Knife River

Knife River Corporation, together with its subsidiaries, provides aggregates-based construction materials and contracting services in the United States. The company operates through West, Mountain, Central, and Energy Services segments. It mines, processes, and sells construction aggregates, including crushed stone and sand, and gravel; and produces and sells asphalt and ready-mix concrete. The company also provides contracting services, such as heavy-civil construction, asphalt and concrete paving, and site development and grading.