Martin Marietta Materials
May 6, 2016

Martin Marietta to Webcast 2016 Analyst and Investor Day

RALEIGH, N.C.--(BUSINESS WIRE)-- Martin Marietta Materials, Inc. (NYSE:MLM) today announced that it will broadcast the 2016 Analyst and Investor Day presentation live on Monday, May 9, 2016.

To join the live webcast, please visit MLMinvestorday.com to register. The presentation will begin at 8:45 a.m. EST on May 9, 2016, and is expected to end at 11:30 a.m. EST. An online replay will be available approximately two hours following the conclusion of the live broadcast and will continue for one year. A link to these events will also be available on the Company's website: www.martinmarietta.com.

The management team will respond to questions during the Q&A portion of the event. Analysts and investors watching the live broadcast are invited to submit questions in writing to investordayquestions@martinmarietta.com.

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.

MLM-G

Martin Marietta Materials, Inc.
Elisabeth Eisleben, 919-510-4776
Director, Investor Relations
www.martinmarietta.com

Source: Martin Marietta Materials, Inc.

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