SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* CONTRAN CORP (Last) (First) (Middle) 5430 LBJ FRWY SUITE 1700 (Street) DALLAS TX 75240 (City) (State) (Zip)	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)
	3. Date of Earliest Transaction (Month/Day/Year) 04/21/2006
	4. If Amendment, Date of 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

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 $0.01 par value	04/21/2006		J(1)		100	A	$15.2	260,104	I	by NL(2)
Class A Common Stock $0.01 par value	04/21/2006		J(1)		900	A	$15.5	261,004	I	by NL(2)
Class A Common Stock $0.01 par value	04/21/2006		J(1)		1,700	A	$15.68	262,704	I	by NL(2)
Class A Common Stock $0.01 par value	04/24/2006		J(1)		200	A	$16	262,904	I	by NL(2)
Class A Common Stock $0.01 par value								483,600	I	by TFMC(3)
Class A Common Stock $0.01 par value								2,586,820	I	by CGI(4)

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 Securities Underlying Derivative Security (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: 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

1. Name and Address of Reporting Person* CONTRAN CORP (Last) (First) (Middle) 5430 LBJ FRWY SUITE 1700 (Street) DALLAS TX 75240 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* VALHI INC /DE/ (Last) (First) (Middle) THREE LINCOLN CENTER 5430 LBJ FREEWAY SUITE 1700 (Street) DALLAS TX 75240 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* DIXIE RICE AGRICULTURE CORP INC (Last) (First) (Middle) 600 PASQUIERE ST (Street) GUEYDAN LA 70542 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* SOUTHWEST LOUISIANA LAND CO INC (Last) (First) (Middle) 402 CANAL ST (Street) HOUMA LA 70360 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* TIMET FINANCE MANAGEMENT CO (Last) (First) (Middle) 913 N MARKET ST SUITE 217 (Street) WILMINGTON DE 19801 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* TITANIUM METALS CORP (Last) (First) (Middle) TITANIUM METALS CORP 1999 BROADWAY SUITE 4300 (Street) DENVER CO 80202 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* NATIONAL CITY LINES INC (Last) (First) (Middle) 5430 LBJ FREEWAY SUITE 1700 (Street) DALLAS TX 75240 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* NL INDUSTRIES INC (Last) (First) (Middle) 5430 LBJ FREEWAY SUITE 1700 (Street) DALLAS TX 75240-2697 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* CompX Group, Inc. (Last) (First) (Middle) 5430 LBJ FREEWAY, SUITE 1700 (Street) DALLAS TX 75240-2697 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* SIMMONS HAROLD C (Last) (First) (Middle) THREE LINCOLN CENTRE 5430 LBJ FREEWAY STE 1700 (Street) DALLAS TX 75240-2697 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Open market purchase by NL Industries, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships among the persons joining in this filing.

2. Directly held by NL Industries, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships among the persons joining in this filing.

3. Directly held by TIMET Finance Management Company. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships among the persons joining in this filing.

4. Directly held by CompX Group, Inc. 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 56,900 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. This form is also filed on behalf of: Tremont LLC, 5430 LBJ Freeway, Suite 1700, Dallas, TX 75240, By: /s/ A. Andrew R. Louis, Secretary (signed 04/24/2006), NOA, Inc., 5430 LBJ Freeway, Suite 1700, Dallas, TX 75240, By: /s/ A. Andrew R. Louis, Secretary (signed 04/24/2006), Dixie Holding, Inc., 5430 LBJ Freeway, Suite 1700, Dallas, TX 75240, By: /s/ A. Andrew R. Louis, Secretary (signed 04/24/2006), Valhi Group, Inc., 5430 LBJ Freeway, Suite 1700, Dallas, TX 75240, By: /s/ A. Andrew R. Louis, Secretary (signed 04/24/2006) and Valhi Holding Company, 5430 LBJ Freeway, Suite 1700, Dallas, TX 75240, By: /s/ A. Andrew R. Louis, Secretary (signed 04/24/2006). See the Additional Information filed as Exhibit 99 to this statement for a description of the relationships among the persons joining in this filing. Exhibit Index Exhibit 99 - Additional Information

	A. Andrew R. Louis, Secretary, for Contran Corporation	04/24/2006
	A. Andrew R. Louis, Secretary, for Valhi, Inc.	04/24/2006
	A. Andrew R. Louis, Secretary, for Dixie Rice Agricultural Corporation, Inc.	04/24/2006
	A. Andrew R. Louis, Secretary, for Southwest Louisiana Land Company, Inc.	04/24/2006
	Gregory M. Swalwell, Vice President, TIMET Finance Management Company	04/24/2006
	A. Andrew R. Louis, Assistant Secretary, for Titanium Metals Corporation	04/24/2006
	A. Andrew R. Louis, Secretary, for National City Lines, Inc.	04/24/2006
	A. Andrew R. Louis, Assistant Secretary, for NL Industries, Inc.	04/24/2006
	A. Andrew R. Louis, Secretary, for CompX Group, Inc.	04/24/2006
	A. Andrew R. Louis, Attorney-in-fact, for Harold C. Simmons	04/24/2006
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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