Nanjing Hanrui Cobalt Co.,Ltd. engages in the extraction of cobalt and copper ores. The company offers raw material products, including electrolytic cobalt, electrolytic copper, and cobalt hydroxide; cobalt salt products, such as cobalt oxalate, carbonate, chloride, sulfate, and trioxide; cobalt powder products comprising granulated, FCOH series, and EFS series cobalt powder. It also engages in sales, transportation, and trade of various non-ferrous metal raw materials, semi-finished products, and finished products, including cobalt, copper, nickel, lead, and zinc. In addition, the company is involved in equity investment, investment consulting, venture capital, and asset management. It operates in Japan, South Korea, Switzerland, India, and the United States. The company was founded in 1997 and is headquartered in Nanjing, China.