Copperstone Resources AB operates as a mining development company in Sweden. The company primarily explores for copper, zinc, gold, lead, silver, manganese, tungsten, cobalt, vanadium, molybdenum, nickel, and iron ores. It holds interest in the Viscaria project; the Arvidsjaur project that covers an area of approximately 8,000 hectares located in the Skellefte Mining District; and the Tvistbo project. The company was formerly known as Kopparberg Mineral AB (publ) and changed its name to Copperstone Resources AB in February 2015. Copperstone Resources AB was incorporated in 2006 and is headquartered in Kiruna, Sweden.