Delivering Record Performance Through Operational Excellence

1 AGGREGATES CONSUMPTION HAS ONLY MODESTLY REBOUNDED FROM THE GREAT RECESSION Martin Marietta U.S. CONSTRUCTION AGGREGATES CONSUMPTION¹ Martin Marietta heritage aggregates volumes MODESTLY ABOVE TROUGH LEVELS 3.4B TONS 2006 PEAK 2.2B TONS 2010 TROUGH 2.6B TONS 2018 Source: U.S. Geological Survey (Crushed Stone and Sand & Gravel) Investor Presentation Aggregates volumes (tons) 205M 125M 2 2005/2006 PEAK 2010 TROUGH Heritage 171M 40M Tons added via acquisitions since 2008 5% HERITAGE GROWTH 131M from trough levels Acquisitions 2 Peak tons for twelve-month period ended March 31, 2006 2018 26

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