CopAur Minerals to Update Current Kinsley Mountain Geology and Mineralization Model

Rhea-AI Summary

CopAur Minerals (COPAF) contracted APEX Geoscience to integrate ~20,000 metres of 2020 and 2023 reverse circulation and diamond drilling into the existing Kinsley Mountain geology and mineralization model.

Kinsley hosts 418,000 indicated ounces at 2.63 g/t Au and 117,000 inferred ounces at 1.51 g/t Au (total 535,000 ounces Indicated & Inferred), including 302,000 oz at 6.11 g/t in the high-grade Western Flank Zone. Selected near-surface oxide intercepts from 2020/23 include 9.83 g/t over 7.6 m and 2.22 g/t over 25.9 m. The modelling will target near-surface oxide exploration zones that could inform future heap-leach recovery and oxide resource expansion.

Positive

• Total resource: 535,000 oz Indicated & Inferred
• Indicated ounces: 418,000 oz @ 2.63 g/t Au
• High-grade Western Flank: 302,000 oz @ 6.11 g/t Au
• ~20,000 m of drill data being integrated
• Notable near-surface intercept: 9.83 g/t Au over 7.6 m

Negative

• Inferred ounces: 117,000 oz at 1.51 g/t Au (higher uncertainty)
• Project idle since 1998 after prior operator suspended operations

Vancouver, British Columbia--(Newsfile Corp. - November 27, 2025) - Andrew Neale, CEO of CopAur Minerals Inc. (TSXV: CPAU) (the “Company”) is pleased to report that the Company has contracted APEX Geoscience Ltd. of Edmonton, AB to begin work to integrate the results of approximately 20,000 meters of reverse circulation and diamond core drilling completed in 2020 and 2023 into the existing Kinsley Mountain geology and mineralization model. Kinsley hosts current mineral resources of 418,000 indicated ounces at 2.63 g/t gold and 117,000 inferred ounces at 1.51 g/t gold, (a total of 535,000 ounces Indicated & Inferred) which include 302,000 ounces averaging 6.11 g/t gold within the high-grade Western Flank Zone¹.

"These drill programs were primarily an expansive exploration and near resource focused effort that looked to equally make (i) new discoveries and (ii) target near resource expansion around the Main Pit. This modeling effort will further delineate near surface oxide exploration targets that could be considered for potential heap leach recovery in the future and provide the Company with further direction for continued oxide resource expansion exploration efforts," commented Andrew Neale.

Near surface oxide intercepts from the 2020/23 drill programs, as previously reported, include²:

• 9.83 g/t gold over 7.6 metres within a broader zone grading 2.88 g/t Au over 36.6 metres in KMR20-030 at Mine Pit North located 75 metres north of the existing resource pit shell.
• 2.22 g/t Au over 25.9 metres; including 4.2 g/t Au over 10.7 metres in KMR23-03 at Main Pit North outside the resource pit shell.
• 1.77 g/t gold over 25.3 metres in KMD20-07B, a new surface oxide discovery at Secret Spot.

Kinsley was last in production in 1998, when gold prices averaged around US$360 per ounce. Alta Gold suspended operations to pursue another project and later entered bankruptcy, leaving Kinsley idle despite its strong exploration and development potential.

Qualified Person

The scientific and technical information contained in this news release has been reviewed and approved by Kristopher J. Raffle, P.Geo. (BC), Principal and Consultant of APEX Geoscience Ltd. of Edmonton, AB, and "Qualified Person" as defined in National Instrument 43-101 - Standards of Disclosure for Mineral Projects.

About CopAur

CopAur is a mine development company focused on projects within the emerging, mineral-rich gold mining regions of Nevada. The Company is backed by a dynamic and experienced team of resource professionals advancing its projects in Nevada with the flagship project being Kinsley Mountain Gold Project, a Carlin-style project located in the Kinsley Mountains in Eastern Nevada, approximately 80 km SSW of West Wendover.

ON BEHALF OF COPAUR MINERALS INC.

Andrew Neale, CEO

For more information, please contact ir@copaur.com

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

Forward-Looking Information

This news release contains forward-looking statements. All such statements involve substantial known and unknown risks, uncertainties and other factors which may cause the actual results to vary from those expressed or implied by such forward-looking statements. Forward-looking statements involve significant risks and uncertainties, they should not be read as guarantees of future performance or results and they will not necessarily be accurate indications of whether or not such results will be achieved. Actual results could differ materially from those anticipated due to a number of factors and risks. Although the forward-looking statements contained in this news release are based upon what management of the Company believes are reasonable assumptions on the date of this news release, the Company cannot assure investors that actual results will be consistent with these forward-looking statements. The forward-looking statements contained in this press release are made as of the date hereof and the Company disclaims any intention or obligation to update or revised any forward-looking statements whether as a result of new information, future events or otherwise, except as required under applicable securities regulations.

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¹ Technical Report on the Kinsley Project, Elko County, Nevada, U.S.A., dated June 21, 2021, with an effective date of May 5, 2021, and prepared by Michael M. Gustin and Gary L. Simmons, and filed under New Placer Dome Gold Corp.'s issuer profile on SEDAR (www.sedar.com).

² True widths if the mineralized intervals are interpreted to be between 60-90% of the reported lengths. See news releases dated April 29, 2021, and October 4, 2023.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/276080

FAQ

What resource does CopAur (COPAF) report for Kinsley Mountain as of Nov 27, 2025?

Kinsley hosts 418,000 indicated oz @ 2.63 g/t and 117,000 inferred oz @ 1.51 g/t, total 535,000 oz Indicated & Inferred.

How much drilling will APEX Geoscience integrate for COPAF's Kinsley model?

APEX will integrate approximately 20,000 metres of reverse circulation and diamond drilling from 2020 and 2023.

What high-grade zone is included in CopAur's Kinsley resource and its grade?

The Western Flank Zone contains 302,000 oz averaging 6.11 g/t Au.

Which near-surface drill intercepts from 2020/23 did CopAur report at Kinsley?

Selected intercepts include 9.83 g/t Au over 7.6 m and 2.22 g/t Au over 25.9 m from near-surface oxide drilling.

What is the purpose of CopAur's updated geology and mineralization model for COPAF?

To delineate near-surface oxide exploration targets and guide continued oxide resource expansion and potential heap-leach recovery evaluation.

Why was Kinsley idle prior to CopAur's recent work?

Kinsley was last in production in 1998 when the prior operator suspended operations and later entered bankruptcy.