Tongling Nonferrous Metals Group (TNMG, 铜陵有色金属集团股份有限公司) is a mining and metals company. It is mainly engaged in the copper exploration, mining and dressing, smelting and deep processing. The company offers gold, silver, monosulfide ores, sulfur sands, and sulfuric acids, as well as minerals, such as gold sand, iron sand, iron pellets, iron powder, converter slag iron powder, etc.