Martin Marietta Materials supplies the products to build the world around you. We are the nation’s second largest 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 27 states, Canada, the Bahamas and the Caribbean Islands.