SEC FORM 4/A 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
 
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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*
SIMMONS HAROLD C

(Last) (First) (Middle)
5430 LBJ FREEWAY, SUITE 1700

(Street)
DALLAS TX 75240

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
NL INDUSTRIES INC [ NL ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director X 10% Owner
X Officer (give title below) Other (specify below)
Chairman of the Board and CEO
3. Date of Earliest Transaction (Month/Day/Year)
07/15/2010
4. If Amendment, Date of Original Filed (Month/Day/Year)
07/20/2010
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
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
Common stock $0.125 par value 07/15/2010 P 5,900 A $7.24 992,100 D
Common stock $0.125 par value 07/16/2010 P 200 A $6.99 992,300 D
Common stock $0.125 par value 07/16/2010 P 2,000 A $7 994,300 D
Common stock $0.125 par value 07/16/2010 P 100 A $6.92 994,400 D
Common stock $0.125 par value 07/16/2010 P 400 A $6.93 994,800 D
Common stock $0.125 par value 07/16/2010 P 300 A $6.94 995,100 D
Common stock $0.125 par value 07/16/2010 P 700 A $6.9499 995,800 D
Common stock $0.125 par value 07/16/2010 P 600 A $6.95 996,400 D
Common stock $0.125 par value 07/16/2010 P 2,300 A $6.9599 998,700 D
Common stock $0.125 par value 07/16/2010 P 500 A $6.96 999,200 D
Common stock $0.125 par value 07/16/2010 P 300 A $6.97 999,500 D
Common stock $0.125 par value 07/16/2010 P 100 A $6.9799 999,600 D
Common stock $0.125 par value 07/16/2010 P 200 A $6.98 999,800 D
Common stock $0.125 par value 07/16/2010 P 400 A $6.9899 1,000,200 D
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
Explanation of Responses:
Remarks:
This amendment is filed to report a purchase on July 15, 2010, and to make corresponding appropriate adjustments to Column 5 and Exhibit 99 - Additional Information. Exhibit Index Exhibit 99 - Additional Information
A. Andrew R. Louis, Attorney-in-fact, for Harold C. Simmons 07/23/2010
** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
f4anl100716hcs.txt



Exhibit 99 Additional Information





As of July 20, 2010



     Valhi, Inc. ("Valhi"), Harold C. Simmons, Harold C. Simmons' spouse and

TIMET Finance Management Company ("TFMC") are the direct holders of

approximately 83.0%, 2.1%, 0.6% and 0.5%, respectively, of the outstanding

common stock of the issuer, NL Industries, Inc. ("NL").  Titanium Metals

Corporation ("TIMET") is the sole stockholder of TFMC.



     Valhi Holding Company ("VHC"), Annette C. Simmons, The Combined Master

Retirement Trust (the "CMRT"), Harold C. Simmons, NL Industries, Inc. ("NL"),

Contran Corporation ("Contran"), Valhi, Inc. ("Valhi"), COAM Company ("COAM")

and the Harold Simmons Foundation, Inc. (the "Foundation") are the holders of

approximately 24.9%, 11.7%, 8.6%, 4.1%, 0.8%, 0.5%, 0.5%. 0.2% and less than

0.1%, respectively, of the outstanding shares of common stock of TIMET. NL's

percentage ownership of TIMET common stock includes 0.3% directly held by a

subsidiary of NL.



     VHC, TFMC, the Foundation, the Contran Amended and Restated Deferred

Compensation Trust (the "CDCT"), Harold C. Simmons, Harold C. Simmons' spouse,

the CMRT and Contran are the direct holders of 92.3%, 1.1%, 0.9%, 0.3%, 0.3%,

0.2%, 0.1% and less than 0.1%, respectively, of the common stock of Valhi.

Dixie Rice Agricultural Corporation, Inc. ("Dixie Rice") is the direct holder of

100% the outstanding common stock of VHC. Contran is the holder of 100% of the

outstanding common stock of Dixie Rice.



     Substantially all of Contran's outstanding voting stock is held by

trusts established for the benefit of certain children and grandchildren of

Harold C. Simmons (the "Trusts"), of which Mr. Simmons is the sole trustee,

or is held by Mr. Simmons or persons or entities related to Mr. Simmons.  As

sole trustee of the Trusts, Mr. Simmons has the power to vote and direct the

disposition of the shares of Contran stock held by the Trusts.  Mr. Simmons,

however, disclaims beneficial ownership of any shares of Contran stock that

the Trusts hold.



     The Foundation directly holds less than 0.1% of the outstanding shares of

TIMET common stock and 0.9% 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 CMRT directly holds approximately 8.6% of the outstanding shares of

TIMET common stock and 0.1% of the outstanding shares of Valhi common stock.

Contran sponsors the CMRT to permit the collective investment by master trusts

that maintain the assets of certain employee benefit plans Contran and related

companies adopt.  Harold C. Simmons is the sole trustee of the CMRT and a member

of the trust investment committee for the CMRT. Contran's board of directors

selects the trustee and members 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.  He disclaims beneficial ownership of any shares held

by the CMRT, except to the extent of his individual vested beneficial interest,

if any, in the assets held by the CMRT.



     The CDCT directly holds approximately 0.3% of the outstanding shares of

the common stock of Valhi.  U.S. Bank National Association serves as the

trustee of the CDCT.  Contran established the CDCT as an irrevocable "rabbi

trust" to assist Contran in meeting certain deferred compensation obligations

that it owes to Harold C. Simmons.  If the CDCT 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, Contran (i)

retains the power to vote the shares of the issuer's common stock held

directly by the CDCT, (ii) retains dispositive power over such shares and

(iii) may be deemed the indirect beneficial owner of such shares.



     Contran, Valhi and Southwest Louisiana Land LLC ("Southwest") directly hold

all of the partnership interests of COAM.  Contran is the sole member of

Southwest



     Harold C. Simmons is the chairman of the board and chief executive

officer of NL and the chairman of the board of each of TIMET, Valhi, VHC,

Dixie Rice, Southwest and Contran, and chairman of the board and chief executive

officer of NL.



     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 of

NL common stock that Valhi and TFMC hold directly. However, Mr. Simmons

disclaims beneficial ownership of the shares of NL common stock beneficially

owned, directly or indirectly, by any of such entities.



     NL and a subsidiary of NL directly own 3,604,790 shares and 1,186,200

shares, respectively, of Valhi common stock.  As already discussed, Valhi is

the direct holder of 83.0% of the outstanding shares of NL common stock.

Pursuant to Delaware law, Valhi treats the shares of Valhi common stock that

NL and the subsidiary of NL own directly as treasury stock for voting

purposes and for the purposes of this statement are not deemed outstanding.



     Harold C. Simmons' spouse is the direct owner of 292,225 shares of NL

common stock, 21,115,875 shares of TIMET common stock and 203,065 shares of

Valhi common stock. Mr. Simmons may be deemed to share indirect beneficial

ownership of such securities. Mr. Simmons disclaims beneficial ownership of all

securities that his spouse holds directly.



     Mr. Harold C. Simmons is the direct owner of 1,000,200 shares of NL common

stock, 7,422,787 shares of TIMET common stock and 313,183 shares of Valhi

common stock.



     A trust of which Harold C. Simmons and his spouse are co-trustees and

the beneficiaries are the grandchildren of his spouse, is the direct holder

of 15,432 shares of TIMET common stock and 31,800 shares of Valhi common

stock. Mr. Simmons, as co-trustee of this trust, has the power to vote and

direct the disposition of the shares the trust holds. Mr. Simmons disclaims

beneficial ownership of any shares that this trust holds.