0001798562 2023-01-01 2023-12-31 0001798562 TMC:CommonSharesWithoutParValueMember 2023-01-01 2023-12-31 0001798562 TMC:RedeemableWarrantsEachWholeWarrantExercisableForOneCommonShareEachAtExercisePriceOf11.50PerShareMember 2023-01-01 2023-12-31 0001798562 2023-06-30 0001798562 2024-03-22 iso4217:USD shares iso4217:USD shares false --12-31 2023 FY 0001798562 A1 00-0000000 false 10-K/A true 2023-12-31 false 001-39281 TMC THE METALS COMPANY INC. 595 Howe Street, 10th Floor Vancouver BC V6C 2T5 574 252-9333 Common Shares, without par value TMC NASDAQ Redeemable warrants, each whole warrant exercisable for one Common Share, each at an exercise price of $11.50 per share TMCWW NASDAQ No No Yes Yes Non-accelerated Filer true true false false false 274979313 318249878 Ernst & Young LLP 1263 Vancouver, Canada