Polaris Materials Corporation develops and operates construction aggregate properties and projects in western North America. The company holds an 88% ownership interest in the Orca Quarry, a sand and gravel project located to the north east coast of Vancouver Island west of Port McNeill, British Columbia; a 70% ownership in the Richmond and Long Beach terminals in California; and a 70% interest in the Eagle Rock Quarry project, a granite resource situated on deep tidewater south of Port Alberni on Vancouver Island, British Columbia, as well as holds interest in the Black Bear Project located to the south-west of Port McNeill on Vancouver Island, British Columbia. Its products are primarily used for the production of concrete for building and construction purposes. The company has a strategic alliance with Cemex, Inc. for the development of port terminals; and for the purchase and distribution of marine supplied construction aggregates, sand, gravel, and crushed rock on the west cost of the United States. The company was formerly known as Polaris Minerals Corporation and changed its name to Polaris Materials Corporation in January 2015. Polaris Materials Corporation was incorporated in 1999 and is headquartered in Vancouver, Canada. Polaris Materials Corporation operates as a subsidiary of U.S. Concrete, Inc.