal
     responsibilities  of the MD&C  Committee are to review and approve  certain
     matters  involving  executive  compensation;  to  recommend to the Board of
     Directors whether or not to approve any proposed charge to Kronos Worldwide
     or its subsidiaries pursuant to an intercorporate services agreement with a
     related  party;  to take  action or to review and approve  certain  matters
     regarding  Kronos  Worldwide's  employee  benefit  plans  or  programs;  to
     administer and grant awards under the Kronos Worldwide, Inc. 2003 Long-Term
     Incentive Plan; to approve certain annual  incentive  compensation  awards;
     and to review and administer such other  compensation  matters as the Board
     of  Directors  may direct  from time to time.  The Board of  Directors  has
     determined  that  each  member  of the MD&C  Committee  is  independent  by
     applying the NYSE director independence standards.  For further information
     on the role of the MD&C Committee, see "Executive Compensation Report." The
     current  members of the MD&C Committee are R. Gerald Turner  (chairman) and
     George E. Poston.  The MD&C  Committee  held no meetings and took action by
     written consent on two occasions in 2004.

     The Board of  Directors  is expected  to elect the members of the  standing
committees at the Board of Directors  annual meeting  immediately  following the
Meeting.  The Board of Directors has  previously  established,  and from time to
time may  establish,  other  committees  to  assist it in the  discharge  of its
responsibilities.

                                      -4-


                               EXECUTIVE OFFICERS

     Set forth below is certain  information  relating to the executive officers
of Kronos Worldwide.  Each executive officer serves at the pleasure of the Board
of  Directors.  Biographical  information  with respect to Harold C. Simmons and
Steven  L.  Watson is set  forth  under  "Election  of  Directors--Nominees  for
Director."




         Name               Age                Position(s)
-------------------------  ------  ---------------------------------------
                             
Harold C. Simmons........    73    Chairman of the Board and Chief Executive Officer
Steven L. Watson.........    54    Vice Chairman of the Board
Dr. Ulfert Fiand.........    56    President, Manufacturing and Technology
H. Joseph  Maas..........    53    President, Sales and Marketing
Douglas C. Weaver........    63    Senior Vice President, Development
James W. Brown...........    48    Vice President and Controller
Robert D. Graham.........    49    Vice President, General Counsel and Secretary
Kelly D. Luttmer.........    41    Vice President and Tax Director
John A. St. Wrba.........    48    Vice President and Treasurer
Gregory M. Swalwell......    48    Vice President, Finance and Chief Financial Officer



     Dr. Ulfert Fiand has served as president,  manufacturing  and technology of
Kronos  Worldwide  since  October  2004 and  previously  served as  senior  vice
president, manufacturing and technology since 2003. Since 2001, he has served as
president of manufacturing and technology of Kronos International, Inc. ("KII"),
a subsidiary of Kronos  Worldwide.  Dr. Fiand joined KII in 1988, and previously
served as group leader and director of chloride process technology,  director of
process technology and vice president of production & process technology.

     H.  Joseph  Maas has served as  president,  sales and  marketing  of Kronos
Worldwide  since October 2004 and  previously  served as senior vice  president,
sales and marketing  since 2003.  Mr. Maas served as vice president of marketing
for Kronos since 1997.  Prior to that,  he served as director of  marketing  for
Kronos from 1990 to 1996. Mr. Maas has also held several positions in commercial
development, marketing and planning for various divisions of NL since 1978.

     Douglas C.  Weaver  has served as senior  vice  president,  development  of
Kronos Worldwide since 2003. Mr. Weaver served as vice president, development of
Kronos  Worldwide  since  1998.  Prior to that,  Mr.  Weaver  served in  various
manufacturing, engineering and planning capacities with NL since 1973.

     James W. Brown has served as vice president and controller of NL and Kronos
Worldwide  since 2003.  From 1998 to 2002, he served as vice president and chief
financial officer of SSI. From 1994 to 1998, Mr. Brown served as vice president,
corporate  accounting  of  Affiliated  Computer  Services,  Inc.,  a provider of
business process and information technology outsourcing solutions.

     Robert  D.  Graham  has  served  as vice  president,  general  counsel  and
secretary of Kronos  Worldwide and NL since 2003 and vice president of Valhi and
Contran  since  2002.  From 1997 to 2002,  Mr.  Graham  served  as an  executive
officer,  and most recently as executive vice president and general counsel,  of
SSI.  From  1985 to 1997,  Mr.  Graham  was a  partner  in the law firm of Locke
Purnell  Rain  Harrell (A  Professional  Corporation),  a  predecessor  to Locke
Liddell & Sapp LLP.

     Kelly D. Luttmer has served as vice president of Kronos  Worldwide,  CompX,
Contran,  NL and Valhi since October 2004, tax director of Kronos  Worldwide and
NL since 2003 and tax  director  of CompX,  Valhi and Contran  since  1998.  Ms.
Luttmer has served in tax accounting positions with various companies related to
Valhi and Contran since 1989.

                                      -5-


     John A. St. Wrba has served as vice president of Kronos Worldwide since May
2004  and  treasurer  since  2003.  He has also  served  as vice  president  and
treasurer of Valhi since February 2005,  Contran since October 2004 and NL since
2003. He was NL's  assistant  treasurer from 2002 to 2003 and from prior to 1998
until 2000. From 2000 until 2002, he was assistant  treasurer of Kaiser Aluminum
& Chemical Corporation, a leading producer of fabricated aluminum products.

     Gregory  M.  Swalwell  has  served  as chief  financial  officer  of Kronos
Worldwide and NL since May 2004, vice president, finance of Kronos Worldwide and
NL since 2003 and vice president and controller of Valhi and Contran since prior
to 2000.  Mr.  Swalwell has served in accounting  and financial  positions  with
various companies related to Valhi and Contran since 1988.

                                      -6-


                               SECURITY OWNERSHIP

     Ownership of Kronos Worldwide.  The following table and footnotes set forth
as of the Record Date the beneficial ownership, as defined by regulations of the
SEC, of Common  Stock held by each  individual,  entity or group known to Kronos
Worldwide to own beneficially  more than 5% of the outstanding  shares of Common
Stock, each director,  each executive officer named in the summary  compensation
table in this proxy  statement (a "named  executive  officer") and all directors
and  executive  officers  as a group.  See  footnote  (4) below for  information
concerning the  relationships  of certain  individuals  and entities that may be
deemed to own indirectly and beneficially more than 5% of the outstanding shares
of Common Stock.  All information is taken from or based upon ownership  filings
made by such individuals or entities with the SEC or upon  information  provided
by such individuals or entities.




                                                             Kronos Worldwide Common Stock
                                                     ----------------------------------------------
                                                        Amount and Nature of        Percent of
          Name of Beneficial Owner                    Beneficial Ownership (1)     Class (1)(2)
---------------------------------------------------- ---------------------------- -----------------
                                                                            
Harold C. Simmons (3)..............................            4,255 (4)(5)              *
    Valhi, Inc. (3)................................       27,840,953 (4)(5)            56.9%
    NL Industries, Inc (3).........................       17,550,532 (4)(5)            35.9%
    TIMET Finance Management Company (3)...........            5,203 (4)(5)              *
    Annette C. Simmons (3).........................           36,356 (4)(5)              *
                                                     ---------------
                                                          45,437,299 (4)(5)            92.8%

Keith R. Coogan....................................              -0-                    -0-
Cecil H. Moore, Jr.................................              512 (4)                -0-
George E. Poston...................................            1,500                     *
Glenn R. Simmons...................................              208 (4)(5)              *
Dr. R. Gerald Turner...............................            1,036 (5)                 *
Steven L. Watson...................................            4,233 (4)(5)              *
Dr. Ulfert Fiand...................................              -0-                    -0-
H. Joseph Maas.....................................              -0-                    -0-
Douglas C. Weaver..................................              -0-                    -0-
All directors and 
 executive officers
 as a group (15 persons)...........................       45,444,788 (4)(5)            92.8%



--------------------
*    Less than 1%.

(1)  Except as otherwise noted,  the listed entities,  individuals or group have
     sole  investment  power and sole  voting  power as to all  shares set forth
     opposite their names.  The number of shares and percentage of ownership for
     each  entity,  individual  or group  assumes  the  receipt by such  entity,
     individual or group of shares that such entity, individual or group has the
     right to receive  within 60 days  subsequent  to the Record  Date,  if such
     number of shares is determinable.

(2)  The percentages are based on 48,946,049  shares of Common Stock outstanding
     as of the Record Date.

(3)  The business  address of Valhi,  NL and Harold C. and Annette C. Simmons is
     Three  Lincoln  Centre,  5430  LBJ  Freeway,   Suite  1700,  Dallas,  Texas
     75240-2697.  The  business  address  of TIMET  Finance  Management  Company
     ("TFMC") is 300 Delaware Avenue, Suite 900, Wilmington, Delaware 19801.

(4)  Valhi and TFMC are the direct  holders of  approximately  83.1% and 0.5% of
     the  outstanding  shares of NL  Common  Stock,  respectively.  TIMET is the
     direct  holder of 100% of the  outstanding  shares of common stock of TFMC.
     Tremont LLC ("Tremont"), Annette C. Simmons, The Combined Master Retirement
     Trust (the "CMRT") and Valhi are the holders of approximately 39.5%, 14.3%,
     12.0% and 2.4% of the outstanding  shares of TIMET common stock,  par value
     $0.01  per  share  ("TIMET  Common  Stock").  Valhi is the sole  member  of
     Tremont.  The ownership of Ms. Simmons is based on the 1,600,000  shares of
     TIMET's 6 3/4% Series A Convertible  Preferred  Stock,  par value $0.01 per
     share (the "TIMET Series A Preferred Stock"), that she directly owns, which
     are convertible  into 2,666,666 shares of TIMET Common Stock. The ownership
     of Valhi  includes  24,500  shares of TIMET Common Stock that Valhi has the
     right to  acquire  upon  conversion  of  14,700  shares  of TIMET  Series A
     Preferred  Stock that Valhi directly  holds.  The  percentage  ownership of
     TIMET Common Stock held by each of Ms.  Simmons and Valhi  assumes the full
     conversion  of only the  shares of TIMET  Series A  Preferred  Stock she or
     Valhi owns, respectively.

                                      -7-


     Valhi Group, Inc. ("VGI"), National City Lines, Inc. ("National"), Contran,
     the  Harold  Simmons  Foundation,  Inc.  (the  "Foundation"),  the  Contran
     Deferred  Compensation  Trust No. 2 (the "CDCT No. 2") and the CMRT are the
     direct holders of  approximately  77.6%,  9.1%,  3.7%, 0.9%, 0.4% and 0.1%,
     respectively,  of the outstanding  shares of Valhi Common Stock.  National,
     NOA,  Inc.  ("NOA") and Dixie  Holding  Company  ("Dixie  Holding") are the
     direct holders of approximately  73.3%, 11.4% and 15.3%,  respectively,  of
     the outstanding common stock of VGI. Contran and NOA are the direct holders
     of approximately 85.7% and 14.3%,  respectively,  of the outstanding common
     stock of National.  Contran and  Southwest  Louisiana  Land  Company,  Inc.
     ("Southwest")  are the  direct  holders of  approximately  49.9% and 50.1%,
     respectively,   of  the  outstanding   common  stock  of  NOA.  Dixie  Rice
     Agricultural Corporation,  Inc. ("Dixie Rice") is the direct holder of 100%
     of the outstanding common stock of Dixie Holding.  Contran is the holder of
     100% of the outstanding common stock of Dixie Rice and approximately  88.9%
     of the outstanding common stock of Southwest.

     Substantially all of Contran's  outstanding  voting stock is held by trusts
     established for the benefit of certain children and grandchildren of Harold
     C. Simmons (the  "Trusts"),  of which Mr.  Simmons is the sole trustee,  or
     held by Mr. Simmons or persons or other entities related to Mr. Simmons. As
     sole  trustee of the Trusts,  Mr.  Simmons has the power to vote and direct
     the  disposition  of the shares of Contran  stock held by the  Trusts.  Mr.
     Simmons, however,  disclaims beneficial ownership of any Contran shares the
     Trusts hold.

     The Foundation  directly holds approximately 0.9% of the outstanding shares
     of Valhi Common Stock. The Foundation is a tax-exempt  foundation organized
     for charitable purposes.  Harold C. Simmons is the chairman of the board of
     the Foundation.

     The CDCT No. 2 directly holds  approximately 0.4% of the outstanding shares
     of Valhi Common Stock. U.S. Bank National Association serves as the trustee
     of the CDCT No. 2.  Contran  established  the CDCT No. 2 as an  irrevocable
     "rabbi trust" to assist Contran in meeting  certain  deferred  compensation
     obligations that it owes to Harold C. Simmons. If the CDCT No. 2 assets are
     insufficient to satisfy such obligations,  Contran must satisfy the balance
     of such  obligations.  Pursuant  to the  terms of the CDCT No.  2,  Contran
     retains  the  power to vote the  shares  held by the  CDCT No.  2,  retains
     dispositive  power  over  such  shares  and  may  be  deemed  the  indirect
     beneficial owner of such shares.

     The CMRT directly holds  approximately  12.0% of the outstanding  shares of
     TIMET  Common  Stock and 0.1% of the  outstanding  shares  of Valhi  Common
     Stock.  Valhi  established the CMRT to permit the collective  investment by
     master trusts that maintain assets of certain  employee benefit plans Valhi
     and related  companies adopt.  Harold C. Simmons is the sole trustee of the
     CMRT and a member of the trust investment  committee for the CMRT.  Valhi's
     board of directors  selects the trustee and members of the trust investment
     committee  for the CMRT.  Harold C. Simmons,  Glenn R.  Simmons,  Steven L.
     Watson,  H. Joseph  Maas,  Douglas C. Weaver and  certain  other  executive
     officers  of  Kronos  Worldwide  are  participants  in one or  more  of the
     employee  benefit plans that invest through the CMRT.  Each of such persons
     disclaims  beneficial ownership of any of the shares the CMRT holds, except
     to the extent of his or her individual vested beneficial interest,  if any,
     in the assets the CMRT holds.

     Harold C. Simmons is the chairman of the board and chief executive  officer
     of each of Kronos Worldwide and NL, vice chairman of the board of TIMET and
     the chairman of the board of each of Tremont,  Valhi, VGI,  National,  NOA,
     Dixie Holding, Dixie Rice, Southwest and Contran.

                                      -8-


     By virtue of the  holding  of the  offices,  the  stock  ownership  and his
     services as trustee,  all as described  above, (a) Harold C. Simmons may be
     deemed to control  certain of such entities and (b) Mr. Simmons and certain
     of such entities may be deemed to possess indirect beneficial  ownership of
     shares  directly  held by  certain  of such other  entities.  However,  Mr.
     Simmons disclaims  beneficial  ownership of the shares  beneficially owned,
     directly or indirectly,  by any of such  entities,  except to the extent of
     his vested beneficial interest,  if any, in shares held by the CMRT and his
     interest as a beneficiary of the CDCT No. 2. Mr. Harold  Simmons  disclaims
     beneficial  ownership  of all shares of Common Stock that NL, Valhi or TFMC
     directly holds.

     All  directors  or  executive  officers  of Kronos  Worldwide  who are also
     directors  or  executive  officers  of NL,  Valhi,  TFMC  or  their  parent
     companies disclaim beneficial  ownership of the shares of Common Stock that
     NL, Valhi or TFMC directly hold.

     Annette  C.  Simmons  is the wife of Harold C.  Simmons.  She is the direct
     owner of 35,976 shares of Common Stock.  Mr. Simmons may be deemed to share
     indirect  beneficial  ownership of such shares.  Mr. Simmons  disclaims all
     such beneficial ownership.

     The Annette C. Simmons  Grandchildren's  Trust,  a trust of which Harold C.
     Simmons and Annette C. Simmons are  co-trustees  and the  beneficiaries  of
     which are the grandchildren of Annette C. Simmons,  is the direct holder of
     40,000  shares of Valhi Common  Stock (the  "Grandchildren's  Trust").  Mr.
     Simmons, as co-trustee of the Grandchildren's  Trust, has the power to vote
     and  direct  the   disposition   of  the  shares  Valhi  Common  Stock  the
     Grandchildren's  Trust directly  holds.  Mr. Simmons  disclaims  beneficial
     ownership  of any shares of Valhi  Common  Stock  that the  Grandchildren's
     Trust holds.

     NL and a subsidiary of NL directly hold  3,522,967 and 1,186,200  shares of
     Valhi Common  Stock,  respectively.  NL is a majority  owned  subsidiary of
     Valhi.  Pursuant to Delaware  law,  Valhi treats the shares of Valhi Common
     Stock  that NL and NL's  subsidiary  directly  hold as  treasury  stock for
     voting purposes,  and for purposes of calculating the percentage  ownership
     of the  outstanding  shares of Valhi  Common Stock as of the Record Date in
     this proxy statement such shares are not deemed outstanding.

     The business address of Tremont,  VGI,  National,  NOA, Dixie Holding,  the
     Foundation, the CMRT and Contran is Three Lincoln Centre, 5430 LBJ Freeway,
     Suite 1700, Dallas, Texas 75240-2697. The business address of Dixie Rice is
     600 Pasquiere  Street,  Gueydan,  Louisiana  70542. The business address of
     Southwest is 402 Canal Street, Houma, Louisiana 70360. The business address
     of TIMET is 1999 Broadway, Suite 4300, Denver, Colorado 80202.

(5)  Includes  (excludes) the following  shares of Common Stock that such entity
     or individual received or distributed,  as applicable, on March 29, 2005 in
     a  dividend  NL  declared  that was paid in the form of  shares  of  Kronos
     Worldwide Common Stock, reported without duplication:




                                                    Number of Shares of Common
                                                   Stock Received (Distributed)
                                                   in NL Stock Dividend Paid on
            Name of Beneficial Owner                      March 29, 2005
     ----------------------------------------      -----------------------------
                                                
     Harold C. Simmons.......................                     145
     Valhi, Inc..............................                 221,319
     NL Industries, Inc......................                (266,229)
     TIMET Finance Management Company........                   1,218
     Annette C. Simmons......................                     380
     Glenn R. Simmons........................                      32
     R. Gerald Turner........................                       5
     Steven L. Watson........................                      42



                                      -9-


     Kronos Worldwide understands that Contran and related entities may consider
acquiring  or  disposing  of shares  of  Common  Stock  through  open-market  or
privately   negotiated   transactions,   depending  upon  future   developments,
including,  but not limited to, the  availability and alternative uses of funds,
the performance of Common Stock in the market,  an assessment of the business of
and prospects for Kronos  Worldwide,  financial and stock market  conditions and
other factors deemed relevant by such entities.  Kronos  Worldwide may similarly
consider acquisitions of shares of Common Stock and acquisitions or dispositions
of securities issued by related entities.

     Ownership of Related  Companies.  Certain  Kronos  Worldwide  directors and
executive  officers own equity  securities of certain Kronos  Worldwide  related
companies. The following table and footnotes set forth the beneficial ownership,
as of the Record  Date,  of the shares of NL and Valhi Common Stock held by each
director,  each named executive officer and all directors and executive officers
as a group.  All information is taken from or based upon ownership  filings made
by such  individuals  or entities with the SEC or upon  information  provided by
such individuals or entities.




                                                      NL                                      Valhi
                                                 Common Stock                              Common Stock
                                   --------------------------------------   ------------------------------------
                                        Amount and                              Amount and
                                   Nature of Beneficial     Percent of      Nature of Beneficial      Percent of
Name of Beneficial Owner                Ownership (1)      Class (1)(2)        Ownership (1)         Class (1)(3)
------------------------           ---------------------  ---------------   ------------------       -----------
                                                                                          
Harold C. Simmons...........             30,800  (4)(5)          *                  3,383  (4)             *
  Valhi, Inc................         40,350,931  (4)           83.1%                  n/a                 n/a
  TIMET Finance Management
    Company.................            222,100  (4)             *                    -0-                 -0-
  Valhi Group, Inc..........                -0-  (4)            -0-            92,739,554  (4)           77.6%
  National City Lines, Inc..                -0-  (4)            -0-            10,891,009  (4)            9.1%
  Contran Corporation.......                -0-  (4)            -0-             4,864,300  (4)(6)         4.1%
  Harold Simmons Foundation,
    Inc.....................                -0-  (4)            -0-             1,044,200  (4)             *
  The Combined Master
    Retirement Trust........                -0-  (4)            -0-               115,000  (4)             *
  Annette C. Simmons........             69,475  (4)             *                 43,400  (4)             *
  Annette C. Simmons
    Grandchildren's Trust...               -0-   (4)            -0-                40,000  (4)             *
                                   ------------                             -------------
                                     40,673,306                83.8%          109,740,846                 91.8%

Keith R. Coogan.............                -0-                 -0-                   -0-                 -0-
Cecil H. Moore, Jr..........                -0-                 -0-                   -0-                 -0-
George E. Poston............                -0-                 -0-                   -0-                 -0-
Glenn R. Simmons............              8,000  (4)(5)          *                 18,247  (4)(7)          *
Dr. R. Gerald Turner........              1,000  (5)             *                    -0-                 -0-
Steven L. Watson............             12,000  (4)(5)          *                117,246  (4)(5)          *
Dr. Ulfert Fiand............                -0-                 -0-                   -0-                 -0-
H. Joseph Maas..............              1,000  (5)             *                    -0-                 -0-
Douglas C. Weaver...........              6,800  (5)             *                    -0-                 -0-
All  directors and executive
  officers     of     Kronos
  Worldwide  as a group  (15
  persons)..................         40,702,106  (4)(5)        83.8%          110,044,105  (4)(5)(6)(7)  91.9%



--------------------
*    Less than 1%.

                                      -10-


(1)  Except as otherwise noted,  the listed entities,  individuals or group have
     sole  investment  power and sole  voting  power as to all  shares set forth
     opposite their names.  The number of shares and percentage of ownership for
     each  individual,  entity or group assumes the exercise by such individual,
     entity  or  group   (exclusive  of  others)  of  stock  options  that  such
     individual,  entity or group may exercise  within 60 days subsequent to the
     Record Date.

(2)  The  percentages  are  based  on  48,547,134  shares  of  NL  Common  Stock
     outstanding as of the Record Date.

(3)  The  percentages  are based on  119,535,878  shares of Valhi  Common  Stock
     outstanding  as of  the  Record  Date.  For  purposes  of  calculating  the
     outstanding  shares of Valhi Common Stock as of the Record Date,  3,522,967
     and  1,186,200  shares of Valhi Common Stock held by NL and a subsidiary of
     NL,  respectively,  are treated as treasury  stock for voting  purposes and
     excluded from the amount of Valhi Common Stock outstanding.

(4)  See  footnote  (4) to the  "Ownership  of  Kronos  Worldwide"  table  for a
     description of certain  relationships  among the  individuals,  entities or
     groups  appearing in this table.  All  directors  or executive  officers of
     Kronos  Worldwide  who are also  directors or executive  officers of Valhi,
     TFMC,  VGI,  National,  Contran,  the Foundation or their parent  companies
     disclaim  beneficial  ownership  of the shares of NL or Valhi  Common Stock
     that such entities directly hold. Based on the  relationships  described in
     footnote (4) to the  "Ownership  of Kronos  Worldwide"  table,  these share
     amounts exclude certain shares that such individual, entity or group may be
     deemed  to  indirectly  and  beneficially  own and as to  which  each  such
     individual, entity or group disclaims beneficial ownership.

     Harold C. Simmons disclaims  beneficial ownership of any and all securities
     that his wife, Annette C. Simmons, directly holds.

(5)  The shares of NL Common Stock or Valhi  Common Stock shown as  beneficially
     owned by such person or group include the  following  number of shares such
     person or group has the right to acquire upon the exercise of stock options
     granted  pursuant  to NL or Valhi  stock  option  plans that such person or
     group may exercise within 60 days subsequent to the Record Date:




                                                    Shares of NL Common Stock     Shares of Valhi Common Stock
                                                   Issuable Upon the Exercise      Issuable Upon the Exercise
                                                        of Stock Options                of Stock Options
              Name of Beneficial Owner               On or Before May 27, 2005      On or Before May 27, 2005
     ------------------------------------------   -----------------------------  -----------------------------
                                                                           
     Harold C. Simmons........................                4,000                              -0-
     Glenn R. Simmons.........................                2,000                              -0-
     Steven L. Watson.........................                4,000                          100,000
     H. Joseph Maas...........................                1,000                              -0-
     Douglas C. Weaver........................                6,800                              -0-
     All directors  and executive  officers as a
       group (15 persons).....................               17,800                          266,600



(6) Includes 439,400 shares of Valhi Common Stock the CDCT No. 2 directly holds.

(7)  The shares of Valhi  Common Stock shown as  beneficially  owned by Glenn R.
     Simmons include 800 shares his wife holds in her retirement  account,  with
     respect to which shares he disclaims beneficial ownership.

                                      -11-


                COMPENSATION OF DIRECTORS AND EXECUTIVE OFFICERS
                              AND OTHER INFORMATION

     Compensation of Directors.  In 2004,  directors received an annual retainer
of $20,000,  paid in  quarterly  installments,  plus a fee of $1,000 per day for
attendance  at meetings  and at a daily rate ($125 per hour) for other  services
rendered on behalf of the Board of  Directors or its  committees.  For the first
two quarters of 2004, directors also received an annual retainer of $2,000, paid
in quarterly  installments,  for each  committee on which they served.  Starting
with the third  quarter of 2004,  the Board of Directors  increased the director
fees paid to  members  of the audit  committee.  The  increase  resulted  in the
chairman  of the audit  committee  and any  member of the  committee  who Kronos
Worldwide  identified as an "audit committee  financial  expert" for purposes of
the annual  proxy  statement  receiving an annual  retainer of $10,000,  paid in
quarterly  installments  (provided that if one person served in both  capacities
only one such  retainer  was paid),  and other  members  of the audit  committee
receiving an annual retainer of $5,000, paid in quarterly  installments.  If any
director  dies while serving on the Board of  Directors,  his or her  designated
beneficiary  or estate will be entitled to receive a death  benefit equal to the
annual retainer then in effect.  Kronos  Worldwide  reimburses its directors for
reasonable  expenses  incurred in attending  meetings and in the  performance of
other services rendered on behalf of the Board of Directors or its committees.

     On the day of each annual  stockholder  meeting,  each director  receives a
grant of shares of Common Stock as determined by the following  formula based on
the closing price of a share of Common Stock on the date of such meeting.




       Range of Closing Price Per                    Shares of Common
       Share on the Date of Grant                   Stock to Be Granted
       --------------------------                   -------------------
                                                 
         Under $5.00                                       2,000
         $5.00 to $9.99                                    1,500
         $10.00 to $20.00                                  1,000
         Over $20.00                                         500



As a result of  the $30.01 per share  closing  price  of Common Stock on May 20,
2004, the date of the 2004 annual stockholder meeting, each  director elected on
that date received a grant of 500 shares of Common Stock.

     Intercorporate   Services   Agreements.   Contran   and   certain   of  its
subsidiaries,  including  Kronos  Worldwide,  have entered  into  intercorporate
services agreements (collectively,  the "ISAs") pursuant to which Contran, among
other things,  provides the services of certain of the named executive  officers
to  certain  of  Contran's  subsidiaries,  including  Kronos  Worldwide  and its
subsidiaries.  For a discussion of these ISAs,  see "Certain  Relationships  and
Transactions--Intercorporate Services Agreement."

                                      -12-


     Summary of Cash and Certain Other Compensation of Executive  Officers.  The
summary  compensation  table below provides  information  concerning  annual and
long-term  compensation paid or accrued by Kronos Worldwide and its subsidiaries
for services rendered to Kronos Worldwide and its subsidiaries during 2004, 2003
and 2002 by Kronos  Worldwide's chief executive officer and four other executive
officers with the highest total salary and bonus, or charge to Kronos  Worldwide
or its subsidiaries pursuant to an ISA between Kronos Worldwide and Contran (the
"Contran ISA"), in 2004.




                         SUMMARY COMPENSATION TABLE (1)

                                                                 Annual Compensation (2) 
                    Name and                              -------------------------------------     All Other
               Principal Position                  Year         Salary              Bonus          Compensation
-----------------------------------------------   ------  -----------------   -----------------  -----------------
                                                                                     
Harold C. Simmons (3)..........................    2004   $     988,005 (3)   $        -0- (3)   $         -0-
Chairman  of  the  Board  and  Chief  Executive    2003         190,000 (3)            -0- (3)             -0-
Officer

Steven L. Watson (3)...........................    2004         363,905 (3)            -0- (3)             -0-
Vice Chairman of the Board

Dr. Ulfert Fiand...............................    2004         209,664 (4)        153,044 (4)(5)          -0-
President, Manufacturing and Technology            2003         173,786 (4)        121,650 (4)(5)          -0-
                                                   2002         128,827 (4)         89,388 (4)(5)          -0-

H. Joseph Maas.................................    2004         223,000            162,800 (5)          20,531 (6)
President, Sales and Marketing

Douglas C. Weaver..............................    2004         166,750             78,400 (5)          27,555 (6)
Senior Vice President, Development


----------------------

(1)  For the  periods  presented  for each  named  executive  officer,  no stock
     options  or shares of  restricted  stock  were  granted  nor  payouts  made
     pursuant to  long-term  incentive  plans.  Therefore,  the columns for such
     compensation have been omitted.

(2)  Other than Dr. Fiand,  no named  executive  officer  received "other annual
     compensation,"  as defined  by SEC  rules,  from  Kronos  Worldwide  or its
     subsidiaries.  For each of the three years presented, Dr. Fiand received an
     annual  automobile  allowance  that is less than the amount  required to be
     reported  pursuant  to SEC rules.  Therefore,  the column for other  annual
     compensation has been omitted.

(3)  Messrs.  Simmons and Watson are employees of Contran.  The amounts shown in
     the summary  compensation table as salary for them represent the portion of
     the fees Kronos  Worldwide and  subsidiaries  paid pursuant to certain ISAs
     with  respect to the services  they  rendered to Kronos  Worldwide  and its
     subsidiaries.  During  2003,  Mr.  Simmons  provided his services to Kronos
     Worldwide pursuant to a Services Agreement between NL, Kronos Worldwide and
     KII dated as of  January  1, 1995 and  amended as of April 1, 2002 (the "NL
     ISA"). Other than Mr. Simmons, the charges for executive officers' services
     under  the NL ISA for  2003  to  Kronos  Worldwide  were  not  specifically
     identifiable to a particular  executive  officer or did not exceed $100,000
     and were not  allocable  between  Kronos  Worldwide  and KII.  During 2004,
     Messrs.  Simmons and Watson  provided  their  services to Kronos  Worldwide
     pursuant to the Contran ISA.


                                      -13-


     The  components  of  salary  shown in the  summary  compensation  table for
     Messrs. Simmons and Watson are provided below. The Contran ISA fee for 2004
     included  amounts  allocated to KII under the Contran ISA. The amount shown
     in the table as salary for each of Messrs. Simmons and Watson also includes
     director compensation paid to each of them by Kronos Worldwide.




                                                                 2003                     2004
                                                       -----------------------  -----------------------
                                                                          
     Harold C. Simmons
       Contran ISA Fee..............................   $           190,000 (a)  $           950,000 (a)
       Kronos Worldwide Cash Director Fees..........                   -0-                   23,000
       Kronos Worldwide Director Stock..............                   -0-                   15,005
                                                         -----------------        -----------------
                                                       $           190,000      $           988,005
                                                         =================        =================

     Steven L. Watson
       Contran ISA Fee..............................                            $           325,900 (a)
       Kronos Worldwide Cash Director Fees..........                                         23,000
       Kronos Worldwide Director Stock..............                                         15,005
                                                                                  -----------------
                                                                                $           363,905
                                                                                  =================



     (a)  Mr.  Simmons  became an  executive  officer of Kronos  Worldwide as of
          August 6,  2003.  Mr.  Watson  became an  executive  officer of Kronos
          Worldwide as of October 8, 2004.

(4)  Dr. Fiand receives his cash compensation in euros. Kronos Worldwide reports
     these amounts in the summary compensation table above in U.S. dollars based
     on an average  exchange  rate for each of 2004,  2003 and 2002 of  $1.2347,
     $1.1212 and $0.9360 per (euro)1.00, respectively.

(5)  Represents  amounts Kronos  Worldwide  paid pursuant to Kronos  Worldwide's
     share-in-performance  plan.  For a description of this plan, see "Executive
     Compensation Report."

(6)  As shown below, all other  compensation for 2004 for Messrs Maas and Weaver
     consisted of (i) matching  contributions  Kronos  Worldwide made or accrued
     pursuant to the savings  feature of the NL savings  plan,  (ii)  retirement
     contributions  Kronos  Worldwide made or accrued pursuant to the NL savings
     plan and (iii) life insurance premiums Kronos Worldwide paid.




                                                                  NL Savings
                                                  NL Savings         Plan           Life
                                                    Plan          Retirement      Insurance
         Named Executive Officer       Year         Match        Contributions     Premiums        Total
     ------------------------------   ------      ----------     -------------    ---------      ---------
                                                                                  
     H. Joseph Maas................    2004       $  7,432         $  11,275       $  1,824      $ 20,531

     Douglas C. Weaver.............    2004          8,200            16,400          2,955        27,555



                                      -14-


     No Grants of Stock Options or Stock  Appreciation  Rights.  Neither  Kronos
Worldwide  nor any of its parent or  subsidiary  corporations  granted any stock
options or stock  appreciation  rights ("SARs") to the named executive  officers
during 2004.

     Stock  Option   Exercises  and  Holdings.   The  following  table  provides
information with respect to each of the named executive officers  concerning the
aggregate amount the named executive  officer realized in 2004 upon the exercise
of stock options for NL Common Stock and the value of unexercised  stock options
for Valhi and NL Common Stock such officer held as of December 31, 2004. Neither
Kronos  Worldwide nor any of its parent or subsidiary  companies has granted any
SARs nor has Kronos Worldwide granted any stock options.



                  AGGREGATE STOCK OPTION EXERCISES IN 2004 AND
                         DECEMBER 31, 2004 OPTION VALUES




                                                   Number of Shares
                        Shares                        Underlying              Value of Unexercised
                       Acquired                  Unexercised Options at       In-the-Money Options
                          on                      December 31, 2004 (#)      at December 31, 2004 (1)
                       Exercise    Value       ---------------------------  ---------------------------
     Name                 (#)     Realized     Exercisable   Unexercisable  Exercisable   Unexercisable
------------------     --------  ---------     ------------ --------------  ------------ --------------
                                                                       
Harold C. Simmons
  NL Stock Options....     -0-   $    -0-           6,000          -0-      $  86,829      $   -0-

Steven L. Watson
  Valhi Stock Options.     -0-        -0-         100,000          -0-        815,000          -0-
  NL Stock Options....     -0-        -0-           4,000          -0-         54,254          -0-
                       -------   --------      ----------   ----------      ---------    --------- 
                           -0-        -0-         104,000          -0-        869,254          -0-

Dr. Ulfert Fiand
  NL Stock Options....   7,000     62,533  (2)      3,600        3,400         38,214       41,951

H. Joseph Maas
  NL Stock Options....  11,800     93,525  (2)      3,600        3,400         38,214       41,951

Douglas C. Weaver
  NL Stock Options....  14,400    127,852  (2)      5,400        2,200         76,682       26,869


-------------------- 

(1)  Each aggregate value is based on the difference  between the exercise price
     of the  individual  stock  options and the closing sales price per share of
     such  underlying  common  stock on December 31,  2004.  Such closing  sales
     prices  were $16.09 per share for Valhi  Common  Stock and $22.10 per share
     for NL Common Stock.

(2)  The amount  realized for each exercise is based on the  difference  between
     the same-day sales price per share of the underlying NL Common Stock issued
     upon exercise and the exercise price per share.

     Pension Plans. The Retirement  Program of NL Industries,  Inc. for its U.S.
employees (the "Pension Plan") provides lifetime retirement benefits to eligible
employees.  In 1996, NL approved the suspension of all future accruals under the
salaried  component of the Pension Plan.  The estimated  accrued  annual benefit
payable  under the Pension Plan upon  retirement  at normal  retirement  age for
Messrs. Maas and Weaver is $26,778 and $32,527, respectively.

     Dr. Fiand is eligible to receive a pension through KII's German  operations
("Kronos Germany") through the Bayer Pensionskasse and the Supplemental  Pension
Promise.  All of KII's  employees in Germany  (including  wage earners) who have
contributed  for five years and are less than 55 years of age are covered by the
Bayer Pensionskasse. Each employee contributes 2% of eligible earnings excluding
bonus, up to the social security  contribution ceiling (currently  (euro)62,400)
and the  Bayer  Pensionskasse  provides  a  benefit  of 44% of  such  employee's
accumulated  contributions (with a minimum benefit of approximately (euro)13 per
month).  The  Supplemental  Pension  Promise also covers all employees of Kronos
Germany who have completed ten years of service.  Kronos Germany  accrues 11.25%
of  participants'  eligible  annual  earnings  excluding  bonus in excess of the
social security  contribution  ceiling,  up to a maximum of  (euro)109,200.  The
Supplemental Pension Promise provides an annual retirement benefit of 20% of all
accruals  made by Kronos  Germany.  Benefits  for both  plans are  payable  upon
retirement and the  attainment of ages  specified in the plans.  No amounts were
paid or  distributed  under these plans to Dr. Fiand in 2004. As of December 31,
2004, the estimated  accrued annual  benefit  payable upon normal  retirement at
normal retirement age for Dr. Fiand is (euro)27,588.

                                      -15-


     Chief Operations Management Consultant.  Following his resignation as chief
executive  officer of Kronos  Worldwide  in July 2003,  Dr.  Lawrence  A. Wigdor
entered into a consultancy  arrangement with Kronos Worldwide  pursuant to which
Dr. Wigdor provides ongoing management  services to Kronos Worldwide's  titanium
dioxide  operations.  Dr. Wigdor received $461,000 on August 1, 2003 and monthly
payments of $84,000 beginning on August 1, 2003. On February 1, 2004, Dr. Wigdor
received a payment under the  arrangement of $461,000 based on Kronos  Worldwide
having  achieved  2003  segment  profit (as Kronos  Worldwide  defines that term
internally)  of in excess of $130  million.  For 2004,  Dr.  Wigdor  received an
annual discretionary bonus of $1.0 million. For the term of the arrangement, Dr.
Wigdor will receive  annual  discretionary  bonuses as  determined  by the chief
executive  officer.  Under the consultancy  arrangement,  as amended in February
2004,  if Kronos  Worldwide  terminates  the  consultancy  arrangement  prior to
December 31,  2006,  Dr.  Wigdor will receive  twelve  months  compensation  and
medical and dental coverage  through December 31, 2006 and a pro-rata portion of
any bonus for the year in which the termination occurs. The arrangement provides
Dr. Wigdor various other  benefits,  including,  medical and dental benefits and
office and secretarial support at Kronos Worldwide's New Jersey office.

     In January 2004, NL paid Dr.  Wigdor  approximately  $408,500 to repurchase
and cancel  previously  granted stock options he held that were  exercisable  at
varying  exercise  prices for an aggregate of 63,800  shares of NL Common Stock.
The purchase price was determined  based on a value of the underlying  shares of
NL Common Stock of $12.70 per share.

     In addition,  during 2004, Dr. Wigdor  exercised  previously  granted stock
options for 148,500  shares of NL Common Stock and  realized an aggregate  value
from the sale of such  shares  of  $721,732.  The  amount he  realized  upon the
exercise of stock  options is based on the  difference  between his sales prices
per share of NL Common Stock on the day of each exercise and the exercise  price
per share.  At December 31, 2004, Dr. Wigdor held  exercisable  stock options to
purchase  41,300  shares of NL Common Stock and  unexercisable  stock options to
purchase 60,000 shares of NL Common Stock.  Based on the difference  between the
exercise price of his individual  stock options and the $22.10 per share closing
sales  price  of NL  Common  Stock  on  December  31,  2004,  the  value  of his
exercisable  and  unexercisable  stock  options to purchase NL common  stock was
$382,636 and $754,100, respectively.

     Following his  resignation  in July 2003, Dr. Wigdor elected to receive his
retirement  benefits under the Pension Plan at an early retirement age. He began
receiving a monthly payment amount of $2,428 in August 2003, which will continue
for the remainder of his life.

     During 2004, Dr. Wigdor's  sister-in-law  was employed by Kronos  Worldwide
and was paid $43,300 and received customary employee benefits, including medical
insurance.  She  continues  to be  employed by Kronos  Worldwide.  Additionally,
during 2004, Kronos Worldwide employed Dr. Wigdor's son and paid him $74,550.

                                      -16-


                      EQUITY COMPENSATION PLAN INFORMATION

     The following  table provides  summary  information as of December 31, 2004
with respect to equity  compensation plans under which Kronos Worldwide's equity
securities  may be issued  to  employees  or  nonemployees  (such as  directors,
consultants,  advisers, vendors,  customers,  suppliers and lenders) in exchange
for goods or services.



                                         Column (A)                   Column (B)                   Column (C)
                                --------------------------    -------------------------    -------------------------
                                                                                             Number of Securities
                                                                                            Remaining Available for
                                                                                             Future Issuance Under
                                Number of Securities to be    Weighted-Average Exercise    Equity Compensation Plans
                                  Issued Upon Exercise of       Price of Outstanding         (Excluding Securities
                                    Outstanding Options,              Options,                   Reflected in
        Plan Category               Warrants and Rights         Warrants and Rights               Column (A))
---------------------------     --------------------------    -------------------------    -------------------------
                                                                                   
Equity  compensation  plans
approved     by    security
holders....................                   -0-                    $    -0-                       147,000

Equity  compensation  plans
not  approved  by  security
holders....................                   -0-                         -0-                           -0-

Total......................                   -0-                         -0-                       147,000



                         CORPORATE GOVERNANCE DOCUMENTS

     Code of Business Conduct and Ethics. Kronos Worldwide has adopted a code of
business conduct and ethics that applies to all of Kronos Worldwide's directors,
officers  and  employees,   including  Kronos  Worldwide's  principal  executive
officer,   principal  financial  officer,   principal   accounting  officer  and
controller.  Only the  Board of  Directors  may  amend  the  code.  Only  Kronos
Worldwide's  audit  committee or other  committee of the Board of Directors with
specific  delegated  authority may grant a waiver of the code.  Kronos Worldwide
will disclose  amendments to, or waivers of, the code as required by law and the
applicable rules of the NYSE.

     Corporate  Governance  Guidelines.  Kronos Worldwide has adopted  corporate
governance  guidelines  to  assist  the Board of  Directors  in  exercising  its
responsibilities.  Among  other  things,  the  corporate  governance  guidelines
provide   for    director    qualifications,    independence    standards    and
responsibilities,  approval  procedures  for ISAs and that the  audit  committee
chairman preside at all meetings of the independent directors.

     Audit Committee  Charter.  Kronos  Worldwide has adopted an audit committee
charter under which the audit committee operates.  Among other things, the audit
committee   charter   provides   the   purpose,    authority,    resources   and
responsibilities of the committee.

     A copy of each of these three  documents,  among  others,  is  available on
Kronos Worldwide's website at www.kronostio2.com  under the corporate governance
section.  In  addition,  any person may obtain a copy of these  three  documents
without  charge,  by  sending  a  written  request  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.

             SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

     Section  16(a) of the  Securities  Exchange  Act of 1934,  as amended  (the
"Exchange Act"), requires Kronos Worldwide's  executive officers,  directors and
persons who own more than 10% of a registered class of Kronos Worldwide's equity
securities  to file  reports  of  ownership  with the SEC,  the NYSE and  Kronos
Worldwide.  Based  solely  on the  review  of  the  copies  of  such  forms  and
representations by certain reporting persons, Kronos Worldwide believes that for
2004 its executive  officers,  directors and 10% stockholders  complied with all
applicable  filing  requirements  under  section  16(a),  except  that Harold C.
Simmons  filed a Form 4 on December 21, 2004 that reported two  transactions  by
his wife on March 2, 2004.

                                      -17-


                          EXECUTIVE COMPENSATION REPORT

     During  2004,  Kronos  Worldwide's   independent  directors  and  the  MD&C
Committee  administered matters regarding the compensation of Kronos Worldwide's
executive officers.

Contran ISA

     During  2004,  Kronos  Worldwide  paid certain fees to Contran for services
provided  pursuant to the Contran ISA,  including  the services of the following
executive officers of Kronos Worldwide:




        Name                         Positions with Kronos Worldwide
-----------------------    -----------------------------------------------------
                        
Harold C. Simmons          Chairman of the Board and Chief Executive Officer
Steven L. Watson           Vice Chairman of the Board
James W. Brown             Vice President and Controller
Robert D. Graham           Vice President, General Counsel and Secretary
Kelly D. Luttmer           Vice President and Tax Director
John A. St. Wrba           Vice President and Treasurer
Gregory M. Swalwell        Vice President, Finance and Chief Financial Officer



     Contran  annually  determines the aggregate fee to charge Kronos  Worldwide
and its subsidiaries based on (i) an estimate of the amount of time each Contran
employee that performs  services for Kronos Worldwide and its subsidiaries  will
spend on such  services  over the year and (ii)  Contran's  cost related to such
employee,  which includes the employee's base salary, incentive compensation and
an overhead component that takes into account other employment costs,  including
medical  benefits,  unemployment and disability  insurance and pension costs and
other  costs of  providing  an office,  equipment  and  supplies  related to the
provision of such  services.  The portion of the annual charge Kronos  Worldwide
pays under the Contran  ISA for the  services of any  particular  individual  is
capped at $1.0  million to enhance  Kronos  Worldwide's  ability to deduct  such
charge for federal income tax purposes.  The amount of the fee Kronos  Worldwide
paid in 2004 under the Contran ISA for a person who provided  services to Kronos
Worldwide or its subsidiaries  represents,  in management's view, the reasonable
equivalent of  "compensation"  for such services.  It is also  management's view
that the proposed  aggregate charge to Kronos Worldwide under the Contran ISA is
fair to Kronos Worldwide and its  stockholders.  See "Certain  Relationships and
Transactions--Intercorporate Services Agreement" for the aggregate amount Kronos
Worldwide  paid to  Contran  in 2004  under  the  Contran  ISA.  For each  named
executive officer that was a Contran employee in 2004, the portion of the annual
charge  Kronos  Worldwide  paid  in  2004  to  Contran  under  the  Contran  ISA
attributable  to the  services  of such  executive  officer  is set forth  under
footnote  (3) to the summary  compensation  table in this proxy  statement.  The
amount  charged under the Contran ISA is not dependent  upon Kronos  Worldwide's
financial performance.

     Based upon the  independent  directors'  review of Contran's ISA allocation
process and documentation as to how Contran determines the necessary  personnel,
the  estimated  number of full  time  employees  that are  required  to  provide
services and the cost of such  services  under the Contran ISA and their related
discussions  with  management,   the  independent  directors  agreed  that  such
aggregate 2004 charge from Contran under the Contran ISA was fair and reasonable
to Kronos  Worldwide and its  stockholders.  In making such  determination,  the
independent  directors  relied  on  their  collective  business  experience  and
judgment.

Other Executive Officers

     In 2004,  the MD&C Committee  administered  certain  matters  regarding the
compensation  of Ulfert Fiand,  H. Joseph Maas and Douglas C. Weaver,  executive
officers and employees of Kronos Worldwide or one of its subsidiaries. For 2004,
Kronos Worldwide's cash compensation for executive officers generally  consisted
of two primary  components:  base  salary and annual  operating  earnings  bonus
awards provided by Kronos Worldwide's Share-in-Performance Program.

                                      -18-


     Base Salaries.  Kronos Worldwide's management establishes base salaries for
executive  officers  employed  by  Kronos  Worldwide  or its  subsidiaries  on a
position-by-position  basis by  conducting  annual  internal  reviews  of salary
levels in an attempt to rank  salary  and job value to each  position.  The MD&C
Committee reviews changes in salaries,  including those for Messrs.  Fiand, Maas
and Weaver.  In 2004, the MD&C  Committee  reviewed an increase in base salaries
for Kronos Worldwide's  employees,  including Messrs. Fiand, Maas and Weaver, by
the expected  inflation  rate in the  applicable  country for the employee.  The
aggregate average percentage increase for 2004 in base salary was 2.0%.

     Bonuses.   Operating   earnings  bonus  awards  under  Kronos   Worldwide's
Share-in-Performance  Plan  constitute a  significant  portion of the  potential
annual cash  compensation  for  Messrs.  Fiand,  Maas and  Weaver.  Based on the
business plan for the year and  management's  recommendation,  in February 2004,
the MD&C Committee sets Kronos Worldwide's  year-end operating earnings goals at
three levels: a threshold level,  which is the minimum operating  earnings level
for any award to be made  under  the  Share-in-Performance  Plan  (the  "Minimum
Level"), a target level (the "Target Level"),  and a maximum level (the "Maximum
Level"). The chief executive officer, with the assistance of the Company's chief
operating  management  consultant  and chief  financial  officer,  selected  the
participants  in the Share-in  Performance  Plan and determined the bonus awards
for each participant that would be paid upon Kronos  Worldwide's  achievement of
the  operating  earnings  target at each  level.  An  executive  officer's  cash
compensation is designed to result in below competitive  compensation  levels if
the Minimum Level is not achieved.

     Pursuant to the Share-in-Performance Plan, if operating earnings fall below
the Minimum  Level,  no operating  earnings  bonus award is paid.  For 2004,  if
Kronos  Worldwide  achieved  operating  earnings  at 85% or higher of the Target
Level but did not  achieve  the Target  Level,  a  participant  would  receive a
reduced Target Level annual operating  earnings bonus award,  reduced by the pro
rata amount by which the  achieved  operating  earnings was less than the Target
Level. As a result of Kronos Worldwide  achieving 2004 operating earnings at the
Target Level,  Messrs.  Fiand,  Maas and Weaver received the operating  earnings
bonus  awards set forth  next to their name for 2004 in the bonus  column of the
summary compensation table in this proxy statement.

     Common Stock Based Compensation.  In 2004, the MD&C Committee  administered
matters  regarding  the Common Stock based  compensation  of Kronos  Worldwide's
executive officers.  In 2004,  however,  management did not recommend any Common
Stock  based  compensation  and the  MD&C  Committee  did  not  grant  any  such
compensation to any executive  officers other than annual stock grants to Kronos
Worldwide's  directors,  including  the  chief  executive  officer  and the vice
chairman of the board, for their services as directors.  The MD&C Committee does
not currently  anticipate  granting Common Stock based compensation to anyone in
2005 other than these annual grants of stock to directors.  See "Compensation of
Directors  and  Executive  Officers  and  Other   Information--Compensation   of
Directors."

Deductibility of Compensation

     Section  162(m) of the Code  generally  disallows a tax deduction to public
companies for  non-performance  based compensation over $1.0 million paid to the
company's  chief  executive  officer  and four  other  most  highly  compensated
executive  officers.  It is Kronos  Worldwide's  general policy to structure the
performance-based  portion of the  compensation  of its executive  officers in a
manner  that  enhances   Kronos   Worldwide's   ability  to  deduct  fully  such
compensation.

     The following individuals,  in the capacities indicated,  hereby submit the
foregoing report.

     R. Gerald Turner                           George E. Poston
     Chairman of the MD&C Committee and         Member of the MD&C Committee and
     Independent Director                       Independent Director

     Cecil H. Moore, Jr.
     Independent Director

                                      -19-

                     CERTAIN RELATIONSHIPS AND TRANSACTIONS

     Relationships   with  Related   Parties.   As  set  forth  under  "Security
Ownership," Harold C. Simmons,  through Contran, may be deemed to control Kronos
Worldwide.  Kronos  Worldwide  and  other  entities  that  may be  deemed  to be
controlled  by  or  affiliated  with  Mr.  Simmons   sometimes   engage  in  (a)
intercorporate  transactions such as guarantees,  management and expense sharing
arrangements,  shared fee arrangements,  tax sharing agreements, joint ventures,
partnerships,  loans,  options,  advances  of funds on open  account  and sales,
leases and exchanges of assets,  including securities issued by both related and
unrelated parties and (b) common investment and acquisition strategies, business
combinations,  reorganizations,  recapitalizations,  securities  repurchases and
purchases and sales (and other  acquisitions and  dispositions) of subsidiaries,
divisions or other business units, which transactions have involved both related
and  unrelated  parties  and have  included  transactions  that  resulted in the
acquisition by one related party of an equity interest in another related party.
Kronos Worldwide periodically  considers,  reviews and evaluates and understands
that Contran and related  entities  periodically  consider,  review and evaluate
such  transactions.  Depending upon the business,  tax and other objectives then
relevant and restrictions under indentures and other agreements,  it is possible
that Kronos  Worldwide  might be a party to one or more of such  transactions in
the future.  In connection with these  activities  Kronos Worldwide may consider
issuing  additional  equity  securities  or incurring  additional  indebtedness.
Kronos Worldwide's acquisition activities have in the past and may in the future
include  participation in acquisition or restructuring  activities  conducted by
other  companies that may be deemed to be controlled by Mr.  Simmons.  It is the
policy of Kronos  Worldwide to engage in  transactions  with related  parties on
terms, in the opinion of Kronos Worldwide, no less favorable to Kronos Worldwide
than could be obtained from unrelated parties.

     Certain directors or executive officers of Contran,  CompX,  Keystone,  NL,
TIMET  or  Valhi  also  serve as  directors  or  executive  officers  of  Kronos
Worldwide.  Such relationships may lead to possible conflicts of interest. These
possible  conflicts  of  interest  may arise from the duties of loyalty  owed by
persons  acting  as  corporate  fiduciaries  to  two  or  more  companies  under
circumstances  in which such companies may have adverse  interests.  No specific
procedures are in place that govern the treatment of  transactions  among Kronos
Worldwide  and its  related  entities,  although  such  entities  may  implement
specific  procedures as appropriate  for particular  transactions.  In addition,
under applicable  principles of law, in the absence of stockholder  ratification
or approval by directors who may be deemed disinterested, transactions involving
contracts  among  companies  under common  control must be fair to all companies
involved.  Furthermore,  directors owe  fiduciary  duties of good faith and fair
dealing to all stockholders of the companies for which they serve.

     Intercorporate  Services  Agreements.  Under  the  ISAs,  employees  of one
company will provide certain services,  including executive officer services, to
the other  company  on a fee basis.  The  services  rendered  under the ISAs may
include  executive,  management,  financial,  internal audit,  accounting,  tax,
legal,  insurance,  risk  management,   treasury,   aviation,  human  resources,
technical, consulting,  administrative,  office, occupancy and other services as
required from time to time in the ordinary course of the  recipient's  business.
The fees paid pursuant to the ISAs are  generally  based upon an estimate of the
time  devoted by employees of the provider of the services to the affairs of the
recipient and the employer's cost related to such employees,  which includes the
employees' cash  compensation and an overhead  component that takes into account
other employment costs of the employees.  Each of the ISAs in their current form
extends on a quarter-to-quarter  basis,  generally subject to the termination by
either party pursuant to a written  notice  delivered 30 days prior to the start
of the next quarter.  Because of the large number of companies  affiliated  with
Contran and Kronos  Worldwide,  Kronos Worldwide  believes it benefits from cost
savings  and  economies  of  scale  gained  by not  having  certain  management,
financial and  administrative  staffs  duplicated at each entity,  thus allowing
certain  individuals  to provide  services  to  multiple  companies  but only be
compensated  by one entity.  With  respect to a publicly  held company that is a
party to an ISA, the ISA and the related aggregate annual charge is reviewed and
approved by the independent directors of the company.

     Effective  January 1, 2004,  Kronos Worldwide entered into the Contran ISA.
Under the Contran ISA, Kronos Worldwide paid fees of approximately  $4.4 million
for services  provided in 2004. In 2005,  Kronos  Worldwide  anticipates  paying
Contran approximately $5.7 million for services to be provided under the Contran
ISA. Kronos  Worldwide also pays director fees and expenses  directly to Messrs.
Glenn and  Harold  Simmons  and Watson for their  services  as Kronos  Worldwide
directors.

                                      -20-


     Loans between Related Parties.  On the December 8, 2003,  immediately prior
to NL's distribution of 48.8% of the outstanding Common Stock,  Kronos Worldwide
distributed  a $200  million  dividend  to NL in the  form of a  long-term  note
payable.  The $200 million  long-term  note payable to NL was unsecured and bore
interest at 9% per annum,  with interest payable quarterly and all principal due
in 2010. On September 24, 2004,  NL completed  the  acquisition  of 68.4% of the
outstanding  shares of CompX class A and B common stock previously held by Valhi
and Valcor,  Inc., a wholly owned  subsidiary of Valhi  ("Valcor").  NL paid the
purchase price for these shares by transferring to Valhi and Valcor an aggregate
$168.6  million  of the $200  million  long-term  note  receivable  from  Kronos
Worldwide.  In October 2004, Valcor  distributed its note receivable from Kronos
Worldwide to Valhi, and subsequently, Kronos Worldwide prepaid $100.0 million of
the consolidated note payable to Valhi principally using available cash on hand.
In December 2004, Kronos Worldwide  prepaid the remaining  balances on the notes
due Valhi and NL that were originally  represented by the $200 million long-term
note and the related notes were cancelled.

     From  time to time,  other  loans  and  advances  are made  between  Kronos
Worldwide and various related parties  pursuant to term and demand notes.  These
loans and advances are entered into  principally for cash  management  purposes.
When Kronos  Worldwide loans funds to related  parties,  the lender is generally
able to earn a higher  rate of return on the loan than the lender  would earn if
the funds were invested in other instruments. While certain of such loans may be
of a lesser credit quality than cash equivalent  instruments otherwise available
to Kronos Worldwide,  Kronos Worldwide believes that it has evaluated the credit
risks  involved,  and that those risks are reasonable and reflected in the terms
of the applicable loans. When Kronos Worldwide borrows from related parties,  it
is  generally  able to pay a lower  rate of  interest  than it  would  pay if it
borrowed from other parties.

     Interest income on all loans to  unconsolidated  related parties was nil in
2004.  Interest  expense on all loans from  unconsolidated  related  parties was
$15.2 million in 2004.

     Short-Swing  Trading  Profits.  From December 2004 through January 2005, NL
sold certain shares of Common Stock in the open-market.  In the six months prior
to such sales,  Valhi had purchased  shares of Common Stock in the  open-market.
Pursuant  to  section  16(b) of the  Exchange  Act,  certain  of such  sales and
purchases  might be deemed to be matched for purposes of  computing  short-swing
profits. As a result,  Valhi made several voluntary payments to Kronos Worldwide
concurrently with NL's sales transactions  aggregating  approximately  $600,000,
which amount represents the maximum amount of any possible  short-swing  profits
resulting from these transactions.

     Insurance Matters.  Contran and Kronos Worldwide  participate in a combined
risk  management  program.  Pursuant to the program,  Contran and certain of its
subsidiaries  and  affiliates,  including  Kronos  Worldwide  and certain of its
subsidiaries and affiliates,  purchase certain of their insurance  policies as a
group,  with the costs of the jointly owned policies being apportioned among the
participating  companies.  Tall  Pines  Insurance  Company,   including  Valmont
Insurance  Company that merged into Tall Pines in December 2004 ("Tall  Pines"),
and EWI RE, Inc.  ("EWI") provide for or broker these insurance  policies.  Tall
Pines  is a  captive  insurance  company  wholly  owned by  Valhi,  and EWI is a
reinsurance  brokerage and risk management firm wholly owned by NL. A son-in-law
of Harold C. Simmons serves as EWI's  chairman of the board and chief  executive
officer and is  compensated  as an employee of EWI.  Consistent  with  insurance
industry  practices,  Tall Pines and EWI receive  commissions from insurance and
reinsurance underwriters for the policies that they provide or broker.

     With respect to certain of such jointly  owned  insurance  policies,  it is
possible that unusually  large losses  incurred by one or more insureds during a
given  policy  period  could  leave the other  participating  companies  without
adequate  coverage under that policy for the balance of the policy period.  As a
result, Contran and certain of its subsidiaries or affiliates,  including Kronos
Worldwide,  have entered into a loss sharing agreement under which any uninsured
loss is shared by those  entities who have  submitted  claims under the relevant
policy.  Kronos Worldwide  believes the benefits in the form of reduced premiums
and  broader  coverage  associated  with the group  coverage  for such  policies
justify the risks associated with the potential for any uninsured loss.

     During 2004, Contran and its related parties paid premiums of approximately
$15.1  million  for  policies  Tall Pines  provided or EWI  brokered,  including
approximately  $8.1  million  paid by Kronos  Worldwide  and  Louisiana  Pigment
Company,  L.P., a  partnership  of which  subsidiaries  of Kronos  Worldwide and
Huntsman LLC each own 50% ("LPC").  These amounts principally  included payments
for reinsurance and insurance premiums paid to unrelated third parties, but also
included  commissions paid to Tall Pines and EWI. In Kronos Worldwide's opinion,
the amounts that Kronos Worldwide and LPC paid for these insurance  policies and
the allocation among Kronos  Worldwide and its affiliates of relative  insurance
premiums  are  reasonable  and at least as  favorable  to those  they could have
obtained  through  unrelated  insurance  companies or brokers.  Kronos Worldwide
expects that these relationships with Tall Pines and EWI will continue in 2005.

                                      -21-


     Tax Matters. Prior to December 8, 2003, Kronos Worldwide and its qualifying
subsidiaries  were members of NL's  consolidated  U.S.  federal income tax group
(the "NL Tax Group").  As a member of the NL Tax Group,  Kronos  Worldwide was a
party to a tax sharing  agreement  (the "NL Tax  Agreement").  The NL Tax Group,
including Kronos  Worldwide,  was included in the consolidated  U.S. federal tax
return of Contran  (the  "Contran  Tax  Group").  As a member of the Contran Tax
Group,  NL is a party to a separate  tax sharing  agreement  (the  "Contran  Tax
Agreement").  The  Contran Tax  Agreement  provides  that NL and its  qualifying
subsidiaries,  including Kronos  Worldwide,  compute  provisions for U.S. income
taxes on a separate-company basis using tax elections made by Contran.  Pursuant
to the NL Tax  Agreement  and  using  tax  elections  made  by  Contran,  Kronos
Worldwide  makes payments or receives  payments in amounts it would have paid to
or received from the U.S.  Internal  Revenue Service had it not been a member of
the NL Tax Group but instead had been a separate taxpayer. Refunds are generally
limited to amounts previously paid under the NL Tax Agreement.

     Effective   December  8,  2003,   Kronos   Worldwide  and  its   qualifying
subsidiaries  ceased being members of the NL Tax Group, but Kronos Worldwide and
its qualifying subsidiaries remained as members of the Contran Tax Group. Kronos
Worldwide entered into a new tax sharing agreement with Valhi and Contran, which
contains similar terms as the NL Tax Agreement (the "Valhi Tax Agreement").

     Kronos  Worldwide  is also a part of  consolidated  tax  returns  filed  by
Contran in certain  United  States state  jurisdictions.  For such  consolidated
state tax returns, intercompany allocations of state tax provisions are computed
on a separate  company basis using tax elections  made by Contran.  As a result,
Kronos  Worldwide makes payments or receives  payments in the amounts that would
have been paid to or received from the respective state tax authority had Kronos
Worldwide not been a part of the consolidated state tax return.

     Under certain circumstances, tax regulations could require Contran to treat
items differently than Kronos Worldwide would have treated them on a stand alone
basis.  Pursuant to the NL Tax  Agreement  and  consolidated  state tax returns,
Kronos Worldwide received  approximately $1.2 million from NL in 2004.  Pursuant
to the Valhi Tax Agreement,  Kronos Worldwide paid approximately $0.3 million to
Valhi in 2004.

                                      -22-


                                PERFORMANCE GRAPH

     Set  forth  below  is a line  graph  comparing  the  yearly  change  in the
cumulative total stockholder return on Common Stock against the cumulative total
return of the S&P 500 Index and the S&P 500 Diversified  Chemicals Index for the
period  commencing  December 8, 2003 (the  initial  date the Common Stock traded
publicly) and ending December 31, 2004. The graph shows the value at December 31
of each year  assuming an original  investment of $100 and the  reinvestment  of
dividends.

   Comparison of Cumulative Return among Kronos Worldwide, Inc. Common Stock,
          the S&P 500 Index and the S&P 500 Diversified Chemicals Index

                         [PERFORMANCE GRAPH GOES HERE]



                                                 December 8,     December 31,    December 31,
                                                    2003            2003            2004
                                                 -----------     -----------     -----------
                                                                        
Kronos Worldwide, Inc.........................      $100            $129            $243

S&P 500 Index.................................       100             104             115

S&P 500 Diversified Chemicals Index...........       100             105             122



                                      -23-


                             AUDIT COMMITTEE REPORT

     The  audit  committee  of the  Board  of  Directors  is  comprised  of four
directors  and  operates  under  a  written  charter  adopted  by the  Board  of
Directors.  All members of the audit committee meet the  independence  standards
established  by the Board of Directors and the NYSE and  promulgated  by the SEC
under the  Sarbanes-Oxley  Act of 2002. The audit committee charter is available
on  Kronos  Worldwide's  website  at  www.kronostio2.com   under  the  corporate
governance section.

     Kronos  Worldwide's  management  is  responsible  for,  among other things,
preparing its  consolidated  financial  statements in accordance with accounting
principles  generally  accepted  in  the  United  States  of  America  ("GAAP"),
establishing  and  maintaining  internal  control over  financial  reporting (as
defined in Exchange Act Rule 13a-15(f)) and evaluating the effectiveness of such
internal  control  over  financial   reporting.   The  independent   auditor  is
responsible for auditing Kronos Worldwide's consolidated financial statements in
accordance with the standards of the Public Company  Accounting  Oversight Board
(United States) and for expressing an opinion on the conformity of the financial
statements with GAAP. The independent  auditor is also  responsible for auditing
Kronos Worldwide's  internal control over financial reporting in accordance with
such standards and for expressing an opinion on (i)  management's  assessment of
the effectiveness of its internal control over financial  reporting and (ii) the
effectiveness  of its  internal  control  over  financial  reporting.  The audit
committee  assists the Board of Directors in fulfilling  its  responsibility  to
oversee  management's  implementation of Kronos Worldwide's  financial reporting
process.  In its oversight role, the audit committee  reviewed and discussed the
audited financial statements with management and with PricewaterhouseCoopers LLP
("PwC"),  Kronos Worldwide's  independent  auditor for 2004. The audit committee
also reviewed and  discussed  internal  control over  financial  reporting  with
management and with PwC.

     The  audit   committee  met  with  PwC  and  discussed  any  issues  deemed
significant by the  independent  auditor,  including the required  matters to be
discussed by Statement of Auditing  Standards No. 61,  Communication  with Audit
Committee,  as  amended.  PwC  has  provided  to  the  audit  committee  written
disclosures  and the letter  required  by  Independence  Standards  Board No. 1,
Independence  Discussions  with  Audit  Committees,   and  the  audit  committee
discussed with PwC that firm's independence.  The audit committee also concluded
that  PwC's  provision  of  non-audit  services  to  Kronos  Worldwide  and  its
affiliates is compatible with PwC's independence.

     Based upon the foregoing considerations, the audit committee recommended to
the Board of Directors that Kronos Worldwide's  audited financial  statements be
included in its Annual Report on Form 10-K for 2004.

     Members  of the  audit  committee  of the Board of  Directors  respectfully
submit the foregoing report.

     Cecil H. Moore, Jr.                        George E. Poston
     Chairman of the Audit Committee            Member of the Audit Committee

     Keith R. Coogan                            Dr. R. Gerald Turner
     Member of the Audit Committee              Member of the Audit Committee

                                      -24-

                           INDEPENDENT AUDITOR MATTERS

     Independent Auditor.  PwC served as Kronos Worldwide's  independent auditor
for the year ended December 31, 2004.  Kronos  Worldwide's  audit  committee has
appointed  PwC to review Kronos  Worldwide's  quarterly  unaudited  consolidated
financial  statements to be included in its  Quarterly  Reports on Form 10-Q for
the  first  three  quarters  of  2005.  Kronos  Worldwide  expects  PwC  will be
considered  for  appointment  to audit Kronos  Worldwide's  annual  consolidated
financial  statements and internal control over financial reporting for the year
ending December 31, 2005.  Representatives of PwC are not expected to attend the
Meeting.

     Fees Paid to PwC.  The  following  table shows the  aggregate  fees PwC has
billed or is  expected  to bill to Kronos  Worldwide  and its  subsidiaries  for
services rendered for 2003 and 2004.




                 Type of Fees                    2003           2004
    -------------------------------------    ------------   ------------
                                                      
    Audit Fees (1).......................    $    891,709   $  2,571,259
    Audit-Related Fees (2)...............          73,773         20,236
    Tax Fees (3).........................         124,873         51,735
    All Other Fees.......................             -0-            -0-
                                             ------------   ------------

    Total................................    $  1,090,355   $  2,643,230
                                             ============   ============

--------------------

(1)  Fees for the following services:

     (a)  audits of consolidated year-end financial statements for each year and
          audit of internal control over financial reporting for 2004;
     (b)  reviews of the unaudited quarterly financial  statements  appearing in
          Forms 10-Q for each of the first three quarters of each year;
     (c)  consents and assistance with  registration  statements  filed with the
          SEC;  (d)  normally  provided   statutory  or  regulatory  filings  or
          engagements for each year; and
     (e)  the  estimated  out-of-pocket  costs PwC incurred in providing  all of
          such services for which Kronos Worldwide reimburses PwC.

(2)  Fees for assurance and related services  reasonably related to the audit or
     review of Kronos  Worldwide's  financial  statements  for each year.  These
     services  included employee benefit plan audits,  accounting  consultations
     and attest services concerning financial accounting and reporting standards
     and advice concerning internal controls.

(3)  Permitted fees for tax compliance, tax advice and tax planning services.

     Preapproval  Policies  and  Procedures.  On February  17,  2005,  the audit
committee adopted an amended and restated preapproval policy, a copy of which is
attached as Appendix A to this proxy  statement,  with  respect to  preapproving
engagements  of PwC to perform  audit or  nonaudit  services on behalf of Kronos
Worldwide or any of its subsidiaries.  As of May 6, 2003, the NL audit committee
became  responsible for preapproving every engagement of PwC to perform audit or
nonaudit services on behalf of Kronos Worldwide or any of its subsidiaries.  For
2004, the Kronos Worldwide audit committee became responsible for approving such
services.  From  May 6,  2003 to  December  31,  2003,  the NL  audit  committee
preapproved  the engagement of PwC for all such  services.  For 2004, the Kronos
Worldwide  audit  committee  preapproved  the  engagement  of PwC for  all  such
services.

                                  OTHER MATTERS

     The Board of Directors  knows of no other  business  that will be presented
for consideration at the Meeting.  If any other matters properly come before the
Meeting,  the persons  designated as agents in the enclosed proxy card or voting
instruction  form will vote on such matters in accordance with their  reasonable
judgment.

                                      -25-


   STOCKHOLDER PROPOSALS AND DIRECTOR NOMINATIONS FOR THE 2006 ANNUAL MEETING

     Stockholders  may submit  proposals on matters  appropriate for stockholder
action at Kronos Worldwide's annual stockholder meetings,  consistent with rules
adopted by the SEC. Kronos  Worldwide must receive such proposals not later than
December 19, 2005 to be considered for inclusion in the proxy statement and form
of proxy card relating to the Annual  Meeting of  Stockholders  in 2006.  Kronos
Worldwide's  bylaws require that the proposal must set forth a brief description
of the  proposal,  the name and  address of the  proposing  stockholder  as they
appear on Kronos  Worldwide's  books,  the number of shares of Common  Stock the
stockholder holds and any material interest the stockholder has in the proposal.

     The Board of Directors will consider the director  nominee  recommendations
of Kronos  Worldwide  stockholders.  Kronos  Worldwide's  bylaws  require that a
nomination  set forth the name and  address  of the  nominating  stockholder,  a
representation  that the stockholder will be a stockholder of record entitled to
vote at the annual  stockholder  meeting  and  intends to appear in person or by
proxy at the meeting to nominate the nominee,  a description of all arrangements
or  understandings  between the  stockholder  and the nominee (or other  persons
pursuant  to  which  the  nomination  is to be  made),  such  other  information
regarding  the nominee as would be required to be included in a proxy  statement
filed  pursuant  to the proxy rules of the SEC and the consent of the nominee to
serve as a Kronos Worldwide director if elected.

     The Board of Directors has no specific minimum  qualifications for director
candidates.  The Board of Directors will consider a potential director nominee's
ability to satisfy the need, if any, for any required  expertise on the Board of
Directors or one of its committees.  Historically, Kronos Worldwide's management
has recommended  director nominees to the Board of Directors.  Because under the
NYSE  listing  standards  Kronos  Worldwide  may be  deemed  to be a  controlled
company,  the Board of Directors believes that additional policies or procedures
with regard to the  consideration  of  director  candidates  recommended  by its
stockholders are not appropriate.

     For  proposals  or  director  nominations  to be brought at the 2006 Annual
Meeting  of  Stockholders  but not  included  in the  proxy  statement  for such
meeting,  Kronos Worldwide's bylaws require that the proposal or nomination must
be delivered or mailed to the principal executive offices of Kronos Worldwide in
most  cases no later than March 4, 2006.  Proposals  and  nominations  should be
addressed to: Corporate Secretary, Kronos Worldwide, Inc., Three Lincoln Centre,
5430 LBJ Freeway, Suite 1700, Dallas, Texas 75240-2697.

                   COMMUNICATIONS WITH THE BOARD OF DIRECTORS

     Stockholders  who wish to communicate with the Board of Directors may do so
through the  following  procedures.  Stockholder  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.  Stockholder communications that relate to
matters  that are  within  the  scope of the  responsibilities  of the  Board of
Directors  and its  committees,  or  summaries of such  communications,  will be
forwarded to the chairman of the audit committee.

     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.

                         2004 ANNUAL REPORT ON FORM 10-K

     A copy of Kronos Worldwide's Annual Report on Form 10-K for the fiscal year
ended  December  31,  2004,  as filed with the SEC,  is  included as part of the
annual  report  mailed  to  Kronos  Worldwide's  stockholders  with  this  proxy
statement.  This  Annual  Report  on Form  10-K may also be  accessed  on Kronos
Worldwide's website at www.kronostio2.com.

                                      -26-


                                ADDITIONAL COPIES

     Pursuant to an SEC rule concerning the delivery of annual reports and proxy
statements,  a single set of these  documents  may be sent to any  household  at
which two or more  stockholders  reside if they appear to be members of the same
family.  Each  stockholder  continues  to receive a separate  proxy  card.  This
procedure,  referred  to  as  householding,  reduces  the  volume  of  duplicate
information  stockholders  receive and reduces mailing and printing expenses.  A
number of  brokerage  firms have  instituted  householding.  Certain  beneficial
stockholders who share a single address may have received a notice that only one
annual  report  and  proxy  statement  would  be sent to that  address  unless a
stockholder  at that  address  gave  contrary  instructions.  If, at any time, a
stockholder who holds shares through a broker no longer wishes to participate in
householding  and would prefer to receive a separate proxy statement and related
materials,  or if such  stockholder  currently  receives  multiple copies of the
proxy  statement  and related  materials at his or her address and would like to
request householding of Kronos Worldwide communications,  the stockholder should
notify his or her broker. Additionally, Kronos Worldwide will promptly deliver a
separate copy of Kronos  Worldwide's  2004 annual report or this proxy statement
to any  stockholder at a shared address to which a single copy of such documents
was delivered, upon the written or oral request of the stockholder.

         To obtain copies of Kronos Worldwide's 2004 annual report or this proxy
     statement  without  charge,  please mail your  request to the  attention of
Robert D.
Graham, Corporate Secretary, at Kronos Worldwide, Inc., Three Lincoln Centre,
5430 LBJ Freeway, Suite 1700, Dallas, Texas 75240-2697, or call him at
972.233.1700.

                                           KRONOS WORLDWIDE, INC.




                                           Dallas, Texas
                                           April 18, 2005


                                      -27-


                                   Appendix A

                             Kronos Worldwide, Inc.

                       AUDIT COMMITTEE PREAPPROVAL POLICY

                  AMENDED AND RESTATED AS OF FEBRUARY 17, 2005

                                ----------------


                      Section 1. -- Statement of Principles

     The Audit  Committee  is  required,  subject to any  de-minimus  exceptions
permitted by applicable law or regulation, to preapprove the audit and non-audit
services  performed  by the  independent  auditor  in order to  assure  that the
provision of such services do not impair the auditors' independence.

     This Policy applies to services provided by the accounting firm that serves
Kronos  Worldwide,  Inc. and its  subsidiaries  (the  "Company")  as its primary
independent auditor, and any international affiliates thereof.

     Unless a type of  service  to be  provided  by the  independent  auditor is
subject to  preapproval  under  Sections 3 or 4 of this Policy,  it will require
specific  preapproval by the Audit Committee under Section 2 of this Policy.  In
addition,  any proposed  services subject to preapproval under Section 3 of this
Policy  that  exceeds the  applicable  preapproved  fee level will also  require
preapproval under either Section 2 or Section 4 of this Policy.  Notwithstanding
the foregoing,  the preapproval  requirements  under this Policy are waived with
respect to the provision of permitted  non-Audit  Services to the extent allowed
by applicable law or regulation.

                       Section 2. -- Specific Preapproval

     Subject to Sections 4 and 5 of this Policy,  the  following  describes  the
Audit and Audit-related  services to be provided by the independent auditor that
must have the specific preapproval of the Audit Committee before the independent
auditor can be engaged:

     o    Annual audits of the consolidated financial statements of the Company,
          attestation  services associated with the Company's system of internal
          control over financial  reporting and other services  associated  with
          the Company's Annual Report on Form 10-K;
     o    Quarterly review  procedures  associated with the Company's  unaudited
          interim   consolidated   financial   statements   and  other  services
          associated with the Company's Quarterly Reports on Form 10-Q;
     o    Services associated with registration  statements filed by the Company
          with  the  Securities  and  Exchange  Commission  ("SEC"),   including
          responding to SEC comment letters and providing comfort letters;
     o    Statutory audits or annual audits of the annual  financial  statements
          of subsidiaries of the Company;
     o    Quarterly  review  procedures of the interim  financial  statements of
          subsidiaries of the Company;
     o    Services associated with potential business  acquisitions/dispositions
          involving the Company;
     o    Any other services provided to the Company not specifically  described
          above or in Section 3 of this Policy; and
     o    Any material changes in terms,  conditions or fees with respect to the
          foregoing resulting from changes in audit scope,  Company structure or
          other applicable matters.

                  Section 3. -- Other Categories of Preapproval

     Audit-related   services  are  assurance  and  related  services  that  are
reasonably  related to the  performance  of the audit or review of the Company's
financial  statements and that are  traditionally  performed by the  independent
auditor.  The Audit Committee believes that the provision of all of the services
described  below  does  not  impair  the  independence  of  the  auditor  and is
consistent with the SEC's rules on auditor independence.

                                      A-1


     Subject to Section 5 of this Policy,  the following  Audit,  Audit-related,
Tax and All Other services to be provided by the  independent  auditor will have
the  preapproval  of the Audit  Committee,  subject to the  limitation  that the
aggregate  fees for such  services  provided by the  independent  auditor in any
calendar year may not exceed the limits established by the Audit Committee.  The
Audit Committee will periodically  revise the list of pre-approved  services and
the fee limitation based on subsequent determinations as it deems appropriate.

     o    Audit Services:

          o    Consultations with the Company's  management as to the accounting
               and/or disclosure  treatment of transactions or events and/or the
               actual or potential impact of final or proposed rules,  standards
               or interpretations of the SEC, the Financial Accounting Standards
               Board,  the Public Company  Accounting  Oversight  Board or other
               applicable    domestic    or    international    regulatory    or
               standard-setting bodies; and
          o    Assistance with responding to SEC comment letters received by the
               Company other than in connection  with a  registration  statement
               filed with the SEC.

     o    Audit-related Services:

          o    Consultations with the Company's  management as to the accounting
               and/or disclosure  treatment of transactions or events and/or the
               actual or potential impact of final or proposed rules,  standards
               or interpretations of the SEC, the Financial Accounting Standards
               Board,  the Public Company  Accounting  Oversight  Board or other
               applicable    domestic    or    international    regulatory    or
               standard-setting    bodies   (note,   under   SEC   rules,   some
               consultations may be "audit" rather than "audit-related").
          o    Financial  statement  audits  of  employee  benefit  plans of the
               Company;
          o    Agreed-upon or expanded audit procedures related to the Company's
               accounting   records  required  to  respond  to  or  comply  with
               financial, accounting, legal, regulatory or contractual reporting
               requirements; and
          o    Internal  control  reviews and assistance  with internal  control
               reporting requirements of the Company (to the extent permitted by
               applicable rule or regulation).

     o    Tax Services:

          o    Consultations  with  the  Company's  management  as  to  the  tax
               treatment  of   transactions  or  events  and/or  the  actual  or
               potential  tax  impact  of  final or  proposed  laws,  rules  and
               regulations in U.S.  federal,  state and local and  international
               jurisdictions;
          o    Consultations with the Company's management related to compliance
               with existing or proposed tax laws, rules and regulations in U.S.
               federal,  state  and  local and  international  jurisdictions;  o
               Assistance in the preparation of and review of the Company's U.S.
               federal, state and local and international income,  franchise and
               other tax returns;
          o    Assistance with tax inquiries,  audits and appeals of the Company
               before the U.S. Internal Revenue Service and similar state, local
               and international agencies;
          o    Consultations  with the Company's  management  regarding domestic
               and international  statutory,  regulatory or  administrative  tax
               developments;
          o    Transfer pricing and cost segregation studies of the Company; and
               o Expatriate  tax  assistance  and compliance for the Company and
               its employees.

     o    Other Services:

          o    Assistance   with   corporate   governance   matters   (including
               preparation of board minutes and resolutions) and assistance with
               the  preparation  and filing of  documents  (such as paperwork to
               register new  companies  or to  de-register  existing  companies)
               involving the Company with non-U.S.  governmental  and regulatory
               agencies,  provided,  however, that the non-U.S.  jurisdiction in
               which  such  services  are  provided  does not  require  that the
               individual  providing  such  service  be  licensed,  admitted  or
               otherwise qualified to practice law.

     Any services provided by the independent  auditor under this Section of the
Policy  shall be  reported  to the full  Audit  Committee  by an  officer of the
Company  at the first  meeting of the Audit  Committee  held  subsequent  to the
engagement  of the  independent  auditor to provide such  services.  Such report
shall include detailed back-up documentation provided by the independent auditor
regarding the services provided.

                                      A-2


                            Section 4. -- Delegation

     Subject to Section 5 of this  Policy,  the Audit  Committee  has  delegated
preapproval  authority to the Audit Committee  Chairman or his/her  designee for
(i) any  proposed  services  described in Section 3 of this Policy to the extent
that the aggregate fees for such services  provided by the  independent  auditor
during the then-current calendar year has exceeded the limits established by the
Audit  Committee or (ii) any other  proposed  services that are not described in
Section 3 of this Policy that the Audit Committee  Chairman or his/her  designee
determines  to be  appropriate  or necessary.  The Chairman or his/her  designee
shall report any  pre-approval  decisions  under this Section 4 of the Policy to
the full  Audit  Committee  at the first  meeting  of the Audit  Committee  held
subsequent to such pre-approval  decision. The Audit Committee does not delegate
its  responsibilities  to  pre-approve  services  performed  by the  independent
auditor to management.

                   Section 5. -- Prohibited Non-Audit Services

     The  following  is a list of non-audit  services for which the  independent
auditor is prohibited from providing to the Company under the terms of the SEC's
rules on auditor independence, or otherwise:


     o    Bookkeeping  or other services  related to the  accounting  records or
          financial statements of the Company;
     o    Financial information systems design and implementation;
     o    Appraisal    or    valuation    services,    fairness    opinions   or
          contribution-in-kind reports;
     o    Actuarial services; o Internal audit outsourcing services;
     o    Management functions;
     o    Human resources;
     o    Broker, dealer, investment adviser or investment banking services;
     o    Any  service  for which no fee  would be  charged  unless a  specified
          finding  or result is  obtained,  or in which the amount of the fee is
          otherwise  dependent upon the finding or result of such service (other
          than any such fee which is fixed by a court of competent  authority or
          other public authorities and not dependent on a finding or result);
     o    Any tax service involving (i) a listed  transaction within the meaning
          of 26 C.F.R. ss.  1.6011.1-4(b)(2) or (ii) a confidential  transaction
          within the meaning of 26 C.F.R. ss. 1.6011.1-4(b)(3), or that would be
          a  confidential  transaction  within  the  meaning  of 26  C.F.R.  ss.
          1.6011.1-4(b)(3)  if the fee for the transaction were equal to or more
          than the minimum fee described in 26 C.F.R. ss. 1.6011.1-4(b)(3);
     o    Legal  services  to the  extent  that the  jurisdiction  in which such
          services are provided  requires  that the  individual  providing  such
          service be licensed,  admitted or otherwise qualified to practice law;
          and
     o    Expert services unrelated to the audit.

                            Section 6. -- Procedures

     Applications  to provide  services  that require  preapproval  by the Audit
Committee  under Section 2 of this Policy,  or that require  preapproval  of the
Chairman of the Audit  Committee  or his/her  designee  under  Section 4 of this
Policy, must be made by an auditor in writing. Such an application,  which shall
include  detailed  back-up  documentation  provided by the  independent  auditor
regarding the services  provided,  shall be submitted to the Audit  Committee or
the Chairman of the Audit Committee, as applicable, for final resolution.

                        Section 7. -- Engagement Letters

     Engagement  of the  independent  auditor  under this  Policy to provide the
following  services must be evidenced  pursuant to a written  engagement  letter
with the independent auditor that must at least be signed by the Chairman of the
Audit Committee or his/her designee before the engagement can commence:

                                      A-3


     o    Annual audits of the consolidated financial statements of the Company,
          attestation  services associated with the Company's system of internal
          control over financial  reporting and other services  associated  with
          the Company's Annual Report on Form 10-K;
     o    Quarterly review  procedures  associated with the Company's  unaudited
          interim   consolidated   financial   statements   and  other  services
          associated with the Company's Quarterly Reports on Form 10-Q; and
     o    Any  engagement  for which  applicable  professional  standards of the
          independent auditor require an engagement letter.

     Any other  engagement of the  independent  auditor under this Policy may be
evidenced pursuant to a written engagement letter with the independent  auditor,
as may be required by the Audit  Committee,  the Chairman of the Audit Committee
or his/her  designee,  the  independent  auditor  or an officer of the  Company,
before the engagement can commence.  Any such engagement  letter may, but is not
required  to, be signed  by the  Chairman  of the  Audit  Committee  or  his/her
designee.

                                      A-4



                             KRONOS WORLDWIDE, INC.
                              THREE LINCOLN CENTRE
                          5430 LBJ FREEWAY, SUITE 1700
                            DALLAS, TEXAS 75240-2697






Dear Stockholder:

Kronos  Worldwide,  Inc.  encourages you to take advantage of new and convenient
ways by which you can vote your shares. You can vote your shares  electronically
through the internet or by telephone.  This  eliminates  the need to return this
proxy card.

1. To vote over the internet:

     o    Log   on   to   the    internet    and    go   to   the    web    site
          http://www.eproxyvote.com/kro. Internet voting will be available until
          12:01 A.M. on May 19, 2005.

2. To vote over the telephone:

     o    On a touch-tone  telephone  call  1-877-PRX-VOTE  (1-877-779-8683)  24
          hours a day,  seven days a week.  Telephone  voting will be  available
          until 12:01 A.M. on May 19, 2005.

     o    Non-U.S. stockholders should call 1-201-536-8073.

Your  electronic vote authorizes the named proxies to vote in the same manner as
if you  marked,  dated and  returned  this proxy  card.  If you vote your shares
electronically, do not mail back this proxy card.

                  Your vote is important. Thank you for voting.

                                   DETACH HERE
-------------------------------------------------------------------------------
Proxy

                             KRONOS WORLDWIDE, INC.
                              Three Lincoln Centre
                          5430 LBJ Freeway, Suite 1700
                            Dallas, Texas 75240-2697


THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF KRONOS WORLDWIDE,
INC. FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE HELD MAY 19, 2005


The  undersigned  hereby appoints  Gregory M. Swalwell,  Robert D. Graham and A.
Andrew  R.  Louis,  and  each  of  them,  proxy  and  attorney-in-fact  for  the
undersigned,  with  full  power  of  substitution,  to  vote  on  behalf  of the
undersigned at the 2005 Annual Meeting of Stockholders (the "Meeting") of Kronos
Worldwide,  Inc., a Delaware  corporation  ("Kronos  Worldwide"),  to be held at
Kronos Worldwide's  corporate offices at Three Lincoln Centre, 5430 LBJ Freeway,
Suite 1700, Dallas, Texas on Thursday, May 19, 2005, at 10:00 a.m. (local time),
and at any  adjournment  or  postponement  of the Meeting,  all of the shares of
common stock,  par value $0.01 per share,  of Kronos  Worldwide  standing in the
name of the  undersigned or that the  undersigned may be entitled to vote on the
proposals set forth, and in the manner directed, on this proxy card.

      THIS PROXY MAY BE REVOKED AS SET FORTH IN THE KRONOS WORLDWIDE PROXY
                  STATEMENT THAT ACCOMPANIED THIS PROXY CARD.

The proxies, if this card is properly executed, will vote in the manner directed
on this card. If no direction is made,  the proxies will vote "FOR" all nominees
named on the reverse  side of this card for  election as  directors  and, to the
extent  allowed by  applicable  law, in the  discretion of the proxies as to all
other matters that may properly come before the Meeting and any  adjournment  or
postponement thereof.

PLEASE SIGN, DATE AND MAIL THIS PROXY CARD PROMPTLY IN THE ENCLOSED ENVELOPE.



Kronos Worldwide, Inc.
C/O EQUISERVE TRUST COMPANY N.A.
P.O. BOX 8003
EDISON, NJ   08818-8003

                Your vote is important. Please vote immediately.

      Vote-by-Internet                         Vote-by-Telephone

Log on to the internet and go to          Call toll-free
http://www.eproxyvote.com/kro.            1-877-PRX-VOTE (1-877-779-8683)

Follow the easy steps outlined            Follow the easy recorded instructions.
on the secured website. 


  If you vote over the internet or by telephone, please do not mail your card.

            DETACH HERE IF YOU ARE RETURNING YOUR PROXY CARD BY MAIL
-------------------------------------------------------------------------------

[ X ] Please mark votes as in this example.

This proxy, if properly executed, will be voted as specified below by you. If no
direction is given,  this proxy will be voted "FOR" all  nominees for  directors
listed below and "FOR" proposal 2.

-------------------------------------------------------------------------------
The Board of Directors recommends a vote "FOR" all nominees for director listed
below and "FOR" proposal 2.
-------------------------------------------------------------------------------

1.       Election of Directors. (Please see reverse)

                           FOR         WITHHOLD
         FOR                                         WITHHOLD
         ALL               [ ]            [ ]        FROM ALL
         NOMINEES                                    NOMINEES

         ----------------------------------------------
         For all nominees except as written above.

         Director Nominees:
         01  Keith R. Coogan,
         02  Cecil H. Moore, Jr.,
         03  George E. Poston,
         04  Glenn R. Simmons,
         05  Harold C. Simmons,
         06  R. Gerald Turner, and
         07  Steven L. Watson.

2.       In their discretion, the proxies are authorized to vote upon such other
         business as may properly come before the Meeting and any adjournment or
         postponement thereof.

           [ ] FOR              [ ] AGAINST             [ ] ABSTAIN


Please sign exactly as the name that appears on this card.  Joint owners  should
each sign.  When  signing  other than in an  individual  capacity,  please fully
describe such  capacity.  Each signatory  hereby revokes all proxies  heretofore
given to vote at said Meeting and any adjournment or postponement thereof.

Signature:               Date:         Signature:               Date:
           ------------        -------            -------------       --------