Copper cathode is refined from sulfide copper concentrate or oxide copper ore through pyrometallurgical or hydrometallurgical processes. It typically achieves a purity of over 99.99% and is widely used in industries such as power, air conditioning, transportation, electronics, and construction due to its excellent electrical conductivity, thermal conductivity, ductility, tensile strength, and corrosion resistance. It serves as a crucial foundation for national economic and social development.