Martin Marietta Materials Inc

Martin Marietta Materials Inc a natural resourcebased building materials company supplies aggregates and heavyside building materials to the construction industry in the United States and internationally It offers crushed stone sand and gravel products ready mixed concrete and asphalt paving products and services and Portland and specialty cement for use in the infrastructure projects and nonresidential and residential construction markets as well as in the railroad agricultural utility and environmental industries The company also produces magnesiabased chemicals products that are used in industrial agricultural and environmental applications and dolomitic lime primarily to customers for steel production and soil stabilization Its chemical products are used in flame retardants wastewater treatment pulp and paper production and other environmental applications The company was founded in 1939 and is headquartered in Raleigh North Carolina