Hanrui Cobalt was established in 1997, headquartered in Nanjing, Jiangsu, China. Hanrui Cobalt is a comprehensive enterprise that specializes in exploitation and refining of cobalt ore,production and sales of cobalt powder and cobalt chemicals. Currently, Hanrui Cobalt holds Nanjing Hanrui Cobalt, Metal Mines sprl and GT Chemicals by full or part holding. Nanjing Hanrui Cobalt Co., Ltd. produces cobalt powder and other cobalt chemicals as its principal products. Among them, annual production capacity of cobalt powder has reached 1200 metallic tons. Our products have been widely recognized by home and abroad customers because of high and stable quality. Hanrui Cobalt has become one of principal producers and marketers of cobalt powder all over the world. cobalt powder (Co:99.8%) cobalt tetroxide (Co:73%) cobalt sulfate (Co:21%) cobalt chloride (Co:24%) cobalt oxalate(Co:31%) cobalt acetate(Co:23.3%) cobalt carbonate(Co:46.5%) ....