Boliden is an international mining and metal company that mines and smelts copper, zinc, lead, gold and silver. Other significant areas of Boliden's activities are exploration, technology sales, and the manufacture of copper and brass products. The company has approximately 3,800 employees.Boliden owns and runs mines in Sweden and Canada and two smelters in Sweden.Exploration is presently being carried out in Sweden and Canada with the principal focus being in Sweden.