TMC produces first nickel sulphate from deep seafloor polymetallic nodules

Exploration company TMC has successfully produced nickel sulphate exclusively from seafloor polymetallic nodules. This, the Nasdaq company says, has never been accomplished before. Conducted in collaboration with SGS Canada at its Lakefield, Ontario facility, the process involved bench-scale testing of TMC’s hydrometallurgical flowsheet design. Samples of nickel/cobalt/copper matte, produced by TMC in 2021, were used for testing.