KNIFE RIVER MATERIALS

Non-metal construction materials, namely, asphalt, concrete, ready mix concrete, cement mixes, rocks and gravel, lignite and bituminous coal tars, and aggregate material comprised of the forgoing for construction of roads, streets, infrastructure, commercial and residential buildings and subdivisions; Concrete building materials, namely, blocks and pavers

Mining extraction; Construction planning; Construction management; Construction supervision; Road construction; Street construction; Building construction for civil infrastructure projects; Residential and commercial building construction; Land reclamation; Mining extraction of rock, sand, gravel and hard rock; Quarry services

Mining exploration and mineral exploration services