CMOC Group Limited, together with its subsidiaries, engages in the mining, beneficiation, smelting, and refining of base and rare metals. It operates in five segments: Molybdenum, Tungsten and Related Products; Niobium, Phosphorus and Related Products; Copper, Cobalt and Related Products; Metal Trading; and Others. The company offers copper, cobalt, molybdenum, tungsten, and niobium; and phosphate fertilizer. It also engage