Manganese and manganese alloys are indispensable important raw materials for iron and steel industry, aluminum alloy industry, magnetic material industry, chemical industry and so on. Manganese is an indispensable additive in smelting industry. With the continuous development of science and technology and the continuous improvement of productivity level, electrolytic manganese metal has been successfully and widely used in iron and steel smelting, non-ferrous metallurgy, electronic technology, chemical industry, environmental protection, food hygiene, welding rod industry, aerospace industry and other fields.