TMC the metals Co Inc

10b5-1 Trading Arrangements

During the three months ended June 30, 2024, none of ourdirectors or officers (as defined in Section 16 of the Securities Exchange Act of 1934, as amended)adopted, modified orterminated any contract, 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 August 13, 2024, we entered into the First Amendment to the 2024 Credit Facility with the 2024 Lenders, Gerard Barron and ERAS Capital LLC, to increase the borrowing limit of the 2024 Credit Facility to $25 million in the aggregate ($12.5 million from each of the 2024 Lenders). Under the terms of the First Amendment, the borrowing limit will return to $20 million in the aggregate ($10 million from each of the 2024 Lenders) upon certain financing events. The foregoing description of the First 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 First Amendment attached as Exhibit 10.5 to this Quarterly Report on Form 10-Q and incorporated herein by reference.