Rusoro Mining Ltd. is engaged in the operation, acquisition, exploration and development of gold mining and mineral properties in Venezuela. The Company�s segments included Choco Mine and Isidora Mine, the aggregate of mineral properties, which consists of exploration and evaluation assets, as well as development stage properties, and Corporate. As of December 31, 2011, the Company holds interests in two producing gold mines in Venezuela. It holds a 95% ownership interest in the Choco 10 mine (the Choco Mine) and 50% ownership interest in the Isidora mine (the Isidora Mine), which it operates as part of a joint venture (the Joint Venture) with the Venezuelan government. The Company also holds interests in various exploration and development projects in Venezuela. During the year ended December 31, 2011, the Isidora Mine produced 11,245 ounces.