Nevsun Resources Ltd is involved in acquisition, exploration, development and operation of mineral property interests. The company primarily engages in copper and zinc production at Bisha, a large, high-grade volcanogenic massive sulphide deposit located 150km west of Asmara, Eritrea, East Africa. The company generates revenue through the sale of copper and zinc concentrates which contain gold and silver by-products. Bisha is mined using conventional drill and blast open pit mining techniques to remove waste and deliver ore to the run of mine stock pile. Nevsun Resources also operates a high-grade copper and gold Timok project, a high-grade deposit located in the Bor mining district, in Serbia.