Effective February 20, 2013, NL Industries Inc.'s board of directors elected Robert D. Graham as vice chairman of the board, president and chief executive officer and Steven L Watson as chairman of the board, each to serve at the pleasure of the board of directors. Watson was formerly the company's vice chairman of the board and chief executive officer and Mr. Graham was formerly the company's president. Robert D. Graham served as the company's president since May 2013 and previously served as the company's vice president and general counsel from 2003 to May 2013.

He has served as the executive vice president of Kronos Worldwide Inc. and previously served as its chief administrative officer from 2012 to May 2013, its general counsel from prior to 2009 to 2012 and its vice president in 2009 and prior years. From 2010 to 2012, Mr. Graham served as executive vice president of CompX International Inc. He served as the executive vice president of Titanium Metals Corporation, from prior to 2009 to 2012 and CompX's executive vice president from 2010 to 2012. He has served as vice president of Contran and Valhi since 2002.

Effective February 20, 2014, the company's board of directors increased the size of its board from five to six and elected Loretta J. Feehan and Robert D. Graham to fill an existing vacancy and the newly created vacancy, each to serve as a director until her or his successor is elected and qualified or her or his earlier resignation, removal or death.