Exhibit 15.12

CONSENT OF APEX GEOSCIENCE LTD. WITH RESPECT TO THE TACTICAL RESOURCES INC. TECHNICAL REPORT

CONSENT OF EXPERT

To:

United States Securities and Exchange Commission

Dear Sirs/Mesdames:

Re:

Form 20-F Report (the “Report”) being filed by Tactical Resources Corp. (f.k.a. Plum III Merger Corp.).

I, D. Roy Eccles, M.Sc., P. Geol. of APEX Geoscience Ltd. confirm I have examined copies of the Report. This letter is being filed as my consent to (i) being named in the Report; (ii) the inclusion in the the Report of information, data, and statements from the report entitled “Technical Report, Geological Introduction to Tactical Resources Corp.’s Peak Rare Earth Element Project, Texas, United States” with an effective date of September 15, 2022 (the “Technical Report Summary”), and (iii) the filing of this consent letter as an exhibit to the Report and any amendments thereto.

In giving this consent, I do not admit thereby that I come within the category of persons whose consent is required under Section 7 of the U.S. Securities Act of 1933, as amended, or the rules and regulations of the SEC thereunder.

Dated this 12^th day of August 2026.

Best regards,

/s/ Roy Eccles

Roy Eccles MSc. P. Geol. P. Geo.

VP (Corporate Compliance) and Senior Consultant

APEX Geoscience Ltd.

100, 11450 – 160 Street

Edmonton, Alberta, T5M 3Y7 Canada

Phone: (780) 467-3532

Email: reccles@apexgeoscience.com