Cobalt - USGS

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artisanally mined cobalt in Congo (Kinshasa), most cobalt is mined as a byproduct of copper or nickel. China was the world’s leading producer of refined cobalt, most of which was produced from partially refined cobalt imported from Congo (Kinshasa). China was the world’s leading consumer of cobalt, with more than 80% of its consumption being

  Copper, Cobalt