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DeepGreen makes run at seafloor mining

Canadian Mining Journal Staff | October 17, 2019 | 2:46 pm Battery Metals Canada 

DeepGreen Metals intends to be the world’s first zero tailings miner by retrieving polymetallic base metal nodules from the seafloor. In lab tests the nuggets have been treated with calcination and smelting techniques that produced iron-rich alloy nuggets with payable amounts...

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