Martin Marietta Materials, Inc. Board Elects Roselyn R. Bar to Executive Vice President

RALEIGH, N.C. -- Martin Marietta Materials, Inc. (NYSE:MLM) today announced that its Board of Directors has elected Roselyn R. Bar, Senior Vice President, General Counsel and Corporate Secretary, an Executive Vice President of the Company.

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Ms. Bar joined the Company in 1994 as assistant general counsel and assistant corporate secretary. She was promoted to corporate secretary in 1997 and associate general counsel in 1998. She became deputy general counsel in 2000 and was named vice president and general counsel in 2001. Prior to today’s announcement, she had served as senior vice president, general counsel and corporate secretary since 2005. Before joining Martin Marietta, she was corporate counsel at Sun America Inc. Prior to working for Sun America, she was a corporate attorney at Skadden, Arps, Slate, Meagher & Flom in New York and Los Angeles. Ms. Bar holds a bachelor's degree from the University of Rochester and a law degree from the Brooklyn Law School. Ms. Bar serves as the Vice Chair of the Council of Counsel and as a member of the Legal Task Force of the National Stone, Sand & Gravel Association (NSSGA). She is a member of the New York, California, Florida, and American Bar Associations.

Commenting on the promotion, Ward Nye, Chairman, President and Chief Executive Officer of Martin Marietta, stated, “Roselyn Bar is a trusted counselor and advisor to our Company, not just in the area of legal affairs, but also in a host of business and governance related areas. Her dedication to Martin Marietta is exemplary, and her promotion to Executive Vice President is richly deserved. I am pleased that our Board has recognized her accomplishments with this significant recognition.”

Martin Marietta, an American-based company and a member of the S&P 500 Index, is a leading supplier of aggregates and heavy building materials, with operations spanning 26 states, Canada and the Caribbean. Dedicated teams at Martin Marietta supply the resources for the roads, sidewalks and foundations on which we live. Martin Marietta's Magnesia Specialties business provides a full range of magnesium oxide, magnesium hydroxide and dolomitic lime products. For more information, visit www.martinmarietta.com or www.magnesiaspecialties.com.