PMET Resources Files NI 43-101 Technical Report on the CV5 Lithium-Only Feasibility Study on its Shaakichiuwaanaan Project

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PMET Resources (OTCQX: PMETF) filed an NI 43-101 technical report titled "CV5 Pegmatite Lithium-Only Feasibility Study NI 43-101 Technical Report – Shaakichiuwaanaan Project" with an Issue Date of November 14, 2025 and Effective Date of October 20, 2025. The report, prepared by G Mining Services with independent contributions from multiple technical firms, follows PMET's October 20, 2025 announcement of a positive lithium-only feasibility study on the CV5 pegmatite.

The Technical Report is filed on SEDAR+ and will be posted on the company's website; readers are urged to review the full report including all qualifications, assumptions, exclusions and risks related to mineral resources, reserves and life-of-mine planning.

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MONTREAL, Nov. 14, 2025 /PRNewswire/ - November 15, 2025 – Sydney, Australia

PMET Resources Inc. (the "Company" or "PMET") (TSX: PMET) (ASX: PMT) (OTCQX: PMETF) (FSE: R9GA) is pleased to announce it has filed on SEDAR+ a technical report (the "Technical Report"), prepared in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101"). The Technical Report is titled "CV5 Pegmatite Lithium-Only Feasibility Study NI 43-101 Technical Report – Shaakichiuwaanaan Project", with an Issue Date of November 14, 2025, and Effective Date of October 20, 2025. The filing follows the October 20, 2025, news release by the Company announcing a positive lithium-only Feasibility Study ("FS") on the CV5 Pegmatite outlining the potential for a large-scale mining operation at the Shaakichiuwaanaan Project.

The Technical Report has been prepared by G Mining Services Inc., with contributions from Primero Group Americas Inc., AtkinsRéalis Group Inc., BBA Inc., Paterson & Cooke Canada Inc., Vision Geochemistry Ltd., Alius Mine Consulting, WSP Global Inc., Mailloux Hydrogéologie and GCM Expert, each consulting groups independent of the Company, in accordance with NI 43-101.

The report is available on SEDAR+ and will be available shortly thereafter on the Company's website. Readers are encouraged to read the FS Technical Report in its entirety, including all qualifications, assumptions, exclusions and risks that relate to the Mineral Resource, Mineral Reserve, and life of mine plan. The FS Technical Report is intended to be read as a whole, and sections should not be read or relied upon out of context.

About PMET Resources Inc.

PMET Resources Inc. is a pegmatite critical mineral exploration and development company focused on advancing its district-scale 100%-owned Shaakichiuwaanaan Property located in the Eeyou Istchee James Bay region of Quebec, Canada, which is accessible year-round by all-season road and proximal to regional hydro-power infrastructure.

In late 2025, the Company announced a positive lithium-only Feasibility Study on the CV5 Pegmatite (the "Feasibility Study") and declared a maiden Mineral Reserve of 84.3 Mt at 1.26% Li₂O (Probable)¹. The study outlines the potential for a competitive and globally significant high-grade lithium project targeting up to ~800 ktpa spodumene concentrate using a simple Dense Media Separation ("DMS") only process flowsheet. Further, the results highlight Shaakichiuwaanan as a potential North American critical mineral powerhouse with significant opportunity for tantalum and caesium in addition to lithium.

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1 See Feasibility news release dated October 20, 2025. Probable Mineral Reserve cut-off grade is 0.40% Li2O (open-pit) and 0.70% Li2O (underground). Underground development and open-pit marginal tonnage containing material above 0.37% Li2O are also included in the statement. Effective Date of September 11, 2025.

The Project hosts a Consolidated Mineral Resource² totalling 108.0 Mt at 1.40% Li₂O and 166 ppm Ta₂O₅ (Indicated), and 33.4 Mt at 1.33% Li₂O and 155 ppm Ta₂O₅ (Inferred), and ranks as the largest³ lithium pegmatite resource in the Americas, and in the top ten globally. Additionally, the Project hosts the world's largest pollucite-hosted caesium pegmatite Mineral Resource at the Rigel and Vega zones with 0.69 Mt at 4.40% Cs₂O (Indicated), and 1.70 Mt at 2.40% Cs₂O (Inferred).

For further information, please contact us at info@pmet.ca or by calling +1 (604) 279-8709, or visit www.pmet.ca. Please also refer to the Company's continuous disclosure filings, available under its profile at www.sedarplus.ca and www.asx.com.au, for available exploration data.

This news release has been approved by

"KEN BRINSDEN"                                                         

Kenneth Brinsden, President, CEO, & Managing Director

Qualified Person(s)

The technical and scientific information in this news release that relates to the Mineral Resource  Estimate and exploration results for the Company's properties is based on, and fairly represents, information compiled by Mr. Darren L. Smith, M.Sc., P.Geo., who is a Qualified Person as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101"), and member in good standing with the Ordre des Géologues du Québec (Geologist Permit number 01968), and with the Association of Professional Engineers and Geoscientists of Alberta (member number 87868). Mr. Smith has reviewed and approved the related technical information in this news release.

Mr. Smith is an Executive and Vice President of Exploration for PMET Resources Inc. and holds common shares, Restricted Share Units (RSUs), and Performance Share Units (PSUs) in the Company.

The information in this news release that relates to the Feasibility Study and Mineral Reserve Estimate is based on, and fairly represents, information compiled by Mr. Frédéric Mercier-Langevin, Ing. M.Sc., who is a Qualified Person as defined by NI 43-101, and member in good standing with the Ordre des Ingénieurs du Québec. Mr. Mercier-Langevin has reviewed and approved the related technical information in this news release.

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2 The Consolidated MRE (CV5 + CV13 pegmatites), which includes the Rigel and Vega caesium zones, totals 108.0 Mt at 1.40% Li2O, 0.11% Cs2O, 166 ppm Ta2O5, and 66 ppm Ga, Indicated, and 33.4 Mt at 1.33% Li2O, 0.21% Cs2O, 155 ppm Ta2O5, and 65 ppm Ga, Inferred, and is reported at a cut-off grade of 0.40% Li2O (open-pit), 0.60% Li2O (underground CV5), and 0.70% Li2O (underground CV13). A grade constraint of 0.50% Cs2O was used to model the Rigel and Vega caesium zones. The Effective Date is June 20, 2025 (through drill hole CV24-787). Mineral Resources are not Mineral Reserves as they do not have demonstrated economic viability. Mineral Resources are inclusive of Mineral Reserves.

3 Determination based on Mineral Resource data, sourced through July 11, 2025, from corporate disclosure.

Mr. Mercier-Langevin is the Chief Operating and Development Officer for PMET Resources Inc. and holds common shares and options in the Company.

The information in this news release that relates to the Feasibility Study ("FS") for the Shaakichiuwaanaan Project, which was first reported by the Company in a market announcement titled "PMET Resources Delivers Positive CV5 Lithium-Only Feasibility Study for its Large-Scale Shaakichiuwaanaan Project" dated October 20, 2025 (Montreal time) is available on the Company's website at www.pmet.ca, on SEDAR+ at www.sedarplus.ca and on the ASX website at www.asx.com.au. The production target from the Feasibility Study referred to in this news release was reported by the Company in accordance with ASX Listing Rule 5.16 on the date of the original announcement. The Company confirms that, as of the date of this news release, all material assumptions and technical parameters underpinning the production target and forecast financial information in the original announcement continue to apply and have not materially changed.

The Mineral Resource and Mineral Reserve Estimates in this release were first reported by the Company in accordance with ASX Listing Rule 5.8 in market announcements titled "Worlds Largest Pollucite-Hosted Caesium Pegmatite Deposit" dated July 20, 2025 (Montreal time) and "PMET Resources Delivers Positive CV5 Lithium-Only Feasibility Study for its Large-Scale Shaakichiuwaanaan Project" dated October 20, 2025 (Montreal time) and are available on the Company's website at www.pmet.ca, on SEDAR+ at www.sedarplus.ca and on the ASX website at www.asx.com.au. The Company confirms that, as of the date of this news release, it is not aware of any new information or data verified by the competent person that materially affects the information included in the announcement and that all material assumptions and technical parameters underpinning the estimates in the announcement continue to apply and have not materially changed. The Company confirms that, as at the date of this announcement, the form and context in which the competent person's findings are presented have not been materially modified from the original market announcement.

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SOURCE PMET Resources Inc.

FAQ

What did PMET Resources announce on November 15, 2025 regarding the Shaakichiuwaanaan Project (OTCQX: PMETF)?

PMET filed an NI 43-101 Technical Report for the CV5 lithium-only Feasibility Study with Issue Date November 14, 2025 and Effective Date October 20, 2025.

Where can investors find the PMET (PMETF) CV5 Feasibility Study technical report?

The Technical Report is available on SEDAR+ and will be posted shortly on PMET Resources' investor website.

Who prepared the NI 43-101 Technical Report for PMET's CV5 Feasibility Study?

The report was prepared by G Mining Services with independent contributions from multiple firms including Primero Group Americas, WSP, BBA, and others.

What dates are important for the PMET CV5 Feasibility Study report (PMETF)?

Important dates are the Effective Date: October 20, 2025 and the Issue Date: November 14, 2025; the filing was announced November 15, 2025.

Does the PMET (PMETF) Technical Report include mineral resource and reserve details for CV5?

Yes; the Technical Report addresses Mineral Resource, Mineral Reserve, and life-of-mine planning and includes qualifications, assumptions and risks.