SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  Schedule 13D
                               (Amendment No. 13)*

                    Under the Securities Exchange Act of 1934


                           TITANIUM METALS CORPORATION
                                (Name of Issuer)

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

                                   888339 10 8
                                 (CUSIP Number)

                                STEVEN L. WATSON
                              THREE LINCOLN CENTRE
                                   SUITE 1700
                                5430 LBJ FREEWAY
                            DALLAS, TEXAS 75240-2694
                                 (972) 233-1700
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                  July 1, 2002
                      (Date of Event which requires Filing
                               of this Statement)

     If the filing  person has  previously  filed a statement on Schedule 13G to
report the  acquisition  that is the subject of this Schedule 13D, and is filing
this schedule  because of sections  240.13d-1(e),  240.13d-1(f) or 240.13d-1(g),
check the following box. [ ]

     *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).

                         (Continued on following pages)






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Tremont Corporation

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      WC and AF

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Tremont Group, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Tremont Holdings, LLC

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      OO






CUSIP No.  888339 10 8

     1    NAMES OF REPORTING PERSONS AND I.R.S. IDENTIFICATION NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      NL Industries, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      New Jersey

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Valhi, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Valhi Group, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Nevada

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      National City Lines, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      NOA, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Texas

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Dixie Holding Company

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Dixie Rice Agricultural Corporation, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Louisiana

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Southwest Louisiana Land Company, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Louisiana

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Contran Corporation

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Delaware

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Harold Simmons Foundation, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Texas

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    12,280,005
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     12,280,005

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      12,280,005

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      38.5%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      CO






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      The Combined Master Retirement Trust

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      WC

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      Texas

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    14,473,405
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     14,473,405

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      14,473,405

    12    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [  ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      45.4%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      EP






CUSIP No.  888339 10 8

     1    NAMES OF  REPORTING  PERSONS  AND I.R.S.  IDENTIFICATION  NOS. OF SUCH
          PERSONS (ENTITIES ONLY)

                      Harold C. Simmons

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP(SEE INSTRUCTIONS)

          (a)  [   ]

          (b)  [ X ]

     3    SEC USE ONLY



     4    SOURCE OF FUNDS (SEE INSTRUCTIONS)

                      Not applicable

     5    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
          PURSUANT TO ITEMS 2(d) OR 2(e)  [  ]


     6    CITIZENSHIP OR PLACE OF ORGANIZATION

                      USA

                               7      SOLE VOTING POWER

                                                            -0-
        NUMBER OF
          SHARES               8      SHARED VOTING POWER
       BENEFICIALLY
         OWNED BY                                    14,473,405
           EACH
        REPORTING              9      SOLE DISPOSITIVE POWER
          PERSON
           WITH                                             -0-

                               10     SHARED DISPOSITIVE POWER

                                                     14,473,405

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                      -0-

    12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
          CERTAIN SHARES (SEE INSTRUCTIONS)  [ X ]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                      0.0%

    14    TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                      IN






                                AMENDMENT NO. 13
                                 TO SCHEDULE 13D

     This amended  statement on Schedule 13D  (collectively,  this  "Statement")
relates  to the  common  stock,  $0.01 par value per share  (the  "Shares"),  of
Titanium Metals Corporation, a Delaware corporation (the "Company"). Items 2, 3,
4 and 5 of this Statement are hereby amended as set forth below.

Item 2.  Identity and Background.

         Item 2(a) is amended as follows:

     (a) This Statement is filed (i) by Tremont Corporation  ("Tremont") and The
Combined Master  Retirement  Trust (the "CMRT") as the direct holders of Shares,
(ii) by virtue of the direct and indirect ownership of securities of Tremont (as
described below in this  Statement),  by Tremont Group,  Inc.  ("TGI"),  Tremont
Holdings,  LLC  ("TRE  Holdings"),  NL  Industries,  Inc.  ("NL"),  Valhi,  Inc.
("Valhi"),  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")  and the Harold  Simmons
Foundation,  Inc. (the  "Foundation")  and (iii) by virtue of his positions with
Contran and certain of the other entities (as described in this  Statement),  by
Harold C.  Simmons  (collectively,  the  "Reporting  Persons").  By signing this
Statement,  each Reporting  Person agrees that this Statement is filed on its or
his behalf.

     Tremont  and the CMRT are the  direct  holders of  approximately  38.5% and
6.9%,  respectively,  of the  31,866,338  Shares  outstanding as of May 10, 2002
based on the Company's Quarterly Report on Form 10-Q for the quarter ended March
31,  2002 (the  "Outstanding  Shares").  Tremont  may be deemed to  control  the
Company.

     TGI, TRE Holdings and Valhi are the direct holders of approximately  80.0%,
0.1% and 0.1%,  respectively,  of the outstanding shares of Tremont common stock
and  together may be deemed to control  Tremont.  Valhi and TRE Holdings are the
direct holders of 80.0% and 20.0%,  respectively of the outstanding common stock
of TGI and  together  may be deemed to control TGI. NL is the sole member of TRE
Holdings  and may be deemed to control TRE  Holdings.  Valhi and Tremont are the
direct  holders  of  approximately  61.7%  and  20.9%,   respectively,   of  the
outstanding  common  stock of NL and  together may be deemed to control NL. VGI,
National, Contran, the Foundation, the Contran Deferred Compensation Trust No. 2
(the  "CDCT No. 2") and the CMRT are the direct  holders of 81.4%,  9.5%,  2.1%,
0.5%, 0.4% and 0.1%, respectively,  of the common stock of Valhi. Together, VGI,
National  and Contran may be deemed to control  Valhi.  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.  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 hold.

     The CMRT directly holds  approximately  6.9% of the Outstanding  Shares and
0.1% of the outstanding shares of Valhi common stock. Valhi established the CMRT
as a trust to permit the  collective  investment  by master trusts that maintain
the assets of certain employee benefit plans Valhi 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.

     The Foundation  directly holds  approximately 0.5% of the outstanding Valhi
common stock. The Foundation is a tax-exempt foundation organized for charitable
purposes.  Harold C.  Simmons is the  chairman of the board and chief  executive
officer 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.

     Valmont Insurance  Company  ("Valmont") and a subsidiary of NL directly own
1,000,000  shares and  1,186,200  shares,  respectively,  of Valhi common stock.
Valhi is the direct  holder of 100% of the  outstanding  common stock of Valmont
and may be deemed to control Valmont. Pursuant to Delaware law, Valhi treats the
shares of Valhi  common  stock  that  Valmont  and the  subsidiary  of NL own as
treasury  stock for voting  purposes and for the purposes of this Statement such
shares are not deemed outstanding.

     Mr. Harold C. Simmons is chairman of the board and chief executive  officer
of TGI, Valhi,  VGI,  National,  NOA, Dixie Holding,  Dixie Rice,  Southwest and
Contran.  Mr.  Simmons is also  chairman  of the board of NL and a  director  of
Tremont.

     By virtue of the  holding  of the  offices,  the  stock  ownership  and his
service as trustee,  all as described  above,  (a) Mr.  Simmons may be deemed to
control the  entities  described  above 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.

     Harold C. Simmons' spouse is the direct owner of 69,475 shares of NL common
stock. Mr. Simmons may be deemed to share indirect beneficial  ownership of such
shares. Mr. Simmons disclaims all such beneficial ownership.

Item 3.  Source and Amount of Funds or Other Consideration.

         Item 3 is amended as follows:

     The total amount of funds the CMRT used to acquire the Shares  purchased by
it as  reported in Item 5(c) was  $1,687,154.04  (including  commissions).  Such
funds were provided by the CMRT's cash on hand.

Item 4.  Purpose of Transaction

         Item 4 is amended as follows:

         No change except for the addition of the following:

         The CMRT purchased Shares for investment purposes.

     Depending  upon their  evaluation of the Company's  business and prospects,
and upon future developments (including,  but not limited to, performance of the
Shares in the market,  availability  of funds,  alternative  uses of funds,  and
money,  stock  market and general  economic  conditions),  any of the  Reporting
Persons or other entities that may be deemed to be affiliated with Contran,  may
from time to time purchase  Shares,  and any of the  Reporting  Persons or other
entities that may be deemed to be affiliated  with Contran may from time to time
dispose of all or a portion of the Shares held by such  person,  or cease buying
or selling Shares.  Any such additional  purchases or sales of the Shares may be
in open market or privately negotiated transactions or otherwise.

     Depending  upon their  evaluation of the Company's  business and prospects,
and upon future developments (including,  but not limited to, performance of the
Shares in the market,  availability  of funds,  alternative  uses of funds,  the
Reporting  Persons' tax planning  objectives and money, stock market and general
economic conditions), any of the Reporting Persons or other entities that may be
deemed to be affiliated with Contran may from time to time purchase Shares,  and
any of the  Reporting  Persons,  or  other  entities  that may be  deemed  to be
affiliated with Contran may from time to time dispose of all or a portion of the
Shares  held by such  person,  or  cease  buying  or  selling  Shares.  Any such
additional  purchases  or sales of the Shares may be in open market or privately
negotiated transactions or otherwise.

     As  described  under Item 2, Harold C.  Simmons,  through  Contran,  may be
deemed to control the Company.

Item 5.  Interest in Securities of the Issuer.

         Item 5 is amended as follows:

         No change except for the addition of the following:

     (a) Tremont and the CMRT are the direct beneficial owners of 12,280,005 and
2,193,400 Shares, respectively.

     By virtue of the relationships described under Item 2 of this Statement:

          (1) Tremont, TGI, TRE Holdings,  NL, Valhi, VGI, National,  NOA, Dixie
     Holding,  Dixie Rice,  Southwest,  Contran and the  Foundation  may each be
     deemed to be the beneficial owner of the 12,280,005  Shares  (approximately
     38.5% of the Outstanding Shares) that Tremont holds directly; and

          (2) The CMRT and  Harold  C.  Simmons  may  each be  deemed  to be the
     beneficial  owner  of the  14,473,405  Shares  (approximately  45.4% of the
     Outstanding Shares) that Tremont and the CMRT hold directly.

     Mr. Simmons disclaims beneficial ownership of all Shares.

     (b) By virtue of the relationships described in Item 2:

          (1) Tremont, TGI, TRE Holdings,  NL, Valhi, VGI, National,  NOA, Dixie
     Holding,  Dixie Rice,  Southwest,  Contran and the  Foundation  may each be
     deemed  to share  the  power  to vote and  direct  the  disposition  of the
     12,280,005  Shares  (approximately  38.5% of the  Outstanding  Shares) that
     Tremont holds directly; and

          (2) The CMRT and  Harold  C.  Simmons  may each be deemed to share the
     power  to  vote  and  direct  the  disposition  of  the  14,473,405  Shares
     (approximately  45.4% of the Outstanding  Shares) that Tremont and the CMRT
     hold directly.

     (c) The table  below sets forth  purchases  of the Shares by the  Reporting
Persons subsequent to June 21, 2002, the last reported trade in Amendment No. 12
to this  Statement.  All of such  purchases were effected by the CMRT on the New
York Stock Exchange.


                                                         Approximate Price
                                                              Per Share
       Date               Amount of Shares           (exclusive of commissions)
     --------             ----------------           --------------------------

     06/24/02                     90,700                      $3.9532
     06/24/02                      3,000                      $3.9500
     06/25/02                      8,300                      $3.9996
     06/26/02                     18,000                      $3.9528
     06/27/02                     20,400                      $3.9670
     06/27/02                     19,700                      $3.9500
     06/27/02                        300                      $3.9400
     06/28/02                     15,000                      $3.8227
     06/28/02                     93,000                      $3.6388
     07/01/02                     39,000                      $3.8338
     07/02/02                     21,400                      $3.8491
     07/02/02                     10,000                      $3.7500
     07/08/02                      4,700                      $3.7500
     07/09/02                     40,900                      $3.7500
     07/10/02                      7,300                      $3.7500
     07/11/02                     30,800                      $3.7286
     07/12/02                     14,000                      $3.7357





                                    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:  July 15, 2002




                              /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:  July 15, 2002




                              /s/ J. Landis Martin
                              --------------------------------
                              J. Landis Martin
                              Signing in the
                              capacity 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:  July 15, 2002




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





                                   SCHEDULE A


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


J.  LANDIS  MARTIN,   as  president  and  chief  executive  officer  of  TREMONT
CORPORATION and NL INDUSTRIES, INC. and president of TREMONT HOLDINGS, LLC.


STEVEN L. WATSON, as president 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.
TREMONT GROUP, INC.
VALHI GROUP, INC.
VALHI, INC.



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


                                  July 15, 2002


Securities & Exchange Commission                     VIA ELECTRONIC TRANSMISSION
450 Fifth Street, N.W.
Washington, D.C.  20549

         Re:   Amendment No. 13 to Schedule 13D for Titanium Metals  Corporation
               (Exchange Act File No. 0-28538)

Ladies and Gentlemen:

     On behalf of Valhi, Inc.,  electronically  transmitted herewith is a filing
pursuant to the  provisions  of the  Securities  and  Exchange  Act of 1934,  as
amended, of the above-referenced Amendment No. 13 to Schedule 13D.

     Copies of the transmission are being sent to Titanium Metals Corporation.

     If you should  have any  questions  regarding  this  filing,  please do not
hesitate to call the undersigned at 972.450.4243.

                                        Sincerely,




                                        /s/ A. Andrew R. Louis
                                        A. Andrew R. Louis
                                        Secretary and Associate General Counsel

Enclosure

cc:  Titanium Metals Corporation                            VIA FEDERAL EXPRESS
         Attn:  Robert E. Musgraves
     Bartlit Beck Herman Palenchar & Scott                  VIA FEDERAL EXPRESS
         Attn:  James L. Palenchar