Moon River Moly Ltd. Announces Filing of Technical Report for the Endako Mine Restart Preliminary Economic Assessment

Rhea-AI Summary

Moon River Moly (OTCQB: MRIVF) filed an independent NI 43-101 Technical Report for the Endako Mine Restart Preliminary Economic Assessment (PEA) with an effective date of November 21, 2025. The filing is available on SEDAR+ and the company's website. The Endako complex in British Columbia is currently on care and maintenance and includes an open-pit molybdenum mine, concentrator, and roaster approximately 190 km west of Prince George.

Moon River holds a 25% interest in the Endako Mine following an indirect acquisition completed on May 30, 2024; Centerra holds the remaining 75% through a joint venture. The company disclosed that Centerra did not participate in or endorse the PEA. The report was prepared by A-Z Mining Professionals Ltd. and reviewed by QP Brian LeBlanc, P.Eng.

The press release includes an internal date inconsistency: the filing is described as dated January 5, 2026 but later referenced as dated January 5, 2025 with the same effective date.

Positive

• Filed a NI 43-101 PEA with effective date Nov 21, 2025
• Holds a 25% interest in Endako following acquisition on May 30, 2024
• Technical report prepared by A-Z Mining Professionals Ltd. and QP-approved

Negative

• Endako mine is on care and maintenance, not in production
• Joint-venture partner Centerra (75%) did not participate in or endorse the PEA
• Press release contains a date inconsistency (Jan 5, 2026 vs Jan 5, 2025)

News Market Reaction

-1.44%

1 alert

-1.44% News Effect

On the day this news was published, MRIVF declined 1.44%, reflecting a mild negative market reaction.

Data tracked by StockTitan Argus on the day of publication.

Toronto, Ontario--(Newsfile Corp. - January 5, 2026) - Moon River Moly Ltd. (TSXV: MOO) (OTCQB: MRIVF) ("Moon River" or the "Company") announces that the Company has filed an independent technical report entitled the National Instrument NI 43-101 Technical Report for the Endako Mine Restart Preliminary Economic Assessment ("PEA") (the "Endako Mine Restart Technical Report") dated January 5, 2026 with an effective date of November 21, 2025.

The Endako mine complex in British Columbia (the "Endako Mine"), currently on care and maintenance, is comprised of an open-pit molybdenum mine, concentrator, and roaster, located approximately 190 kilometres west of Prince George, British Columbia. The PEA examines the potential restart of operations at the Endako Mine.

On May 30, 2024, Moon River completed the indirect acquisition of a 25% interest in the Endako Mine from Sojitz Corporation ("Sojitz"), a Japanese multi-national company. The Endako Mine is jointly owned by Moon River (25%) and Centerra Gold Inc. ("Centerra") (75%) and operates through a joint venture company. While Centerra is aware that this PEA was being prepared for Moon River, it has neither participated in nor endorsed the work.

The Endako Mine Restart Technical Report is available under the Company's profile on SEDAR+ at www.sedarplus.ca and on the Company's website at www.moonrivermoly.com.

There are no material differences in the Endako Mine Restart Technical Report from the disclosure in the Company's news release dated November 21, 2025. The Report is dated January 5, 2025, with an effective date of November 21, 2025.

The Report was prepared by A-Z Mining Professionals Ltd. ("AMPL").

Qualified Person(s)

The scientific and technical content of this news release was reviewed, verified, and approved by Mr. Brian LeBlanc, P. Eng., President of AMPL, and a "Qualified Person" ("QP") as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects. Mr. LeBlanc is the QP responsible for the scientific and technical information contained in this press release.

About Moon River
Moon River is a Canadian-based resource company focused on the acquisition, exploration and development of mineral projects. Moon River is focused on the development of the Davidson Property which hosts a large molybdenum-tungsten deposit and is located near Smithers, British Columbia. The Company also holds 25% of one of the largest molybdenum mines in North America, the Endako Mine Complex also located in British Columbia.

For further information, please contact:
Paul Parisotto, President, Chief Executive Officer and Director, at (416) 800-1753 or info@moonrivermoly.com.

Neither the TSXV nor its Regulation Services Provider (as that term is defined in the policies of the TSXV) accepts responsibility for the adequacy or accuracy of this release.

Forward-looking Statements:

This press release contains forward-looking statements and forward-looking information (collectively, "forward-looking statements") within the meaning of applicable securities laws. Any statements that are contained in this press release that are not statements of historical fact may be deemed to be forward-looking statements. Forward-looking statements are often identified by terms such as "may", "should", "anticipate", "will", "estimates", "believes", "intends", "expects", "plans" and similar expressions, which are intended to identify forward-looking statements.

These forward-looking statements reflect the current views of the Company, represent the expectations of the Company as of the date of this news release, and are based on certain assumptions that the Company has made in respect thereof as at the date of this press release.

Although the Company believes the expectations and material factors and assumptions reflected in these forward-looking statements are reasonable as of the date hereof, there can be no assurance that the expectations and assumptions in the PEA, will prove to be correct. The forward-looking statements are not guarantees of future performance and are subject to a number of known and unknown risks and uncertainties including risks detailed in the Company's continuous disclosure, which are available on SEDAR+ at www.sedarplus.ca. Accordingly, readers should not place undue reliance on the forward-looking statements contained in the PEA or this press release.

These risk factors should not be construed as exhaustive. Readers are cautioned that events or circumstances could cause results to differ materially from those predicted, forecasted or projected. The forward-looking statements contained in this document speak only as of the date of this document. The Company does not undertake any obligation to publicly update or revise any forward-looking statements or information, except as required by applicable laws. The forward-looking statements contained in this document are expressly qualified by this cautionary statement.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/279435

FAQ

What did Moon River (MRIVF) file on January 5, 2026 regarding the Endako Mine?

Moon River filed an independent NI 43-101 Technical Report for the Endako Mine Restart PEA with effective date Nov 21, 2025.

Where can investors access the Endako Mine Restart Technical Report for MRIVF?

The report is available under Moon River's profile on SEDAR+ and on www.moonrivermoly.com.

How much ownership does Moon River (MRIVF) have in the Endako Mine and when was it acquired?

Moon River holds a 25% interest in the Endako Mine following an indirect acquisition completed on May 30, 2024.

Does the joint‑venture partner Centerra endorse the PEA filed by Moon River (MRIVF)?

Centerra, which holds 75% of the joint venture, did not participate in or endorse the PEA according to the filing.

Who prepared and certified the Endako Mine Restart Technical Report for MRIVF?

The report was prepared by A-Z Mining Professionals Ltd. and reviewed and approved by QP Brian LeBlanc, P.Eng..

Is the Endako Mine currently producing and how might that affect MRIVF?

The Endako Mine is currently on care and maintenance, so the PEA examines potential restart scenarios rather than current production metrics.