GlobeNewswire Inc | May 13, 2021 04:10PM EDT

May 13, 2021

RALEIGH, N.C., May 13, 2021 (GLOBE NEWSWIRE) -- Martin Marietta Materials, Inc. (NYSE: MLM) (Martin Marietta or the Company) today announced that its Board of Directors has declared a regular quarterly cash dividend of $0.57 per share on the Companys outstanding common stock. This dividend, which represents a cash dividend of $2.28 per share on an annualized basis, is payable June 30, 2021, to shareholders of record at the close of business on June 1, 2021.

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 Mariettas Magnesia Specialties business produces high-purity magnesia and dolomitic lime products used worldwide in environmental, industrial, agricultural and specialty applications. For more information, visit www.martinmarietta.com or www.magnesiaspecialties.com.

Investor Contact: Suzanne OsbergVice President, Investor Relations (919) 783-4691Suzanne.Osberg@martinmarietta.com

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