TMC the metals Co Inc

10b5-1 Trading Arrangements

During the three months ended September 30, 2024, none of ourdirectors or officers (as defined in Section 16 of the Securities Exchange Act of 1934, as amended)adopted, modified orterminated anycontract, instruction or written plan for the purchase or sale of our securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any “non-Rule 10b5-1 trading arrangement,” as defined in Item 408(a) of Regulation S-K.

Amendments to Credit Facilities

On November 14, 2024, we entered into the Second Amendment to the 2024 Credit Facility with the 2024 Lenders, Gerard Barron and ERAS Capital LLC (the “Second Amendment”), to increase the borrowing limit thereunder to $38 million in the aggregate ($19 million from each of the 2024 Lenders) and to extend the maturity date to December 31, 2025. Under the terms of the Second Amendment, the parties agreed to an increase in the underutilization fee to 6.5% and to allow repayment of the Loan to be made in equity at the Company’s election. The foregoing description of the Second Amendment does not purport to be a complete description of the rights and obligations of the parties thereunder and is qualified in its entirety by reference to the full text of the Second Amendment which we expect to attach as an Exhibit to our next Annual Report on Form 10-K and incorporated therein by reference.