SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D Under the Securities Exchange Act of 1934 (Amendment No. 18)* TREMONT CORPORATION (Name of Issuer) Common Stock, $1.00 par value (Title of Class of Securities) 894745 20 7 (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) September 19, 2001 (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. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Tremont Group, Inc. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 3 SEC USE ONLY 4 SOURCE OF FUNDS (SEE INSTRUCTIONS) OO 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 5,141,421 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,141,421 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,141,421 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.0% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Tremont Holdings, LLC 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 Delaware 7 SOLE VOTING POWER -0- NUMBER OF SHARES 8 SHARED VOTING POWER BENEFICIALLY OWNED BY 5,149,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,149,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,149,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) OO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON NL Industries, Inc. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 New Jersey 7 SOLE VOTING POWER -0- NUMBER OF SHARES 8 SHARED VOTING POWER BENEFICIALLY OWNED BY 5,149,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,149,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,149,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Valhi, Inc. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 3 SEC USE ONLY 4 SOURCE OF FUNDS (SEE INSTRUCTIONS) WC and BK 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,154,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Valhi Group, Inc. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,154,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON National City Lines, Inc. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,154,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON NOA, Inc. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,154,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Dixie Holding Company 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,154,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Dixie Rice Agricultural Corporation, Inc. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,154,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Southwest Louisiana Land Company, Inc. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,154,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Contran Corporation 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,154,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Harold Simmons Foundation, Inc. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,154,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON The Combined Master Retirement Trust 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,154,588 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) [ ] 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 80.2% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) EP CUSIP No. 894745 20 7 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Harold C. Simmons 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP(SEE INSTRUCTIONS) (a) [ ] (b) [ ] 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 5,154,588 EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH -0- 10 SHARED DISPOSITIVE POWER 5,154,588 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. 18 TO SCHEDULE 13D This amended statement on Schedule 13D (this "Statement") relates to the common stock, par value $1.00 per share (the "Shares"), of Tremont Corporation, a Delaware corporation (the "Company"). Items 2, 3, 4, 5, 6 and 7 of this Statement are hereby amended as set forth below. Item 2. Identity and Background. Item 2 is amended as follows. (a) This Statement is filed (i) by Tremont Group, Inc. ("TGI"), Tremont Holdings, LLC ("TRE Holdings") and Valhi, Inc. ("Valhi") as the direct holders of Shares, (ii) by virtue of the direct and indirect ownership of securities of TGI, by TRE Holdings and Valhi, NL Industries, Inc ("NL"), 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 Harold Simmons Foundation, Inc. (the "Foundation") and the Combined Master Retirement Trust (the "CMRT") 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. TGI, TRE Holdings and Valhi are the holders of approximately 80.0%, 0.1% and 0.1%, respectively, of the 6,424,858 Shares outstanding as of July 31, 2001 according to the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2001 (the "Outstanding Shares"). Together, TGI, TRE Holdings and Valhi may be deemed to control the Company. Valhi and TRE Holdings are the direct holders of 80.0% and 20.0%, respectively of the outstanding common stock of TGI. Together Valhi and TRE Holdings may be deemed to control TGI. NL is the sole member of TRE Holdings and may be deemed to control TRE Holdings. Valhi and the Company are the direct holders of approximately 60.9% and 20.6%, 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 81.7%, 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 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 owed 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 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. 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 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 the Company. 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 69,475 shares of NL common stock and 77,000 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. Certain information concerning the directors and executive officers of the Reporting Persons, including offices held by Mr. Simmons is set forth on Schedule B attached hereto and incorporated herein by reference. (d) None of the Reporting Persons or, to the best knowledge of such persons, any of the persons named in Schedule B to this Statement has been convicted in a criminal proceeding in the past five years (excluding traffic violations or similar misdemeanors). (e) None of the Reporting Persons or, to the best knowledge of such persons, any person named in Schedule B to this Statement, was a party to a civil proceeding of a judicial or administrative body of competent jurisdiction as a result of which such person was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. (f) Harold C. Simmons and all the persons named on Schedule B to this Statement are citizens of the United States, except as otherwise indicated on such Schedule. Item 3. Source and Amount of Funds or Other Consideration. Item 3 is amended as follows. The Reporting Persons understand that the funds required by the persons named in Schedule B to this Statement to acquire Shares (other than Shares Harold C. Simmons may be deemed to own beneficially) were from such person's personal funds. Item 4. Purpose of Transaction. Item 4 is amended as follows. On September 19, 2001, Valhi sent a letter to the Company and Titanium Metals Corporation, a subsidiary of the Company ("TIMET"), proposing to sell each of Valhi's and the Company's shares of NL common stock to TIMET for shares of TIMET common stock and TIMET debt securities on terms to be appropriately determined. A copy of the letter is attached hereto as Exhibit 10 and incorporated herein by reference. On September 21, 2001, Valhi issued a press release stating that Valhi would not approve any transaction that may be negotiated with an independent committee of TIMET's board of directors and its advisors without the affirmative vote of a majority of the TIMET shares voting that are held by persons other than Valhi, the Company and their affiliates. There is no assurance that any transaction will be consummated under the terms of the proposed offer 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. The information included in Item 6 of this Statement is incorporated herein by reference. The Reporting Persons understand that prior purchases of Shares by each of the persons named in Schedule B to this Statement (other than Harold C. Simmons) were made for the purpose of each such person's personal investment. Certain of the persons named in Schedule B to this Statement, namely J. Landis Martin, Harold C. Simmons, Glenn R. Simmons, Thomas P. Stafford, and Steven L. Watson are directors or officers of the Company and may acquire Shares from time to time pursuant to benefit plans that the Company sponsors or other compensation arrangements with the Company. Except as described in this Item 4, none of the Reporting Persons nor, to the best knowledge of such persons, any other person named in Schedule B to the this Statement has formulated any plans or proposals that relate to or would result in any matter required to be disclosed in response to paragraphs (a) through (j) of Item 4 of Schedule 13D. Item 5. Interest in Securities of the Issuer. Item 5 is amended as follows. (a) TGI, TRE Holdings and Valhi are the beneficial owners of 5,141,421 of the Shares (approximately 80.0% of the Outstanding Shares), 8,167 of the Shares (approximately 0.1% of the Outstanding Shares) and 5,000 of the Shares (approximately 0.1% of the Outstanding Shares), respectively. By virtue of the relationships described under Item 2 of this Statement: (1) TRE Holdings and NL may each be deemed to be the beneficial owner of the 5,149,588 Shares (approximately 80.2% of the Outstanding Shares) that TGI and TRE Holdings directly hold; and (2) Valhi, VGI, National, NOA, Dixie Holding, Dixie Rice, Southwest, Contran, the Foundation, the CMRT and Harold C. Simmons may each be deemed to be the beneficial owner of the 5,154,588 Shares (approximately 80.2% of the Outstanding Shares) that TGI, TRE Holdings and Valhi directly hold. Mr. Simmons disclaims beneficial ownership of all Shares. The Reporting Persons understand, based on ownership filings with the Securities and Exchange Commission (the "Commission") or upon information provided by the persons listed on Schedule B to this Statement, that such persons may be deemed to own beneficially the Shares as indicated on Schedule C to this Statement. (b) By virtue of the relationships described in Item 2: (1) TGI may be deemed to share the power to vote and direct the disposition of the Shares that TGI directly holds; (2) TRE Holdings and NL may each be deemed to share the power to vote and direct the disposition of the Shares that TGI and TRE Holdings directly hold; and (3) Valhi, VGI, National, NOA, Dixie Holding, Dixie Rice, Southwest, Contran, the Foundation, the CMRT and Harold C. Simmons may each be deemed to share the power to vote and direct the disposition of the Shares that TGI, TRE Holdings and Valhi directly hold. (d) Each of TGI, TRE Holdings and Valhi has the right to receive and the power to direct the receipt of dividends from, and proceeds from the sale of, the 5,141,421, 8,167 and 5,000 Shares, respectively, held by such entity. Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer. Item 6 is amended as follows. The information included in Item 4 of this Statement is hereby incorporated herein by reference. Except for the provisions and agreements previously described in this item, none of the Reporting Persons or, to the best knowledge of such persons, any person named in Schedule B to this Statement has any contract, arrangement, understanding or relationship (legal or otherwise) with any person with respect to securities of the Company, including, but not limited to, transfer or voting of any such securities, finder's fees, joint ventures, loans or option arrangements, puts or calls, guarantees of profits, division of profits or losses, or the giving or withholding of proxies. Item 7. Material to be Filed as Exhibits. Item 7 is amended and restated as follows. Exhibit 1 Credit Agreement dated as of November 6, 1998 among Valhi, Inc., the financial institutions from time to time that are a party thereto and Societe Generale, Southwest Agency, as the administrative agent, issuing bank and arranger (incorporated by reference to Exhibit 1 to Amendment No. 59 to the Schedule 13D filed on November 23, 1999 with the Securities and Exchange Commission by Tremont Corporation, Valmont Insurance Company, Valhi, Inc., Valhi Group, Inc., National City Lines, Inc., NOA, Inc., Dixie Holding Company, Dixie Rice Agricultural Corporation, Inc., Southwest Louisiana Land Company, Inc., Contran Corporation, The Combined Master Retirement Trust, the Harold Simmons Foundation, Inc. and Harold C. Simmons with respect to the common stock, par value $0.125 per share, of NL Industries, Inc.). Exhibit 2 First Amendment Agreement dated as of November 5, 1999 among Valhi, Inc., the financial institutions from time to time that are a party thereto and Societe Generale, Southwest Agency, as the administrative agent, issuing bank and arranger (incorporated by reference to Exhibit 2 to Amendment No. 60 to the Schedule 13D filed on December 14, 1999 with the Securities and Exchange Commission by Tremont Corporation, Valmont Insurance Company, Valhi, Inc., Valhi Group, Inc., National City Lines, Inc., NOA, Inc., Dixie Holding Company, Dixie Rice Agricultural Corporation, Inc., Southwest Louisiana Land Company, Inc., Contran Corporation, The Combined Master Retirement Trust, the Harold Simmons Foundation, Inc. and Harold C. Simmons with respect to the common stock, par value $0.125 per share, of NL Industries, Inc.). Exhibit 3 Second Amendment Agreement dated as of November 3, 2000 among Valhi, Inc., the financial institutions from time to time that are a party thereto and U.S. Bank National Association as the administrative agent, issuing bank and arranger (incorporated by reference to Exhibit 3 to Amendment No. 15 to this Statement). Exhibit 4 Form of Accession Agreement dated as of December 1, 2000 among Valhi, Inc., the Banks and U.S. Bank National Association, as the administrative agent of the banks, and the related promissory note in the original principal amount of $5.0 million payable to the order of Texas Capital Bank (incorporated by reference to Exhibit 4 to Amendment No. 63 to the Schedule 13D filed on September 25, 2001 with the Securities and Exchange Commission by Tremont Corporation, Tremont Group, Inc., Tremont Holdings, LLC, Valhi, Inc., Valhi Group, Inc., National City Lines, Inc., NOA, Inc., Dixie Holding Company, Dixie Rice Agricultural Corporation, Inc., Southwest Louisiana Land Company, Inc., Contran Corporation, The Combined Master Retirement Trust, the Harold Simmons Foundation, Inc. and Harold C. Simmons with respect to the common stock, par value $0.125 per share, of NL Industries, Inc.). Exhibit 5 Stock Purchase Agreement dated as of November 7, 2000 between Valhi, Inc. and J. Landis Martin (incorporated by reference to Exhibit 4 to Amendment No. 16 to this Statement). Exhibit 6 Certificate of Incorporation of Tremont Group, Inc. (incorporated by reference to Exhibit 5 to Amendment No. 17 to this Statement). Exhibit 7 Voting Agreement dated as of December 31, 2000 between Valhi, Inc. and Tremont Holdings, LLC (incorporated by reference to Exhibit 6 to Amendment No. 17 to this Statement). Exhibit 8 Tax Sharing Purchase Agreement dated as of January 1, 2001 among Valhi, Inc., Contran Corporation and NL Industries, Inc. (incorporated by reference to Exhibit 7 to Amendment No. 17 to this Statement). Exhibit 9 Tax Sharing Purchase Agreement dated as of January 1, 2001 among Valhi, Inc., Contran Corporation and Tremont Corporation (incorporated by reference to Exhibit 8 to Amendment No. 17 to this Statement). Exhibit 10* Letter dated September 19, 2001 from Valhi, Inc. to the board of directors of Titanium Metals Corporation and Tremont Corporation. ---------- * Filed herewith. 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: September 26, 2001 /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: September 26, 2001 /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: September 26, 2001 /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 of each of: NL INDUSTRIES, INC. 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. Schedule B Schedule B is hereby amended and restated as follows: The names of the directors and executive officers of Contran Corporation ("Contran"), Dixie Holding Company ("Dixie Holding"), Dixie Rice Agricultural Corporation, Inc. ("Dixie Rice"), the Harold Simmons Foundation, Inc. (the "Foundation"), National City Lines, Inc. ("National"), NL Industries, Inc. ("NL"), NOA, Inc. ("NOA"), Southwest Louisiana Land Company, Inc. ("Southwest"), Tremont Group, Inc. ("TGI"), Valhi Group, Inc. ("VGI") and Valhi, Inc. ("Valhi"), and their present principal occupations are set forth below. Except as otherwise indicated, each such person is a citizen of the United States of America and the business address of each such person is 5430 LBJ Freeway, Suite 1700, Dallas, Texas 75240. Name Present Principal Occupation ----------------------------- --------------------------------- Susan E. Alderton (1) Vice president, treasurer and chief financial officer of NL; and a director of Tremont Corporation (the "Company"). Eugene K. Anderson Vice president of Contran, Dixie Holding, Dixie Rice, NOA, National, Southwest, TGI, VGI and Valhi; and treasurer of the Foundation. Thomas E. Barry (2) Vice president for executive affairs at Southern Methodist University and professor of marketing in the Edwin L. Cox School of Business at Southern Methodist University; and a director of Valhi. Norman S. Edelcup (3) Senior vice president business development of Florida Savings Bancorp; director of Valhi; and trustee of the Baron Funds, a mutual fund group. Lisa Simmons Epstein Director and president of the Foundation. David B. Garten (4) Vice president, general counsel and secretary of NL; and vice president and secretary of Tremont Holdings, LLC ("TRE Holdings"). Edward J. Hardin (5) Partner of the law firm of Rogers & Hardin LLP; and a director of Valhi. Robert D. Hardy (4) Vice president and controller of NL and TRE Holdings. J. Mark Hollingsworth Vice president and general counsel of Contran, Dixie Holding, Dixie Rice, NOA, National, Southwest, TGI, VGI and Valhi; general counsel of the Foundation, CompX International Inc., a manufacturer of ergonomic computer support systems, precision ball bearing slides and security products that is affiliated with Valhi ("CompX"), and The Combined Master Retirement Trust, a trust Valhi established to permit the collective investment by master trusts that maintain the assets of certain employee benefit plans Valhi and related companies adopt (the "CMRT"); and acting general counsel of Keystone Consolidated Industries, Inc. ("Keystone"), a manufacturer of steel rod, wire and wire products that is affiliated with Contran. Keith A. Johnson Controller of the Foundation. William J. Lindquist Director and senior vice president of Contran, Dixie Holding, NOA, National, TGI and VGI; senior vice president of Dixie Rice, Southwest and Valhi. A. Andrew R. Louis Secretary of Contran, CompX, Dixie Holding, Dixie Rice, NOA, National, Southwest, TGI, VGI and Valhi. Kelly D. Luttmer Tax director of Contran, CompX, Dixie Holding, Dixie Rice, NOA, National, Southwest, TGI, VGI and Valhi. J. Landis Martin (6) President, chief executive officer and a director of NL; president of TRE Holdings; chairman of the board, president and chief executive officer of the Company and Titanium Metals Corporation, a producer of titanium metals products that is affiliated with the Company ("TIMET"). Andrew McCollam, Jr. (7) President and a director of Southwest; director of Dixie Rice; and a private investor. Harold M. Mire (8) Vice president of Dixie Rice and Southwest. Bobby D. O'Brien Vice president and treasurer of Contran, Dixie Holding, Dixie Rice, NOA, National, TGI, VGI and Valhi; and vice president of Southwest. Kenneth R. Peak (9) President, chief executive officer and chairman of the board of Contango Oil & Gas Company, a publicly traded independent oil and gas exploration and production company; and a director of NL. Glenn R. Simmons Vice chairman of the board of Contran, Dixie Holding, NOA, National, TGI, VGI and Valhi; chairman of the board of CompX and Keystone; director and executive vice president of Southwest and Dixie Rice; and a director of NL, TIMET and the Company. Harold C. Simmons Chairman of the board and chief executive officer of Contran, Dixie Holding, Dixie Rice, the Foundation, NOA, National, Southwest, TGI, VGI and Valhi; chairman of the board of NL; director of the Company; and trustee and member of the trust investment committee of the CMRT. Richard A. Smith (8) Director and president of Dixie Rice. Thomas P. Stafford (10) Co-founder of Stafford, Burke and Hecker, Inc., a consulting company; director of NL, TIMET and the Company; and a director of CMI Corporation and The Wackenhut Corp. Gregory M. Swalwell Vice president and controller of Contran, Dixie Holding, NOA, National, TGI, VGI and Valhi; and vice president of Dixie Rice and Southwest. J. Walter Tucker, Jr. (11) President, treasurer and a director of Tucker & Branham, Inc., a mortgage banking, insurance and real estate company; vice chairman of the board of Keystone; a director of Valhi; and a member of the trust investment committee of the CMRT. Steven L. Watson Director and president of Contran, Dixie Holding, NOA, National, TGI, VGI and Valhi; director and executive vice president of Dixie Rice and Southwest; director, vice president and secretary of the Foundation; and a director of the Company, NL and TIMET. Lawrence A. Wigdor (4) Director and executive vice president of NL. ---------- (1) The principal business address for Ms. Alderton is 70 East 55th Street, 8th Floor, New York, New York 10022. (2) The principal business address for Dr. Barry is Southern Methodist University, Perkins Administration Bldg. #224, Dallas, Texas 75275. (3) The principal business address for Mr. Edelcup is 8181 Southwest 117th Street, Pinecrest, Florida 33156. (4) The principal business address for Messrs. Garten, Hardy and Wigdor is Two Greenspoint Plaza, 16825 Northchase Drive, Suite 1200, Houston, Texas 77060. (5) The principal business address for Mr. Hardin is 229 Peachtree Street, N.E., Suite 2700, Atlanta, Georgia 30303. (6) The principal business address for Mr. Martin is 1999 Broadway, Suite 4300, Denver, Colorado 80202. (7) The principal business address for Mr. McCollam is 402 Canal Street, Houma, Louisiana 70360. (8) The principal business address for Messrs. Mire and Smith is 600 Pasquiere Street, Gueydan, Louisiana 70542-0010. (9) The principal business address for Mr. Peak is 3700 Buffalo Speedway, Suite 960, Houston, Texas 77098. (10) The principal business address for Gen. Stafford is 1006 Cameron Street, Alexandria, Virginia 22314. (11) The principal business address for Mr. Tucker is 400 E. Central Boulevard, Orlando, Florida 32801. SCHEDULE C Schedule C is hereby amended and restated as follows: Based upon ownership filings with the Commission or upon information provided by the persons listed on Schedule B to this Statement, such persons may be deemed to own personally and beneficially Shares, as outlined below: Shares Options Name Held Held (1) Total -------------------------- ----------- ----------- ----------- Susan E. Alderton (2) 727 -0- 727 Eugene K. Anderson -0- -0- -0- Thomas E. Barry -0- -0- -0- Norman S. Edelcup -0- -0- -0- Lisa Simmons Epstein 298 -0- 298 David B. Garten 500 -0- 500 Edward J. Hardin -0- -0- -0- Robert D. Hardy 318 -0- 318 J. Mark Hollingsworth -0- -0- -0- Keith A. Johnson 100 -0- 100 William J. Lindquist -0- -0- -0- A. Andrew R. Louis -0- -0- -0- Kelly D. Luttmer -0- -0- -0- J. Landis Martin (3) 41,109 60,000 101,109 Andrew McCollam, Jr. -0- -0- -0- Harold M. Mire -0- -0- -0- Bobby D. O'Brien -0- -0- -0- Kenneth R. Peak -0- -0- -0- Glenn R. Simmons 19 -0- 19 Harold C. Simmons (4) -0- -0- -0- Richard A. Smith 30 -0- 30 Thomas P. Stafford -0- 4,000 4,000 Gregory M. Swalwell -0- -0- -0- J. Walter Tucker, Jr. (5) 1,125 -0- 1,125 Steven L. Watson 4,474 -0- 4,474 Lawrence A. Wigdor -0- -0- -0- ---------- (1) Represents Shares issuable pursuant to the exercise of stock options within 60 days of the date of this Statement. (2) Includes 11 Shares held by the trustee for the benefit of Ms. Alderton under the NL Industries, Inc. Retirement Savings Plan (the "NL Savings Plan"). (3) Includes 520 Shares held by the trustee for the benefit of Mr. Martin under the NL Savings Plan. (4) Mr. Simmons may also be deemed to possess indirect beneficial ownership of the Shares described in Item 5(a) of this Statement. Mr. Simmons disclaims beneficial ownership of all Shares. (5) Includes 525 Shares held by Statewide Guaranty Title Company of which Mr. Tucker owns 100% of the outstanding common stock. Exhibit Index Exhibit 1 Credit Agreement dated as of November 6, 1998 among Valhi, Inc., the financial institutions from time to time that are a party thereto and Societe Generale, Southwest Agency, as the administrative agent, issuing bank and arranger (incorporated by reference to Exhibit 1 to Amendment No. 59 to the Schedule 13D filed on November 23, 1999 with the Securities and Exchange Commission by Tremont Corporation, Valmont Insurance Company, Valhi, Inc., Valhi Group, Inc., National City Lines, Inc., NOA, Inc., Dixie Holding Company, Dixie Rice Agricultural Corporation, Inc., Southwest Louisiana Land Company, Inc., Contran Corporation, The Combined Master Retirement Trust, the Harold Simmons Foundation, Inc. and Harold C. Simmons with respect to the common stock, par value $0.125 per share, of NL Industries, Inc.). Exhibit 2 First Amendment Agreement dated as of November 5, 1999 among Valhi, Inc., the financial institutions from time to time that are a party thereto and Societe Generale, Southwest Agency, as the administrative agent, issuing bank and arranger (incorporated by reference to Exhibit 2 to Amendment No. 60 to the Schedule 13D filed on December 14, 1999 with the Securities and Exchange Commission by Tremont Corporation, Valmont Insurance Company, Valhi, Inc., Valhi Group, Inc., National City Lines, Inc., NOA, Inc., Dixie Holding Company, Dixie Rice Agricultural Corporation, Inc., Southwest Louisiana Land Company, Inc., Contran Corporation, The Combined Master Retirement Trust, the Harold Simmons Foundation, Inc. and Harold C. Simmons with respect to the common stock, par value $0.125 per share, of NL Industries, Inc.). Exhibit 3 Second Amendment Agreement dated as of November 3, 2000 among Valhi, Inc., the financial institutions from time to time that are a party thereto and U.S. Bank National Association as the administrative agent, issuing bank and arranger (incorporated by reference to Exhibit 3 to Amendment No. 15 to this Statement). Exhibit 4 Form of Accession Agreement dated as of December 1, 2000 among Valhi, Inc., the Banks and U.S. Bank National Association, as the administrative agent of the banks, and the related promissory note in the original principal amount of $5.0 million payable to the order of Texas Capital Bank (incorporated by reference to Exhibit 4 to Amendment No. 63 to the Schedule 13D filed on September 25, 2001 with the Securities and Exchange Commission by Tremont Corporation, Tremont Group, Inc., Tremont Holdings, LLC, Valhi, Inc., Valhi Group, Inc., National City Lines, Inc., NOA, Inc., Dixie Holding Company, Dixie Rice Agricultural Corporation, Inc., Southwest Louisiana Land Company, Inc., Contran Corporation, The Combined Master Retirement Trust, the Harold Simmons Foundation, Inc. and Harold C. Simmons with respect to the common stock, par value $0.125 per share, of NL Industries, Inc.). Exhibit 5 Stock Purchase Agreement dated as of November 7, 2000 between Valhi, Inc. and J. Landis Martin (incorporated by reference to Exhibit 4 to Amendment No. 16 to this Statement). Exhibit 6 Certificate of Incorporation of Tremont Group, Inc. (incorporated by reference to Exhibit 5 to Amendment No. 17 to this Statement). Exhibit 7 Voting Agreement dated as of December 31, 2000 between Valhi, Inc. and Tremont Holdings, LLC (incorporated by reference to Exhibit 6 to Amendment No. 17 to this Statement). Exhibit 8 Tax Sharing Purchase Agreement dated as of January 1, 2001 among Valhi, Inc., Contran Corporation and NL Industries, Inc. (incorporated by reference to Exhibit 7 to Amendment No. 17 to this Statement). Exhibit 9 Tax Sharing Purchase Agreement dated as of January 1, 2001 among Valhi, Inc., Contran Corporation and Tremont Corporation (incorporated by reference to Exhibit 8 to Amendment No. 17 to this Statement). Exhibit 10* Letter dated September 19, 2001 from Valhi, Inc. to the board of directors of Titanium Metals Corporation and Tremont Corporation. ---------- * Filed herewith.