Cobalt Blue Holdings Limited, together with its subsidiaries, engages in the exploration and evaluation of mining properties in Australia. It operates through Broken Hill Cobalt Project and Kwinana Cobalt Refinery Project segments. The company explores for cobalt. It holds 100% interest in the Broken Hill cobalt project comprising five exploration licenses and two mining leases covering an area of approximately 220 square kilometers located in the Broken Hill, New South Wales. The company also operates the Kwinana refinery, a cobalt/nickel refinery located in Western Australia that produces battery ready sulphates as feedstock for electric vehicle batteries. In addition, it engages in the ReMine+ project for recycling mine waste. Cobalt Blue Holdings Limited was incorporated in 2016 and is based in North Sydney, Australia.