SEC Form S-8 filed by TMC the metals company Inc.

Registration No. 333 –

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-8

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

TMC the metals company Inc.

(Exact name of registrant as specified in its charter)

1111 West Hastings Street, 15th Floor

Vancouver, British Columbia

V6E 2J3

(888) 458-3420

(Address, Including Zip Code, of Principal Executive Offices)

2021 Incentive Equity Plan, as amended

(Full Title of the Plans)

Cogency Global Inc.

122 East 42^nd Street, 18^th Floor

New York, New York 10168

Telephone: (800) 221-0102

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

Michael L. Fantozzi, Esq.

Daniel T. Kajunski, Esq.

Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.

One Financial Center

Boston, MA 02111

Telephone: (617) 542-6000

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ¨

EXPLANATORY NOTE

This Registration Statement registers additional securities of the same class as other securities for which the registration statements filed on Form S-8 (SEC File Nos. 333-261221, 333-265319, 333-270875, 333-278222 and 333-286191) of TMC the metals company Inc. (the “Registrant”) are effective. The additional securities are 40,000,000 Common Shares of the Registrant reserved for issuance under the 2021 Incentive Equity Plan, as amended, as a result of an amendment to the plan as approved by the shareholders on August 28, 2025. The information contained in the Registrant’s registration statements on Form S-8 (SEC File Nos. 333-261221, 333-265319, 333-270875, 333-278222 and 333-286191) is hereby incorporated by reference pursuant to General Instruction E of Form S-8.

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

+ Denotes management contract or compensatory plan or arrangement.

Signatures

Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant has duly caused this registration statement on Form S-8 to be signed on its behalf by the undersigned, thereunto duly authorized in New York, New York on September 2, 2025.

POWER OF ATTORNEY

Each person whose signature appears below constitutes and appoints each of Gerard Barron and Craig Shesky, acting alone or together with another attorney-in-fact, as his or her true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for such person and in his or her name, place and stead, in any and all capacities, to sign any or all further amendments (including post-effective amendments) to this registration statement (and any additional registration statement related hereto permitted by Rule 462(b) promulgated under the Securities Act (and all further amendments, including post-effective amendments, thereto)), and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act, this registration statement has been signed by the following persons in the capacities and on the dated indicated.