Knife River

Knife River Corporation is one of the leading the United States-owned and operated companies that produces aggregate in the U.S. It serves the U.S. military, interstate highways, and sports and business facilities. The company provides integrated construction and specialty services to support aggregate-based product lines that include crushed stone, sand and gravel, asphalt, ready-mix concrete, building materials and liquid asphalt production items. Knife River Corporation is a part of MDU Resources Group, which provides value-added natural resource products and services for energy and transportation infrastructure. Founded in 1924, it deals in the areas of business includes energy, construction material and utility resources. Knife River Corporation maintains its corporate headquarters in Bismarck, N.D.