Non-ferrous metals, regions and conceptual plates. Non-ferrous metals are one of the main businesses of Han Rui Cobalt Industry, and regional plates and concept plates are divided according to regions and concepts. For example, the geographical plate involved in Han Rui Cobalt Industry is mainly Jiangsu, and the concept plate includes small metal, Shenzhen Stock Exchange, margin financing and securities lending, MSCI China, cobalt and nickel, and battery recycling.