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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
72162	Nl Industries Inc	NL	Industrial Inorganic Chemicals (2810)	135267260

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1037854	C Harold Simmons	5430 Lbj Freeway, Suite 1700 Dallas TX 75240	Chairman Of The Board And Ceo	Yes	Yes	Yes	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock $0.125 Par Value	Acquisiton	2011-01-21	700	$11.55	1,007,845	No	4	P	Direct
Common Stock $0.125 Par Value	Acquisiton	2011-01-21	1,300	$11.58	1,009,145	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct
No	4	P	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock $0.125 Par Value	40,387,531	Indirect	by Valhi
Common Stock $0.125 Par Value	222,100	Indirect	by TFMC
Common Stock $0.125 Par Value	292,225	Indirect	by Spouse
Common Stock $0.125 Par Value	2,000	Indirect	by Kronos

Footnotes

Directly held by Valhi, Inc. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.
Directly held by TIMET Finance Management Company. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.
Directly held by the reporting person's spouse. Mr. Simmons disclaims beneficial ownership of any shares of the issuer's common stock that his spouse holds.
Directly held by Kronos Worldwide, Inc.. See the Additional Information filed as Exhibit 99 to this statement for a description of the relationship to the reporting person.