Golden Star Resources Ltd. is a gold mining and exploration company. The Company's segments include Wassa, Bogoso/Prestea, Other and Corporate. The Company, through its subsidiary, Golden Star (Wassa) Limited, owns and operates the Wassa open-pit gold mine, the Wassa underground mine and a carbon-in-leach (CIL) processing plant (Wassa). The Wassa mine is located in the southwestern region of Ghana approximately 35 kilometers northeast of the town of Tarkwa. The Company, through its subsidiary Golden Star (Bogoso/Prestea) Limited, owns and operates the Bogoso gold mining and processing operations (Bogoso), the Prestea open-pit mining operations and the Prestea underground development project. The Prestea Underground is located 16 kilometers south of the existing Bogoso processing plant. The Company holds interests in various gold exploration projects in Ghana and other parts of West Africa, and in South America the Company holds and manages exploration properties in Brazil.