X0306 5 2014-12-31 0 0 0000072162 NL INDUSTRIES INC NL 0001302221 Simmons Annette C 5430 LBJ FREEWAY, SUITE 1700 DALLAS TX 75240 0 0 1 0 Common Stock, par value $0.01 per share 2014-08-29 5 J 0 559045 A 1482208 D Common Stock, par value $0.01 per share 40387531 I By Valhi Common Stock, par value $0.01 per share 2000 I by Kronos On August 29, 2014, Annette C. Simmons, the independent executor of the estate of Harold C.Simmons and the sole beneficiary of Mr. Simmons's individual retirement account ("IRA") upon his death, transferred the 559,045 shares of the issuer's common stock held in his IRA to her IRA. As the independent executor of such estate and the sole beneficiary of such IRA, Ms. Simmons had already beneficially owned such shares as of the date of such transfer. Consists of 496,562 shares directly held by the estate of Harold C. Simmons of which Annette C. Simmons is the independent executor and the designated legatee of these shares and 985,646 shares she holds directly (which includes the 559,405 shares transferred from Mr. Simmons's IRA to her IRA on August 29, 2014). See Exhibit 99.1 to this statement for a description of the relationships among the reporting owners. Directly held by Valhi, Inc. See the Additional Information filed as Exhibit 99.1 to this statement for a description of the relationship of additional persons who may be deemed to beneficially own these shares. Directly held by Kronos Worldwide, Inc. See the Additional Information filed as Exhibit 99.1 to this statement for a description of the relationship of additional persons who may be deemed to beneficially own these shares. Exhibit Index A. Andrew R. Louis, Attorney-in-fact for, Annette C. Simmons 2015-03-31