About us

Martin Marietta Materials supplies the products to build the world around you. We are a leading producer of construction aggregates used primarily for construction of highways and other infrastructure projects, in certain green initiatives, including flue gas desulphurization, and in the domestic commercial and residential construction industries. Our Aggregates Business’ network of more than 285 quarries, distribution yards and plants spans coast to coast through 26 states, Canada, the Bahamas and the Caribbean Islands. Through our Specialty Products business, we also produce magnesia-based chemicals used in industrial, agricultural and environmental applications; dolomitic lime sold primarily to customers in the steel industry; and structural composite products....