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Doré Copper Announces Closing of C$5.75 Million Private Placement of Common Shares and Flow-Through Shares Including Full Exercise of Agents' Option

Financings Mergers & Acquisitions

PRESS RELEASE

DORÉ COPPER ANNOUNCES CLOSING OF C$5.75 MILLION PRIVATE

PLACEMENT OF COMMON SHARES AND FLOW-THROUGH SHARES INCLUDING

FULL EXERCISE OF AGENTS' OPTION

Not for distribution to United States news wire services or for dissemination in the United States

Toronto, Ontario – October 21, 2022 – Doré Copper Mining Corp. (the "Corporation" or "Doré Copper")

(TSX-V:DCMC; OTCQ B:DRCMF; FRA:DRM) is pleased to announce that it has closed its previously

announced "best efforts " private placement (the " Offering"), pursuant to which the Corporation sold an

aggregate of (i) 7,666,820 common shares in the capital of the Corporation (the " Offered Common

Shares") at a price of $0.30 per Offered Common Share for gross proceeds of $2,300,046 and (ii) 9,583,525

common shares in the capital of the Corporation that will qualify as "flow -through shares" (within the

meaning of subsection 66(15) of the Income Tax Act (Canada) and section 359 .1 of the Taxation Act

(Québec)) (the "Flow-Through Shares") at a price of $0.36 per Flow-Through Share for gross proceeds of

$3,450,069, for aggregate gross proceeds to the Corporation of $ 5,750,115, including the full exercise of

the agents' option.

Cormark Securities Inc., Desjardins Securities Inc. and Paradigm Capital Inc. acted as agents (collectively,

the "Agents") in connection with the Offering pursuant to the terms of an agency agreement dated October

21, 2022. In consideration for their services in connection with the Offering, the Corporation paid the Agents

a cash commission equal to $329,555, being 6% of the aggregate gross proceeds from the sale of Offered

Common Shares and Flow-Through Shares, and a reduced cash commission equal to 3% of the aggregate

gross proceeds from the sale of Offered Common Shares to certain subscribers on the President's Li st. In

addition, the Corporation also paid fees in the aggregate amount of approximately $35,753 (plus applicable

taxes) in respect of two subscriptions under the Offering.

The net proceeds from the sale of the Offered Common Shares will be used for exploration and

development activities and for working capital and general corporate purposes. The Corporation will (a) use

an amount equal to the gross proceeds received by the C orporation from the sale of the Flow -Through

Shares, pursuant to the provisions in the Income Tax Act (Canada), to incur, directly or indirectly, expenses

("Qualifying Expenditures") related to the Corporation's projects in Québec, on or before December 31 ,

2023, that are eligible "Canadian exploration expenses" (as defined in the Income Tax Act (Canada)), of

which (i) at least 50% will qualify, if available under applicable law, as "flow -through critical mineral mining

expenditures" (as proposed to be defined in the legislative proposals relating to the Income Tax Act

(Canada) published by the Department of Finance on August 9, 2022 (the " Tax Proposals")), and (ii) the

remainder will qualify as "flow -through mining expenditures" (as defined in the Income Tax Act (Canada),

as proposed to be amended by the Tax Proposals), and (b) renounce all the Qualifying Expenditures in

favour of the subscribers of the Flow-Through Shares effective December 31, 2022. In addition, with respect

to Québec resident subscribers who are eligible individuals under the Taxation Act (Québec), the Canadian

exploration expenses will also qualify for inclusion in the "exploration base relating to certain Québec

exploration expenses" within the meaning of section 726.4.10 of the Taxation Act (Québec) and for inclusion

in the "exploration base relating to certain Québec surface mining expenses or oil and gas exploration

expenses" within the meaning of section 726.4.17.2 of the Taxation Act (Québec).

Joseph de la Plante, a director of the Corporation, and funds managed by Equinox Partners Investment

Management, LLC (" Equinox Partners "), an insider of the Corporation, subscribed for 135,000 Flow -

Through Shares and 3,450,000 Offered Common Shares, respectively, under the Offering on the same

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terms as arm's length investors. The participation of Mr. de la Plante and Equinox Partners in the Offering

constitutes a "related party transaction" for the purposes of Multilateral Instrument 61 -101 – Protection of

Minority Security Holders in Special Transactions ("MI 61 -101"). The Corporation is exempt from the

requirements to obtain a formal valuation or minority shareholder approval in connection with the Offering

in reliance on sections 5.5(a) and 5.7(1)(a), respectively, of MI 61 -101, as neither the fair market value of

the securities issued to the related parties nor the fair market value of the consideration for the securities

issued to the related parties exceeds 25% of the Corporation's market capitalization as calculated in

accordance with MI 61-101. The Corporation did not file a material change report more than 21 days before

the expected closing date of the Offering as the aforementioned insider participation had not been

confirmed at that time and the Corporation wished to close the Offering as expeditiously as po ssible.

The Offering was made by way of private placement in each of the provinces of Canada pursuant to

applicable exemptions from the prospectus requirements and, in the case of the Offered Common Shares,

in certain other jurisdictions, in each case in accordance with all applicable laws. The Offering of the Offered

Common Shares was conducted on a private placement basis to persons in the United States who are

"qualified institutional buyers", as such term is defined in Rule 144A under the United States Securities Act

of 1933, as amended (the " U.S. Securities Act "), who are also "accredited investors", as such term is

defined in Rule 501(a) of Regulation D under the U.S. Securities Act ("Regulation D"), and, in each case,

in compliance with Rule 506(b) of Regulation D and applicable United States securities laws. The securities

issued under the Offering are subject to a four month hold period under applicable Canadian securities laws

which will expire on February 22 , 2023. The Offering is subject to final acceptance of the TSX Venture

Exchange.

The securities offered have not been and will not be registered under the U.S. Securities Act or any state

securities law, and may not be offered, sold or delivered, directly or in directly, within the United States, or

to or for the account or benefit of U.S. persons, absent registration or an exemption from such registration

requirements. This news release does not constitute an offer to sell or the solicitation of an offer to buy nor

shall there be any sale of securities in any state in the United States in which such offer, solicitation or sale

would be unlawful prior to registration or qualification under the securities laws of that jurisdiction. The

securities referenced herein have not been approved or disapproved by any regulatory authority.

About Doré Copper Mining Corp.

Doré Copper Mining Corp. aims to be the next copper producer in Québec with an initial production target

of +50 million pounds of copper equivalent annually by implementing a hub -and spoke operation model

with multiple high-grade copper-gold assets feeding its centralized Copper Rand mill1. The Corporation has

delivered its PEA in May 2022 and is proceeding with a feasibility study.

The Corporation has consolidated a large land package in the prolific Lac Doré/Chibougamau and Joe

Mann mining camps that has historically produced 1.6 billion pounds of copper and 4.4 million ounces of

gold2. The land package includes 13 former producing mines , deposits and resource target areas within a

60-kilometer radius of the Corporation's Copper Rand Mill.

For further information, please visit the Corporation's website at www.dorecopper.com or refer to Doré

Copper's SEDAR filings at www.sedar.com or contact:

Ernest Mast Laurie Gaborit

President and Chief Executive Officer Vice President, Investor Relations

Phone: (416) 792-2229 Phone: (416) 219-2049

Email: [email protected] Email: [email protected]

1. Technical report titled "Preliminary Economic Assessment for the Chibougamau Hub -and-Spoke Complex, Québec, Canada"

dated June 15, 2022, in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI 43-101").

The Technical Report was prepared by BBA Inc. with several consulting firms contributing to sections of the study, including SLR

Consulting (Canada) Ltd., SRK Consulting (Canada) Inc. and WSP Inc.

2. Sources for historic production figures: Economic Geology, v. 107, pp. 963 –989 - Structural and Stratigraphic Controls on

Magmatic, Volcanogenic, and Shear Zone -Hosted Mineralization in the Chapais -Chibougamau Mining Camp, Northeastern

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Abitibi, Canada by F rançois Leclerc et al. (Lac Dore/Chibougamau mining camp) and NI 43 -101 Technical Report on the Joe

Mann Property dated January 11, 2016 by Geologica Groupe-Conseil Inc. for Jessie Ressources Inc. (Joe Mann mine).

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain "forward -looking statements" under applicable Canadian and United

States securities legislation. Forward -looking statements include, but are not limited to, statements with

respect to the use of proceeds of the Offering, the timing and ability of the Corporation to receive necessary

regulatory approvals, including the final acceptance of the Offering from the TSX Venture Exchange, the

renunciation to the purchasers of the Flow -Through Shares and timing thereof, the tax treatment of the

Flow-Through Shares, the Corporation's ability to meet its production target, the commencement, timing

and completion of a feasibility study, and the plans, operations and prospects of the Corporation. Forward-

looking statements are necessarily based upon a number of estimates and assumptions that, while

considered reasonable, are subject to known and unknown risks, uncertainties and other factors which may

cause the actual results and future events to differ materially from those expressed or implied by such

forward-looking statements. Such factors include, but are not limited to: general business, economic,

competitive, political and social unc ertainties; delay or failure to receive regulatory approvals; the price of

gold and copper; and the results of current exploration. There can be no assurance that such statements

will prove to be accurate, as actual results and future events could differ m aterially from those anticipated

in such statements. Accordingly, readers should not place undue reliance on forward -looking statements.

The Corporation disclaims any intention or obligation to update or revise any forward -looking statements,

whether as a result of new information, future events or otherwise, except as required by law.

Neither 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 adequac y or accuracy of this

news release.