Martin Marietta Materials Inc was formed in 1993 as a North Carolina corporation to serve as successor to the operations of the materials group of the organization that is now Lockheed Martin Corporation. The Company is a producer of aggregates for the construction industry, including infrastructure, commercial, agricultural and residential. The Company also has a Specialty Products segment that manufactures and markets magnesia-based chemical products used in industrial, agricultural, and environmental applications and dolomitic lime sold mainly to customers in the steel industry. The Company operates in four reportable business segments: the Mideast Group, Southeast Group, and West Group, collectively the Aggregates business and the Specialty Products segment. The Aggregates business mines, processes and sells granite, limestone, sand, gravel, and other aggregate products for use in all sectors of the public infrastructure, commercial and residential construction industries as well as agriculture, railroad ballast, chemical, and other uses. The Aggregates business also includes the operation of other construction materials businesses. These businesses are mainly located in the West Group. The Company manufactures and markets, through its Specialty Products business, magnesia-based chemical products for industrial, agricultural, and environmental applications, and dolomitic lime for use mainly in the steel industry. These chemical products have varying uses, including flame retardants, wastewater treatment, pulp and paper production, and other environmental applications. The principal raw materials used in the Specialty Products business are dolomitic limestone and alkali-rich brine. The Company's products are sold principally to commercial customers in private industry. Competition is based mainly on quarry or distribution location and price, but quality of aggregates and level of customer service are also factors. The Company's Specialty Products business competes with various companies in different geographic and product areas principally on the basis of quality, price, technological advances, and technical support for its products. As of February 14, 2014, the Company owns, has the right to use, or has pending applications for approximately 37 patents pending or granted by the United States and various countries and approximately 77 trademarks related to business. The Company's operations are subject to and affected by federal, state, and local laws and regulations relating to the environment, health and safety, and other regulatory matters.