Exhibit 23.15
APYS Subsea Ltd
1 The Macies
Bath, United Kingdom
BA1 4HS
CONSENT OF THIRD-PARTY QUALIFIED PERSON
APYS Subsea Ltd (“APYS”), in connection with the Automatic Shelf Registration Statement on Form S-3 to be filed on or about the date hereof (including any amendments or supplements thereto, the “Registration Statement”), of TMC the metals company Inc. (the “Company”), consents to:
| · | the incorporation by reference of the technical report summary titled “Initial Assessment of TOML and NORI Properties, Clarion-Clipperton Zone” with an effective date of August 4, 2025 (the “Technical Report Summary”), prepared in accordance with Subpart 1300 of Regulation S-K promulgated by the U.S. Securities and Exchange Commission (“S-K 1300”), into the Registration Statement; |
| · | the use of, and references to, our name, including our status as an expert or “qualified person” (as defined in S-K 1300), in the Technical Report Summary and the Registration Statement; and |
| · | the use of the information derived, summarized, quoted or referenced from the Technical Report Summary, or portions thereof, that was prepared by us, that we supervised the preparation of and/or that was reviewed and approved by us, that is incorporated by reference into the Registration Statement. |
APYS is responsible for authoring, and this consent pertains to, Sections 7.6.6 and 7.7.6 of the Technical Report Summary.
Dated this March 31, 2026
| /s/ John Buckell | |
| John Buckell | |
| Consultant | |
| Signature of Authorized Person for | |
| APYS Subsea Ltd, a Qualified Third-Party Firm |