(1) Manganese and manganese alloy is one of the indispensable raw materials in the iron and steel industry, aluminium alloy industry, magnetic material industry and chemical industry. (2) Manganese Metal is an indispensable additive in smelting industry. Electrolytic metal manganese processing into powder is the main raw material for the production of manganese tetroxide. (3) Electrolytic manganese metal due to its high purity, low impurity characteristics, has been successfully and widely used in iron and steel smelting, non-ferrous metallurgy, electronic technology, chemical industry, environmental protection, food hygiene, electrode industry, aerospace industry and other fields. (4) The purity of electrolytic manganese is very high, its role is to increase the hardness of metal materials, the most widely used in manganese copper alloy, manganese aluminium alloy, 200 series stainless steel. Manganese in these alloys can improve the strength, toughness, wear resistance and corrosion resistance of the alloy.