Martin Marietta Aggregates is a leading producer of construction aggregates in the United
States, supplying the crushed stone, sand and gravel used to build the roads, sidewalks and foundations on
which we live. We are also a provider of asphalt and concrete in select geographic areas. more...
Martin Marietta Magnesia Specialties is among the largest U.S. producers of magnesia chemicals
and lime. Magnesia Specialties leads the industry in research and development of highly specialized
magnesia-based products. The Woodville, Ohio facility is the largest single site dolomitic lime plant in
North America. more...
Martin Marietta Aggregates is uniquely qualified to provide the utilities industry with the high-calcium limestone required for flue gas desulfurization.
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Martin Marietta Composites manufactures structural composites products used for transportation,
construction and infrastructure. When high strength, low weight and durability are important, composites
deliver the solution. more...