Sandfire Resources NL is a mining and exploration company. The Company's principal activities are production and sale of copper, gold and silver from its DeGrussa Mine in Western Australia, and exploration and evaluation of mineral tenements and projects in Australia and overseas. It has two segments: The DeGrussa Copper Mine and Exploration and evaluation. The DeGrussa Copper Mine is a copper-gold mine located in the Bryah Basin mineral province of Western Australia, approximately 900 kilometers north-east of Perth and 150 kilometers north of Meekatharra. The DeGrussa Copper Mine generates revenue from the sale of copper-gold products to customers in Asia. The Exploration and evaluation segment includes exploration and evaluation of the mineral tenements in Australia and overseas, including exploring for repeats of DeGrussa Volcanogenic Massive Sulfide (VMS) mineralized system at the Doolgunna Project and its investment in Tintina Resources Inc and WCB Resources Ltd.