Holcim US

Ash Grove Cement Company, a CRH Company, has been a pioneer in the cement industry for over 142 years, providing essential cementitious materials for highways, bridges, and various structures that enhance the nation's economic vitality and quality of life. With a network of twelve cement plants and terminals across North America, the company is recognized as one of the largest cement producers on the continent. Generated from the website

Ash Grove Cement, headquartered in Overland Park, Kan., operates cement and lime plants in nine states throughout the United States. A pioneer of the limestone and cement industries, the company was incorporated in Missouri in 1882 as the Ash Grove White Lime Association. The company operates one lime plant with total production capacity of 118,000 tons per year, a quarry operation in British Columbia and a variety of subsidiary businesses. Its lime products are used in many ways, including steel and paper manufacturing, municipal water treatment, agriculture and construction. Ash Grove Cement is located in cities such as Louisville, Neb.

Martin Marietta Aggregates is a division of Martin Marietta Materials, 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. The company s aggregates business network of more than 285 quarries, distribution yards and plants spans coast to coast through 28 states, Canada, the Bahamas and the Caribbean Islands. Through its specialty products business, it also produces magnesia-based chemicals used in industrial, agricultural and environmental applications; dolomitic lime sold primarily to customers in the steel industry; and structural composite products. Martin Marietta Aggregates is located in Weeping Water, Neb.