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WDO.TO ·

Wesdome Announces Third Quarter 2025 Operating Results and Record Quarterly Production

Production Results

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Wesdome Gold Mines Ltd

TSX: WDO

OTCQX: WDOFF

www.wesdome.com

WESDOME ANNOUNCES THIRD QUARTER 2025 OPERATING RESULTS

AND RECORD QUARTERLY PRODUCTION

All amounts are expressed in Canadian dollars unless otherwise indicated

Toronto, Ontario – October 21, 2025 – Wesdome Gold Mines Ltd. (TSX: WDO , OTCQX: WDOFF) (“Wesdome”

or the “Company”) today announces its operating results for the three and nine months ended September 30, 2025

(“Q3 2025” and “YTD 2025”). The Company is also providing notice that it will release its financial results after

markets close on Tuesday, November 4, 2025, and host a conference call and webcast the following morning.

Q3 and YTD 2025 Operating Performance

Q3 2025 Q3 2024 % Change YTD 2025 YTD 2024 % Change

Ore milled (tonnes)

Eagle River 71,575 57,984 23% 180,208 162,168 11%

Kiena 50,147 51,321 (2%) 149,136 154,334 (3%)

Average grade (grams per tonne)

Eagle River 15.3 13.1 17% 15.9 13.4 18%

Kiena 10.2 13.1 (22%) 10.6 11.1 (5%)

Gold production (ounces)

Eagle River 34,296 23,688 45% 88,907 67,859 31%

Kiena 16,169 21,421 (25%) 50,031 54,607 (8%)

Total gold production 50,465 45,109 12% 138,938 122,466 13%

Production sold (ounces) 47,400 42,900 10% 138,600 118,600 17%

Anthea Bath, President and C hief Executive Officer, commented, “This quarter’s consolidated production of more

than 50,000 ounces set a new high-water mark for Wesdome driven by record production from Eagle River.

“Eagle River had a n exceptional third quarter, once again setting records for mill throughput and gold production.

Benefits from ongoing efforts to debottleneck the mill, improve dilution, and increase ore availability are materializing

and resulting in increased production at lower unit costs, all while advancing critical development. Eagle River is on

track to deliver the high-end of full-year production guidance.

“As previously indicated, Kiena conducted a longer than planned hoist shutdown in July, which resulted in more

than two weeks without mill feed. While forecasts at the time suggested that the shortfall could be recovered,

inconsistent execution together with limited operational flexibility continued to impact performance through August

and September. Kiena’s fourth quarter is expected to be its strongest of the year , as high-grade ore from Kiena

Deep is augmented by ore from Presqu’île. Kiena’s 2025 guidance will be updated with the release of our financial

results in early November . Importantly, we remain on track to meet full -year consolidated production guidance ,

albeit toward the lower end of the range.

“With record gold prices and strong production driving substantial free cash flow, our financial position continues to

grow and strengthen – with $266 million in cash and total liquidity of more than $600 million at the end of September.

This allows us to advance our organic growth initiatives while initiating a return of capital to shareholders.

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Accordingly, we have filed a notice of intention with the Toronto Stock Exchange to implement a normal course

issuer bid for Wesdome shares.

“We are also pleased to announce the recent publication of our sixth annual Environmental, Social, and Governance

Report which reflects our ongoing commitment to safe operations, meaningful partnerships with Indigenous and

local communities, and reducing o ur environmental impact. Responsible mining is at the heart of Wesdome’s role

as a trusted neighbor and employer.”

Wesdome’s 2024 Environmental, Social, and Governance report has been filed on SEDAR+ and can be found here.

Conference Call and Webcast

Management will host a conference call and webcast to discuss the Company’s financial and operating results. A

question-and-answer session will follow management’s prepared remarks. Details of the webcast are as follows:

Date and time: Wednesday, November 5, 2025 at 10:00 a.m. ET

Dial-in numbers: To access the call by telephone, dial 1.646.968.2525 or 1.888.596.4144 (toll-free).

The event passcode is: 8215935. Please allow up to 10 minutes to be connected.

Webcast link: https://events.q4inc.com/attendee/584921644

Pre-registration is required for this event. It is recommended you join 10 minutes prior to

the start of the event. The webcast can also be accessed from the home page of the

Company’s website at www.wesdome.com.

The Company’s financial statements and management ’s discussion and analysis will be available at

www.wesdome.com and on SEDAR+ www.sedarplus.ca the evening of Tuesday, November 4, 2025.

About Wesdome

Wesdome is a Canadian-focused gold producer with two high -grade underground assets, the Eagle River mine in

Ontario and the Kiena mine in Québec. The Company’s primary goal is to responsibly leverage its operating platform

and high-quality brownfield and greenfield exploration pipeline to build a growing value-driven gold producer.

For Further Information

Raj Gill Trish Moran

SVP, Corporate Development & Investor Relations VP, Investor Relations

Phone: +1.416.360.3743 Phone: +1.416.564.4290

E-Mail: [email protected] E-mail: [email protected]

Technical Disclosure

The technical and geoscientific content of this press release have been reviewed, and approved by Guy Belleau,

P.Eng, Chief Operating Officer of the Company , a "Qualified Person" as defined in National Instrument 43 -101 -

Standards of Disclosure for Mineral Projects.

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Forward-Looking Statements

This press release contains "forward -looking information" within the meaning of applicable Canadian securities

legislation, which is based on expectations, estimates, projections, and interpretations as of the date of this release.

Forward-looking informat ion includes, without limitation, statements regarding: the timing of the Company’s Q3

2025 financial results and related conference call and webcast; Eagle River being on track to achieve the high end

of full-year production guidance; the expectation of a stronger fourth quarter for Kiena; the expected update and

timing of Kiena’s 2025 guidance in early November 2025; and the Company being on track to meet full -year

consolidated production guidance, albeit toward the lower end of the range .

These forward -looking statements involve various risks and uncertainties and are based on certain factors and

assumptions. Furthermore, should one or more of the risks, uncertainties or other factors materialize, or should

underlying assumptions prove incorrect, actual results may vary materially from those described in forward-looking

statements or information. These risks, uncertainties and other factors including those risk factors discussed in the

sections titled “Cautionary Note Regarding Forward Looki ng Information” and “Risks and Uncertainties” in the

Company’s most recent Annual Information Form. Readers are urged to carefully review the detailed risk discussion

in our most recent Annual Information Form which is available on SEDAR+ and on the Compan y’s website.

There can be no assurance that forward -looking statements or information will prove to be accurate, as actual

results and future events could differ materially from those anticipated in such statements. The Company

undertakes no obligation to update forwar d-looking statements if circumstances, management’s estimates or

opinions should change, except as required by securities legislation. Accordingly, the reader is cautioned not to

place undue reliance on forward-looking statements.