Nevsun Resources Ltd. is a Canadian mineral resource company. The Company, through its subsidiaries is engaged in the acquisition, exploration, development, and production of mineral properties. Its primary operating asset is the Bisha Mine located on the Bisha Property with gold, silver and base metal (copper and zinc) mineral resources and mineral reserves. In addition, the Company owns the Mogoraib exploration license containing 97.4 square kilometers of area located 16 kilometers southwest of the Bisha Mine, and a mining licence for the Harena deposit, located approximately 9 kilometers south of the Bisha Mine. The Bisha Mine is owned by BMSC, the voting securities of which are held 60% by the Company and 40% by ENAMCO. During the year ended December 31, 2012, diamond drilling programs were undertaken across Bisha Main, Bisha Hangingwall (HW) Copper, Harena and the Northwest (NW) Zone, for a total of approximately 115 holes and 19,432 meters.