Dianne copper-gold mine produces high-grade ore, which contains a variety of metal elements. The proven reserves of each metal element include Au: 88.914 tons, Cu: 673,785 tons, Ag: 68.059 tons, and Zn, Sn, and CaF2: 118,889 tons; Dianne mine is located at a moderate distance from the harbour and has very convenient water and land transportation.