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Doré Copper Announces up to C$5 Million Private Placement of Common Shares and Flow-Through Shares

Financings

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PRESS RELEASE

DORÉ COPPER ANNOUNCES UP TO C$5 MILLION PRIVATE PLACEMENT OF

COMMON SHARES AND FLOW-THROUGH SHARES

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

Toronto, Ontario September 29, 2022 Doré Copper Mining Corp. (the "Corporation" or "Doré Copper")

(TSX-V:DCMC; OTCQB:DRCMF; FRA:DRM) is pleased to announce that it has entered into an agreement

pursuant to which Cormark Securities Inc. ("Cormark"), as lead agent, on behalf of a syndicate of agents

(collectively, the "Agents"), has agreed to

with a private placement of: (i) up to 6,666,800 common shares in the capital of the Corporation (the

"Offered Common Shares ") at a price of $0.30 per Offered Common Share (the " Common Share

Offering Price") for gross proceeds of up to approximately $2,000,040 and (ii) up to 8,333,500 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 up to

approximately $3,000,060, for aggregate gross proceeds to the Corporation of up to approximately

$5,000,100 (collectively, the "Offering").

The Agents will have the option, exercisable in whole or in part at any time up to 48 hours prior to the closing

of the Offering, to arrange for the purchase of up to an additional 1,000,020 Offered Common Shares at

the Common Share Offering Price and 1,250,025 Flow -Through Shares at a price of $0.36 per Flow -

Through Share.

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 Corporation 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 "flo w-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).

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The Offering is expected to close on or about October 21, 2022, or such other date as the Corporation and

Cormark, on behalf of the Agents, may agree and is subject to certain conditions including, but not limited

to, the receipt of all necessary regulatory and other approvals including the acceptance of the TSX Venture

Exchange.

The Offering will be made 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,

such other jurisdictions, in each case in accordance with all applicable laws, provided that no prospectus,

registration statement or other similar document is required to be filed in such jurisdiction. The securities

issued under the Offering will be subject to a four month hold period under applicable Canadian securities

laws.

The securities offered have not been, nor will they be, registered under the United States Securities Act

of 1933, as amended, or any state securities law, and may not be offered, sold or deliver ed, directly or

indirectly, 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.

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 mill. The Corporation has

delivered its PEA in May 2022 and plans to commence a feasibility study and submit the Preliminary

Information Statement of the Environmental and Social Impact Assessment (ESIA) in Q3 2022. The

Corporation has consolidated a large land packag e 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 gold.

The land package includes 13 former producing mines, deposits and resource target areas within a 60-

.

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]

Cautionary Note Regarding Forward-Looking Statements

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

legislation. Forward-looking statements include, but are not limited to, statements with respect to the terms

of the Offering, the use of proceeds of the Offering, the timin g and ability of the Corporation to close the

Offering, the timing and ability of the Corporation to receive necessary regulatory approvals, including the

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, 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 uncertainties; 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 materially from those anticipated in such statements. Accordingly, readers should not

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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 Ser vices 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.