5N high purity electrolytic cobalt refers to cobalt with its chemical purity reaching 99.999% (5N) and the gas elements like C, N, O, H and S meeting the requirements of semiconductor, based on analysis of at least 40 impurity elements. Currently, GRIKIN Advanced Material Co., Ltd. has finished constructing production line of high purity cobalt capable of producing 5 ton/year, breaking foreign monopoly of high purity cobalt material used in the electronic information industry.