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

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                                (Amendment No. 2)

                             KRONOS WORLDWIDE, INC.
                                (Name of Issuer)

                          Common Stock, $0.01 par value
                         (Title of Class of Securities)

                                   50105F 10 5
                                 (CUSIP Number)

                                December 31, 2005
             (Date of Event Which Requires Filing of this Statement)

         Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

         [   ] Rule 13d-1(b)

         [   ] Rule 13d-1(c)

         [ X ] Rule 13d-1(d)

     *The  remainder  of this cover  page  shall be filled  out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

     The  information  required on the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 ("Act") or otherwise  subject to the  liabilities of that section of
the Act but shall be subject to all other  provisions of the Act  (however,  see
the Notes).






CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      NL Industries, Inc.

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      New Jersey

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    17,516,132
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     17,516,132

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      17,516,132

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      35.8%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      TIMET Finance Management Company

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    17,521,335
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     17,521,335

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      17,521,335

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      35.8%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Titanium Metals Corporation

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    17,521,335
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     17,521,335

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      17,521,335

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      35.8%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Tremont LLC

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    17,521,335
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     17,521,335

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      17,521,335

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      35.8%

    12       TYPE OF REPORTING PERSON

                      OO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Valhi, Inc.

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Valhi Holding Company

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Valhi Group, Inc.

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Nevada

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      National City Lines, Inc.

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      NOA, Inc.

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Texas

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Dixie Holding Company

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Dixie Rice Agricultural Corporation, Inc.

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Louisiana

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Southwest Louisiana Land Company, Inc.

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Louisiana

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Contran Corporation

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      The Combined Master Retirement Trust

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Texas

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      EP







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Harold Simmons Foundation, Inc.

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      Texas

                               5      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,583,488
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               8      SHARED DISPOSITIVE POWER

                                                     45,583,488

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      45,583,488

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [  ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      93.1%

    12       TYPE OF REPORTING PERSON

                      CO







CUSIP No.  50105F 10 5

     1       NAME OF REPORTING PERSON

                      Harold C. Simmons

                      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)


     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

             (a)  [   ]

             (b)  [   ]

     3       SEC USE ONLY



     4       CITIZENSHIP OR PLACE OF ORGANIZATION

                      USA

                               5      SOLE VOTING POWER

                                                          4,755
        NUMBER OF
          SHARES               6      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    45,619,844
           EACH
        REPORTING              7      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                           4,755

                               8      SHARED DISPOSITIVE POWER

                                                     45,619,844

     9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      4,755

    10       CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
             SHARES  [ X ]

    11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                      0.0%

    12       TYPE OF REPORTING PERSON

                      IN







                                  SCHEDULE 13G

Item 1(a).       Name of Issuer:

                 Kronos Worldwide, Inc., a Delaware corporation (the "Company").

Item 1(b).       Address of Issuer's Principal Executive Offices:

                 Three Lincoln Centre
                 5430 LBJ Freeway, Suite 1700
                 Dallas, Texas   75240-2697

Items 2(a).      Name of Person Filing:

                 The following entities or person (collectively, the
                 "Reporting Persons") are filing this statement:

                  (i)      TIMET  Finance   Management   Company  ("TFMC"),   NL
                           Industries,  Inc. ("NL") and Valhi,  Inc. ("Valhi) as
                           direct holders of shares  ("Shares") of common stock,
                           par value $0.01 per share, of the Company;

                  (ii)     Titanium Metals  Corporation  ("TIMET"),  Tremont LLC
                           ("Tremont"),  Valhi Holding  Company  ("VHC"),  Valhi
                           Group,  Inc.  ("VGI"),   National  City  Lines,  Inc.
                           ("National"),   NOA,  Inc.  ("NOA"),   Dixie  Holding
                           Company ("Dixie  Holding"),  Dixie Rice  Agricultural
                           Corporation, Inc. ("Dixie Rice"), Southwest Louisiana
                           Land Company, Inc. ("Southwest"), Contran Corporation
                           ("Contran"),  The Combined  Master  Retirement  Trust
                           (the "CMRT") and the Harold Simmons Foundation,  Inc.
                           (the  "Foundation")  by  virtue  of their  direct  or
                           indirect ownership of TFMC, NL or Valhi; and

                  (iii)    Harold C.  Simmons by virtue of his and his  spouse's
                           direct  holdings  of Shares  and his  positions  with
                           Contran  and  certain  of its  related  entities  (as
                           described in this statement).

Item 2(b).        Address of Principal Business Office or, if none, Residence:

                  The principal  business office of TFMC is 300 Delaware Avenue,
                  Suite 900, Wilmington,  Delaware 19801. The principal business
                  office of TIMET is 1999 Broadway, Suite 4300, Denver, Colorado
                  80202.  The principal  business office of NL, Tremont,  Valhi,
                  VHC, VGI, National, NOA, Dixie Holding,  Contran, the CMRT and
                  the  Foundation  is located  at, and the  business  address of
                  Harold C. Simmons is, Three Lincoln Centre,  5430 LBJ Freeway,
                  Suite 1700, Dallas,  Texas 75240-2697.  The principal business
                  address  of  Dixie  Rice  is 600  Pasquiere  Street,  Gueydan,
                  Louisiana 70542.  The principal  business address of Southwest
                  is 402 Canal Street, Houma, Louisiana 70360.

Item 2(c).        Citizenship:

                  Contran, Dixie Holding,  National,  TFMC, TIMET, Valhi and VHC
                  are  Delaware  corporations.  NL is a New Jersey  corporation.
                  Tremont  is a Delaware  limited  liability  company.  VGI is a
                  Nevada  corporation.  NOA  is  a  Texas  corporation  and  the
                  Foundation is a Texas non-profit  corporation.  Dixie Rice and
                  Southwest are Louisiana corporations.  The CMRT is governed by
                  the  laws of the  state of  Texas,  except  as those  laws are
                  superseded  by federal law.  Harold C. Simmons is a citizen of
                  the United States.

Item 2(d).       Title of Class of Securities:

                 Common stock, par value $0.01 per share.

Item 2(e).       CUSIP Number:

                 50105F 10 5

Item 3.          If this statement is filed  pursuant to sections  240.13d-1(b)
                 or 240.13d-2(b) or (c), check whether the person filing is a:

                 (a)      [   ]    Broker or dealer  registered  under  section
                                   15 of the Act (15  U.S.C. 78o);

                 (b)      [   ]    Bank as defined in section 3(a)(6) of the Act
                                   (15 U.S.C. 78c);

                 (c)      [   ]    Insurance  company  as  defined  in  section
                                   3(a)(19)  of the  Act (15  U.S.C. 78c);

                 (d)      [   ]    Investment Company registered under section
                                   8 of the Investment Company Act (15 U.S.C.
                                   80a-8);

                 (e)      [   ]    Investment adviser in accordance
                                   with section 240.13d-1(b)(1)(ii)(E);

                 (f)      [   ]    An employee benefit plan or
                                   endowment fund in accordance with
                                   section 240.13d-1(b)(1)(ii)(F);

                 (g)      [   ]    A parent holding company or
                                   control person in accordance with
                                   section 240.13d-1(b)(1)(ii)(G);

                 (h)      [   ]    A savings association as defined
                                   in section 3(b) of the Federal
                                   Deposit Insurance Act (12 U.S.C.
                                   1813);

                 (i)      [   ]    A church plan that is excluded
                                   from the definition of an investment
                                   company under section 3(c)(14) of
                                   the Investment Company Act of 1940
                                   (15 U.S.C. 80a-3); or

                 (j)      [   ]    Group, in accordance with
                                   section 240.13d-1(b)(1)(ii)(J).

Item 4.          Ownership (as of December 31, 2005).

                 (a) Amount Beneficially Owned:
                 (b) Percent of Class:

                      By virtue of the relationships described under Item 7
                      of this statement, as of December 31, 2005:

                           (1)      NL may be  deemed  to own  beneficially  the
                                    17,516,132  Shares  (approximately  35.8% of
                                    the  48,949,549  Shares  outstanding  as  of
                                    December  31,  2005,  based  on  information
                                    provided  by  the  Company  and  hereinafter
                                    referred  to as  the  "Outstanding  Shares")
                                    that NL holds directly;

                           (2)      TFMC, TIMET and Tremont may be deemed to own
                                    beneficially    the    17,521,335     Shares
                                    (approximately   35.8%  of  the  Outstanding
                                    Shares) that TFMC and NL hold directly;

                           (3)      Valhi,  VHC,  VGI,   National,   NOA,  Dixie
                                    Holding, Dixie Rice, Southwest, Contran, the
                                    CMRT and the Foundation may be deemed to own
                                    beneficially    the    45,583,488     Shares
                                    (approximately   93.1%  of  the  Outstanding
                                    Shares)   that  TFMC,   NL  and  Valhi  hold
                                    directly; and

                           (4)      Harold  C.  Simmons  may  be  deemed  to own
                                    beneficially    the    45,624,599     Shares
                                    (approximately   93.2%  of  the  Outstanding
                                    Shares) that TFMC, NL, Valhi, his spouse and
                                    he hold directly.

                   (c) Number of shares as to which the person has:

                           (i)      Sole power to vote or to direct the vote:

                                    As of December 31,  2005,  Harold C. Simmons
                                    had the  sole  power to vote or  direct  the
                                    disposition of 4,755 Shares.

                           (ii)     Shared power to vote or to direct the vote:

                                    By  virtue  of the  relationships  described
                                    under  Item  7  of  this  statement,  as  of
                                    December 31, 2005:

                                    (1)      NL may be deemed to share the power
                                             to vote or direct  the  disposition
                                             of    the     17,516,132     Shares
                                             (approximately    35.8%    of   the
                                             Outstanding  Shares)  that NL holds
                                             directly;

                                    (2)      TFMC,  TIMET  and  Tremont  may  be
                                             deemed  to share  the power to vote
                                             or direct  the  disposition  of the
                                             17,521,335  Shares   (approximately
                                             35.8%  of the  Outstanding  Shares)
                                             that TFMC and NL hold directly;

                                    (3)      Valhi,  VHC,  VGI,  National,  NOA,
                                             Dixie    Holding,    Dixie    Rice,
                                             Southwest,  Contran,  the  CMRT and
                                             the  Foundation  may have be deemed
                                             to  share  the  power  to  vote  or
                                             direct  the   disposition   of  the
                                             45,583,488  Shares   (approximately
                                             93.1%  of the  Outstanding  Shares)
                                             that   TFMC,   NL  and  Valhi  hold
                                             directly; and

                                    (4)      Harold C.  Simmons may be deemed to
                                             share  the  power to vote or direct
                                             the  disposition  of the 45,619,844
                                             Shares  (approximately 93.2% of the
                                             Outstanding  Shares) that TFMC, NL,
                                             Valhi and his spouse hold directly.

                           (iii)    Sole   power  to   dispose   or  direct  the
                                    disposition of:

                                    See the  response  to Item  4(c)(i)  of this
                                    statement.

                           (iv)     Shared  power to  dispose  or to direct  the
                                    disposition of:

                                    See the  response  to Item  4(c)(ii) of this
                                    statement.

Item 5.               Ownership of Five Percent or Less of a Class.

                      Not applicable.

Item 6.               Ownership of More than Five Percent on Behalf of Another
                      Person.

                      Not applicable.

Item 7.               Identification  and  Classification  of the  Subsidiary
                      Which  Acquired the  Security  Being Reported on By the
                      Parent Holding Company or Control Person.

                      See  Schedule  B  attached  hereto  and  incorporated
                      herein by reference.

Item 8.               Identification and Classification of Members of the Group.

                      Not applicable.

Item 9.               Notice of Dissolution of Group.

                      Not applicable.

Item 10.              Certification.

                      Not applicable.





                                    Signature

         After reasonable  inquiry and to the best of my knowledge and belief, I
certify that the information  set forth in this statement is true,  complete and
correct.

Date:  February 8, 2006




                                                          /s/ Harold C. Simmons
                                                          ----------------------
                                                          Harold C. Simmons
                                                          Signing in the
                                                          capacities listed on
                                                          Schedule "A" attached
                                                          hereto and
                                                          incorporated herein by
                                                          reference.





                                    Signature

         After reasonable  inquiry and to the best of my knowledge and belief, I
certify that the information  set forth in this Statement is true,  complete and
correct.

Date:  February 8, 2006





                                                          /s/ Steven L. Watson
                                                          ----------------------
                                                          Steven L. Watson
                                                          Signing in the
                                                          capacities listed on
                                                          Schedule "A" attached
                                                          hereto and
                                                          incorporated herein by
                                                          reference.





                                    Signature

         After reasonable  inquiry and to the best of my knowledge and belief, I
certify that the information  set forth in this Statement is true,  complete and
correct.

Date:  February 8, 2006





                                                         /s/ Gregory M. Swalwell
                                                         ----------------------
                                                         Gregory M. Swalwell
                                                         Signing in the
                                                         capacity listed on
                                                         Schedule "A" attached
                                                         hereto and
                                                         incorporated herein by
                                                         reference.





                                   SCHEDULE A


HAROLD C. SIMMONS, in his individual capacity, and as trustee of THE COMBINED
MASTER RETIREMENT TRUST.


STEVEN L. WATSON, as president, chief executive officer or vice president of
each of:

CONTRAN CORPORATION
DIXIE HOLDING COMPANY
DIXIE RICE AGRICULTURAL CORPORATION, INC.
HAROLD SIMMONS FOUNDATION, INC.
NATIONAL CITY LINES, INC.
NOA, INC.
SOUTHWEST LOUISIANA LAND COMPANY, INC.
TITANIUM METALS CORPORATION
TREMONT LLC
VALHI GROUP, INC.
VALHI HOLDING COMPANY
VALHI, INC.


GREGORY M. SWALWELL, as vice president of each of:

NL INDUSTRIES, INC.
TIMET FINANCE MANAGEMENT COMPANY





                                   SCHEDULE B


         The  following  information  is presented as of December 31, 2005.  All
capitalized  terms in this Schedule B have the same meanings given such terms in
the statement to which this Schedule B is a part.

                  Valhi, NL and TFMC are the direct holders of 28,062,153 Shares
         (57.3%),   17,516,132   Shares   (35.8%)  and  5,203   Shares   (0.0%),
         respectively,  of the Outstanding Shares. Together, Valhi and NL may be
         deemed to control the Company.

                  TIMET is the direct holder of 100% of the  outstanding  shares
         of common  stock of TFMC and may be deemed to  control  TFMC.  Tremont,
         Harold C. Simmons'  spouse,  the CMRT,  Valhi and Harold C. Simmons are
         the  holders  of  approximately  36.8%,  13.7%,  11.2%,  4.2% and 2.0%,
         respectively,  of the outstanding shares of TIMET common stock. Tremont
         may be deemed to control TIMET.  The ownership of Mr.  Simmons'  spouse
         includes  5,333,333 shares of TIMET common stock that she has the right
         to acquire upon the  conversion  of 1,600,000  shares of TIMET's 6 3/4%
         Series A Convertible  Preferred  Stock,  par value $0.01 per share (the
         "Series A Preferred Stock"),  that she directly holds. The ownership of
         Valhi  includes  49,000 shares of TIMET common stock that Valhi has the
         right to acquire upon conversion of 14,700 shares of 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 Series A Preferred  Stock she or Valhi
         owns, respectively.

                  Valhi and TFMC are the direct holders of  approximately  83.1%
         and 0.5%,  respectively,  of the outstanding shares of NL common stock.
         Valhi may be deemed to control NL.  Valhi is the direct  holder of 100%
         of the  membership  interests  of Tremont  and may be deemed to control
         Tremont.

                  VHC, the Foundation,  the Contran Deferred  Compensation Trust
         No. 2 (the "CDCT No. 2") and the CMRT are the direct  holders of 91.4%,
         0.9%, 0.4% and 0.1%,  respectively,  of the outstanding common stock of
         Valhi.  VHC may be deemed to control Valhi.  VGI,  National and Contran
         are the direct holders of 87.4%, 10.3% and 2.3%,  respectively,  of the
         outstanding  common stock of VHC.  Together,  VGI, National and Contran
         may be deemed to control VHC.  National,  NOA and Dixie Holding are the
         direct holders of approximately  73.3%, 11.4% and 15.3%,  respectively,
         of the outstanding  common stock of VGI.  Together,  National,  NOA and
         Dixie  Holding  may be deemed to control  VGI.  Contran and NOA are the
         direct holders of approximately 85.7% and 14.3%,  respectively,  of the
         outstanding  common  stock of National  and  together  may be deemed to
         control  National.  Contran  and  Southwest  are the direct  holders of
         approximately 49.9% and 50.1%, respectively,  of the outstanding common
         stock of NOA and together  may be deemed to control NOA.  Dixie Rice is
         the  direct  holder of 100% of the  outstanding  common  stock of Dixie
         Holding  and may be deemed to  control  Dixie  Holding.  Contran is the
         holder of 100% of the outstanding common stock of Dixie Rice and may be
         deemed to control  Dixie Rice.  Contran is the holder of  approximately
         88.9% of the outstanding common stock of Southwest and may be deemed to
         control 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 each of the Trusts,
         Mr.  Simmons  has the power to vote and direct the  disposition  of the
         shares  of  Contran  stock  held by each of the  Trusts.  Mr.  Simmons,
         however,  disclaims beneficial ownership of any shares of Contran stock
         that the Trusts held.

                  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  and may be
         deemed to control the Foundation.

                  The  CDCT  No.  2  directly  holds  approximately  0.4% of the
         outstanding 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 is obligated to satisfy the balance of such obligations as they
         come due.  Pursuant to the terms of the CDCT No. 2, Contran (i) retains
         the power to vote the shares of Valhi common stock held directly by the
         CDCT No. 2, (ii) retains  dispositive  power over such shares and (iii)
         may be deemed the indirect beneficial owner of such shares.

                  The CMRT directly holds approximately 11.2% of the outstanding
         shares  of TIMET  common  stock and 0.1% of the  outstanding  shares of
         Valhi common stock.  Contran sponsors the CMRT as a trust to permit the
         collective  investment  by master  trusts that  maintain  the assets of
         certain employee benefit plans Contran and related companies adopt. Mr.
         Simmons  is the sole  trustee  of the CMRT  and a member  of the  trust
         investment  committee for the CMRT. Mr. Simmons is a participant in one
         or more of the employee benefit plans that invest through the CMRT.

                  NL and a subsidiary  of NL directly own  3,522,967  shares and
         1,186,200  shares,  respectively,  of Valhi common  stock.  Pursuant to
         Delaware law, Valhi treats the shares of Valhi common stock that NL and
         the subsidiary of NL own as treasury stock for voting  purposes and for
         the  purposes  of  percentage  calculations  such shares are not deemed
         outstanding.

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

                  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 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 such beneficial ownership of the Shares
         beneficially owned directly or indirectly by any of such entities.  Mr.
         Harold Simmons disclaims beneficial ownership of all Shares that Valhi,
         NL or TFMC directly hold.

                  Harold  C.  Simmons'  spouse  is the  direct  owner of  36,356
         Shares,  119,475  shares of NL common  stock,  114,000  shares of TIMET
         common stock,  1,600,000 shares of Series A Preferred Stock,  which are
         convertible  into  5,333,333  shares of TIMET common stock,  and 43,400
         shares  of Valhi  common  stock.  Mr.  Simmons  may be  deemed to share
         indirect beneficial ownership of such shares. Mr. Simmons disclaims all
         such beneficial ownership.

                  Harold C. Simmons directly holds 4,755 Shares,  257,000 shares
         of NL common  stock  (including  stock  options  exercisable  for 4,000
         shares), 703,000 shares of TIMET common stock and 3,383 shares of Valhi
         common stock.

                  A  trust  of  which  Harold  C.  Simmons  and his  spouse  are
         co-trustees and the beneficiaries of which are the grandchildren of his
         spouse is the direct holder of 36,500 shares of Valhi common stock. Mr.
         Simmons disclaims beneficial ownership of these shares.