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TMC extracts first cobalt from sea, but researchers say it is no longer needed

Alternative battery discoveries send deep sea interests for a spin

Munira Rajkotwalla
TMC's argument for deep-sea mining faces criticism as alternate batteries emerge. Photo: TMC

TMC's argument for deep-sea mining faces criticism as alternate batteries emerge. Photo: TMC

The Metals Company (TMC) and SGS Canada have successfully produced the world's first cobalt sulphate derived from deep-sea polymetallic nodules – but critics say the discovery is no longer relevant as...

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