Golden Star Resources Ltd (TSX: GSC, NYSE MKT: GSS, GSE: GSR), is a mid-tier Canadian gold mining company, with two producing gold mines in Ghana, West Africa. It has total historical production of over four million ounces of gold. It is a non-refractory producer with production that is expected to increase and operating costs that are expected to decrease due to the Company's two high grade underground development projects coming on-stream by mid-2017.