Martin Marietta Declares Regular Cash Dividend

RALEIGH, N.C., Feb. 22, 2018 (GLOBE NEWSWIRE) -- Martin Marietta Materials, Inc. MLM, today announced that the Board of Directors has declared a regular quarterly cash dividend of $0.44 per share on the Corporation's outstanding common stock. This dividend, which represents a cash dividend of $1.76 per share on an annualized basis, is payable on March 29, 2018, to shareholders of record at the close of business on March 5, 2018.

Martin Marietta, a member of the S&P 500 Index, is an American-based company and a leading supplier of building materials, including aggregates, cement, ready mixed concrete and asphalt.  Through a network of operations spanning 26 states, Canada and The Bahamas, dedicated Martin Marietta teams supply the resources for building the solid foundations on which our communities thrive. 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.

Investor Contact:  

Suzanne Osberg

Vice President, Investor Relations

(919) 783-4691

Suzanne.Osberg@martinmarietta.com

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