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888-700 West Georgia, Vancouver, BC, V7Y 1G5

CopAur Early Warning News Release

Vancouver, British Columbia - December 4, 2025 - CopAur Minerals Inc. ("CopAur" or the "Company") (TSXV: CPAU) announces, pursuant to National Instrument 62-103, The Early Warning System and Related Take-Over Bid and Insider Reporting Issues, and National Instrument 62-104, Take-Over Bids and Issuer Bids, that it has acquired ownership of 3,300,000 common shares (the "Shares") of Omega Pacific Resources Inc. ("Omega Pacific") in connection with the amended option agreement dated November 20, 2025 (the "Option Agreement") between CopAur and Omega Pacific. The issuance of the Shares formed part of the consideration payable by Omega Pacific to acquire the remaining 49% interest in the Williams Property. The Direct Registration System (DRS) statement issued by Endeavor Trust Corporation is dated December 2, 2025. The Shares were delivered to CopAur on December 3, 2025, which is the date used for the acquisition.

Immediately prior to the acquisition, CopAur beneficially owned 3,000,000 Shares, representing approximately 7.16% of Omega Pacific's issued and outstanding common shares. After giving effect to the issuance of the Shares, CopAur beneficially own 6,300,000 common shares of Omega Pacific representing approximately 15.03% of Omega Pacific's issued and outstanding common shares on a non-diluted basis. The percentages are based on 41,908,168 common shares of Omega Pacific stated to be issued and outstanding.

CopAur acquired the Shares for investment purposes. Depending on market conditions and other factors, CopAur may acquire additional securities, may dispose of some or all of its securities, or may continue to hold its current position. CopAur has no present plans or intentions related to:

the acquisition or disposition of additional securities of Omega Pacific;

any merger, reorganization, or other corporate transaction involving Omega Pacific;

any change in the board of directors or management of Omega Pacific;

any material change in the capitalization or dividend policy of Omega Pacific;

any material change in the business or corporate structure of Omega Pacific; or

any action that would impede the acquisition of control of Omega Pacific or cause it to cease to be a reporting issuer.

A copy of the Early Warning Report filed by CopAur in connection with the acquisition is available under Omega Pacific's profile on SEDAR+ at www.sedarplus.ca, or may be obtained by contacting CopAur at:

CopAur Minerals Inc.

888 - 700 West Georgia Street

Vancouver, BC V7Y 1G5

Attention: Andrew Neale, Chief Executive Officer

Email: ir@copaur.com

Telephone: +1 604-839-9124

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 gold 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 or by phone at +1 604 839 9124.

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.

File: Attachment CPAU_NR_WarningR_Dec4_25.pdf

888-700 West Georgia, Vancouver, BC, V7Y 1G5

CopAur Early Warning News Release

Vancouver, British Columbia -- December 4, 2025 -- CopAur Minerals Inc. ("CopAur" or the "Company") (TSXV: CPAU) announces, pursuant to National Instrument 62-103, The Early Warning System and Related Take-Over Bid and Insider Reporting Issues, and National Instrument 62-104, Take-Over Bids and Issuer Bids, that it has acquired ownership of 3,300,000 common shares (the "Shares") of Omega Pacific Resources Inc. ("Omega Pacific") in connection with the amended option agreement dated November 20, 2025 (the "Option Agreement") between CopAur and Omega Pacific. The issuance of the Shares formed part of the consideration payable by Omega Pacific to acquire the remaining 49% interest in the Williams Property. The Direct Registration System (DRS) statement issued by Endeavor Trust Corporation is dated December 2, 2025. The Shares were delivered to CopAur on December 3, 2025, which is the date used for the acquisition.

Immediately prior to the acquisition, CopAur beneficially owned 3,000,000 Shares, representing approximately 7.16% of Omega Pacific's issued and outstanding common shares. After giving effect to the issuance of the Shares, CopAur beneficially own 6,300,000 common shares of Omega Pacific representing approximately 15.03% of Omega Pacific's issued and outstanding common shares on a non-diluted basis. The percentages are based on 41,908,168 common shares of Omega Pacific stated to be issued and outstanding.

CopAur acquired the Shares for investment purposes. Depending on market conditions and other factors, CopAur may acquire additional securities, may dispose of some or all of its securities, or may continue to hold its current position. CopAur has no present plans or intentions related to:

dot the acquisition or disposition of additional securities of Omega Pacific; dot any merger, reorganization, or other corporate transaction involving Omega Pacific; dot any change in the board of directors or management of Omega Pacific; dot any material change in the capitalization or dividend policy of Omega Pacific; dot any material change in the business or corporate structure of Omega Pacific; or dot any action that would impede the acquisition of control of Omega Pacific or cause it to cease to

be a reporting issuer.

A copy of the Early Warning Report filed by CopAur in connection with the acquisition is available under Omega Pacific's profile on SEDAR+ at www.sedarplus.ca, or may be obtained by contacting CopAur at:

CopAur Minerals Inc. 888 - 700 West Georgia Street Vancouver, BC V7Y 1G5 Attention: Andrew Neale, Chief Executive Officer Email: ir@copaur.com Telephone: +1 604-839-9124 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 gold 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 or by phone at +1 604 839 9124.

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.