Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
CONTRAN CORP
  2. Issuer Name and Ticker or Trading Symbol
COMPX INTERNATIONAL INC [CIX]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
5430 LBJ FRWY, SUITE 1700
3. Date of Earliest Transaction (Month/Day/Year)
10/26/2007
(Street)

DALLAS, TX 75240
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Class A common stock, par value $0.01 per share 10/26/2007   J(1)   483,600 D (1) 0 I By TFMC (2)
Class A common stock, par value $0.01 per share 10/26/2007   J(3)   2,586,820 D (3) 0 I By CGI (4)
Class B common stock, par value $0.01 per share 10/26/2007   J(3)   10,000,000 D (3) 0 I By CGI (4)
Class A common stock, par value $0.01 per share 10/26/2007   J(3)   374,000 A (3) 755,004 I By NL (5)
Class B common stock, par value $0.01 per share 10/26/2007   J(3)   10,000,000 A (3) 10,000,000 I By NL (5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
CONTRAN CORP
5430 LBJ FRWY
SUITE 1700
DALLAS, TX 75240
    X    
VALHI INC /DE/
THREE LINCOLN CENTER
5430 LBJ FREEWAY SUITE 1700
DALLAS, TX 75240
    X    
DIXIE RICE AGRICULTURE CORP INC
600 PASQUIERE ST
GUEYDAN, LA 70542
    X    
SOUTHWEST LOUISIANA LAND CO INC
402 CANAL ST
HOUMA, LA 70360
    X    
NATIONAL CITY LINES INC
5430 LBJ FREEWAY
SUITE 1700
DALLAS, TX 75240
    X    
NL INDUSTRIES INC
5430 LBJ FREEWAY
SUITE 1700
DALLAS, TX 75240-2697
    X    
NOA INC
5430 LBJ FREEWAY
SUITE 1700
DALLAS, TX 75240
    X    
VALHI GROUP INC
5430 LBJ FREEWAY
SUITE 1700
DALLAS, TX 75240
    X    
VALHI HOLDING CO
5430 LBJ FREEWAY
SUITE 1700
DALLAS, TX 75240
    X    
SIMMONS HAROLD C
THREE LINCOLN CENTRE
5430 LBJ FREEWAY STE 1700
DALLAS, TX 75240-2697
    X    

Signatures

 A. Andrew R. Louis, Secretary, for Contran Corporation   10/30/2007
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for Valhi, Inc.   10/30/2007
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for Dixie Rice Agricultural Corporation, Inc.   10/30/2007
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for Southwest Louisiana Land Company, Inc.   10/30/2007
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for National City Lines, Inc.   10/30/2007
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for NL Industries, Inc.   10/30/2007
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for NOA, Inc.   10/30/2007
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for Valhi Group, Inc.   10/30/2007
**Signature of Reporting Person Date

 A. Andrew R. Louis, Secretary, for Valhi Holding Company   10/30/2007
**Signature of Reporting Person Date

 A. Andrew R. Louis, Attorney-in-fact, for Harold C. Simmons   10/30/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) On October 26, 2007, the issuer purchased (the "Stock Purchase") from TIMET Finance Management Company ("TFMC") pursuant to a Stock Purchase Agreement dated October 16, 2007 483,600 shares of the issuer's class A common stock ("Class A Common Stock") for a purchase price of $19.50 per share that was paid in the form of a promissory note in the original principal amount of $9,430,200 payable by the issuer to TFMC (the "Stock Purchase Promissory Note"). Pursuant to Rule 16b-3 promulgated under the Securities Exchange Act of 1934, as amended, the issuer's board of directors exempted the sale and purchase in the Stock Purchase from Section 16(b).
(2) Formerly held by TFMC. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship of TFMC to the persons joining in this filing.
(3) On October 26, 2007, CompX Group, Inc. ("CGI") merged (the "Merger") with and into CompX KDL LLC, a wholly owned subsidiary of the issuer that survived the Merger ("CompX KDL"). Pursuant to the Merger, among other things, 2,586,820 shares of Class A Common Stock and 10.0 million shares of the issuer's class B common stock, par value $0.01 per share (the "Class B Common Stock"), owned by CGI immediately prior to Merger were automatically canceled and the issuer issued to NL Industries, Inc., a former stockholder of CGI that is related to the issuer ("NL"), 374,000 new shares of CompX Class A Common Stock and 10,000,000 new shares of CompX Class B Common Stock. Pursuant to Rule 16b-3, the issuer's board of directors exempted the cancellation in the Merger of the shares of Class A and Class B Common Stock formerly held by CGI and the issuance in the Merger of the Class A and Class B Common Stock to NL.
(4) Formerly held by CGI. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship of CGI to the persons joining in this filing.
(5) Directly held by NL. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships among the persons joining in this filing.
 
Remarks:
Mr.  Harold C.  Simmons  and his spouse  directly  hold 66,900 and
20,000  shares,  respectively,  of the Class A Common  Stock of the issuer.  Mr.
Simmons  disclaims  beneficial  ownership of the shares of the  issuer's  common
stock that his spouse owns.

Exhibit Index
Exhibit 99 - Additional Information

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