Delivering Record Performance Through Operational Excellence

MARTIN MARIETTA'S JOURNEY BUILDING A SOLID BASE FOCUSING ON FUNDAMENTALS EXPANDING THE PLATFORM A Martin Marietta Martin Marietta BUILDING A WORLD-CLASS ORGANIZATION 1994 TO 2006 Becoming a leading aggregates producer in the United States 2007 TO 2010 Navigating the business during the Great Recession $750M market capitalization (1994) 1994 Listed on New York Stock Exchange 1995 to 2003 - Actively participated in industry consolidation (56% of 2003 sales derived from acquisitions) 1998 Achieved $1B in revenues 2003 to 2006- Focused on internal capital investment projects to provide capacity expansion in growing markets 2005/2006 - Shipped peak aggregates volumes of 205M tons (twelve months ended March 31, 2006) Other highlights: • Expanded waterborne capabilities and rail- based distribution networks $4.2B market capitalization (2010) 2007 - Achieved prior peak Adjusted EBITDA of $587M 2009 - Experienced 40 percent decline in aggregates tons since 2005 peak volumes 2010 Launched long-term strategic plan (SOAR) Other highlights: • • Throughout the Great Recession, Martin Marietta remained profitable and was the only company in its industry to not cut or suspend dividends #1 or #2 in 65% of markets 2011 TO 2017 Transforming the business through aggregates-led expansion $14B market capitalization (2017) 2011 - Completed the River for the Rockies asset exchange, the largest asset swap in the U.S. building materials industry - 2014 Became the largest supplier of construction aggregates, cement and ready mixed concrete in Texas through the $2.757B acquisition of TXI 2014 Entered S&P 500 - 2016 - #9 performer in the S&P 500 2017 - Achieved Adjusted EBITDA of over $1B Other highlights: • Completed 26 acquisitions 2018 AND BEYOND Positioning Martin Marietta as an industry leader committed to the long-term success of employees, communities and other stakeholders 2018 Completed $1.62B acquisition of Bluegrass Materials Company 2019 expected to be another record year Other highlights: #1 or #2 in 90% of markets . Completed 60 acquisitions Investor Presentation • Completed 8 acquisitions 6

View entire presentation