Exhibit 23.17
Lanasera Pty Ltd
9 Pennant Court
Birkdale QLD 4159
Australia
CONSENT OF THIRD-PARTY QUALIFIED PERSON
Lanasera Pty Ltd (“Lanasera”), 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. |
Lanasera is responsible for authoring, and this consent pertains to, Sections 1.10, 19 and 22.12 of the Technical Report Summary.
Dated this March 31, 2026
| /s/ Brett Roughan | |
| Brett Roughan | |
| Principal | |
| Signature of Authorized Person for | |
| Lanasera Pty Ltd, a Qualified Third-Party Firm |