GlobeNewswire Inc | Jul 15, 2021 04:05PM EDT

July 15, 2021

RALEIGH, N.C., July 15, 2021 (GLOBE NEWSWIRE) -- Martin Marietta Materials, Inc. (NYSE:MLM) (Martin Marietta or the Company) will host its second-quarter 2021 earnings conference call on Thursday, July 29, 2021 at 11:00 a.m. Eastern Time. The Company will release results for the quarter ended June 30, 2021, that morning before the market opens.

A live, listen-only webcast and supplemental information will be accessible on the Investors section of the Companys website at www.martinmarietta.com. For those investors without online web access, the conference call may be accessed by calling 970-315-0423, confirmation number 6678376. Please dial in at least 15 minutes in advance to ensure a timely connection to the call. An on-demand replay will be available on the Companys website approximately two hours following the conclusion of the live broadcast and will continue for one year.

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 necessary for building the solid foundations on which our communities thrive. Martin Mariettas 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 OsbergVice President, Investor Relations (919) 783-4691Suzanne.Osberg@martinmarietta.com

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