Martin Marietta Materials, Inc.
| New York Stock Exchange: MLM
Martin Marietta Materials, Inc. engages in production of aggregates for the construction industry, including infrastructure, nonresidential, residential, railroad ballast, agricultural, and chemical grade stone used in environmental applications. It operates through following segments: Mideast Group, Southeast Group and West Group collectively the Aggregates business, and Specialty Products. The Aggregates segment mines, processes and sells granite, limestone, sand, gravel, and other aggregate products which include asphalt products, ready mixed concrete, and road paving materials. The Specialty Products segment includes magnesia-based chemical products for industrial, agricultural, and environmental applications, and dolomitic lime for use primarily in the steel industry. The company's business roots back to 1939. Martin Marietta Materials was founded in November 1993 and is headquartered in Raleigh, NC.