Investor Presentation - January 2019

MULTI-YEAR INDUSTRIAL PROJECTS BEGIN IN 2019 POPULATION AND ENERGY DYNAMICS DRAW MEGA PROJECTS TO TEXAS AND GULF COAST CHE Investor Presentation - January 2019 Martin Marietta Well-positioned to supply large-scale energy projects "One-stop" source for aggregates, cement and ready mixed concrete • Multi-modal delivery capabilities AGGREGATES 27.5M TONS CEMENT 1M+ TONS READY MIXED CONCRETE 2.9M CUBIC YARDS ESTIMATED HEAVY BUILDING MATERIAL PRODUCT NEEDS FOR PROPOSED ENERGY PROJECTS 31

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