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SASK.V ·

ATHA Announces Filing of Annual Information Form and Preliminary Short Form Prospectus

Financings Financials

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

ATHA Announces Filing of Annual Information Form and Preliminary Short Form

Prospectus

Vancouver, British Columbia, October 21, 2025 – ATHA Energy Corp. (TSX.V: SASK) (FRA: X5U)

(OTCQB: SASKF) (“ATHA” or the “Company”), is pleased to announce that, further to its press releases

dated September 18, 2025 and August 11, 2025, the Company has filed its annual information form for

the fiscal year ended December 31, 2024 (the “ AIF”), and a preliminary short form prospectus (the

“Prospectus”) with the securities commissions in British Columbia, Alberta, Saskatchewan, Manitoba,

Ontario and New Brunswick, in connection with the proposed qualification of up to 18,838,752 units (the

“Units”) of the Company issuable upon the exercise or deemed exercise of 17,126,138 special warrants

(“Special Warrants ”) of the Company issued in connection with its previously announced private

placement.

Each Unit shall consist of one common share in the capital of the Company and one common share

purchase warrant. The Special Warrants were issued pursuant to the terms of special warrant indentures

dated September 18, 2025 between the Company and Odyssey Trust Company and an underwriting

agreement dated September 18, 2025 between the Company and Stifel Nicolaus Canada Inc. as lead

underwriter and sole bookrunner together with a syndicate of underwriters, including Red Cloud

Securities Inc. and Paradigm Capital Inc.

Copies of each of the AIF and Prospectus are available under the Company’s SEDAR+ profile at

www.sedarplus.ca.

This news release does not constitute an offer to sell or a solicitation of an offer to buy any of the securities

in the United States. The securities have not been and will not be registered under the United States

Securities Act of 1933, as amended (the “U.S. Securities Act”) or any state securities laws and may not

be offered or sold within the United States unless registered under the U.S. Securities Act and applicable

state securities laws or an exemption from such registration is available.

About ATHA

ATHA is a Canadian mineral company engaged in the acquisition, exploration, and development of

uranium assets in the pursuit of a clean energy future. With a strategically balanced portfolio including

three 100%-owned post discovery uranium projects (the A ngilak Project located in Nunavut, and CMB

Discoveries in Labrador, and the newly discovered basement hosted GMZ high-grade uranium discovery

located in the Athabasca Basin). In addition, the Company holds the largest cumulative prospective

exploration land package (>7 million acres) in two of the world’s most prominent basins for uranium

discoveries – ATHA is well positioned to drive value. ATHA also holds a 10% carried interest in key

Athabasca Basin exploration projects operated by NexGen Energy Ltd. and IsoEnergy Ltd. For more

information visit www.athaenergy.com.

On Behalf of the Board of Directors

Troy Boisjoli, CEO, ATHA Energy Corp.

About ATHA

visit www.athaenergy.com.

On Behalf of the Board of Directors

Troy Boisjoli, CEO, ATHA Energy Corp

For more information, please contact:

Troy Boisjoli

Chief Executive Officer

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Email: [email protected]

Website: www.athaenergy.com

Phone: 1-(236)-521-0526

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

release.

Cautionary Statement Regarding Forward-Looking Information

This press release contains “forward -looking information” within the meaning of applicable Canadian

securities legislation. Generally, forward-looking information can be identified by the use of forward-looking

terminology such as “plans”, “expects” or “do es not expect”, “is expected”, “budget”, “scheduled”,

“estimates”, “forecasts”, “intends”, “anticipates” or “does not anticipate”, or “believes”, or variations of such

words and phrases or state that certain actions, events or results “may”, “could”, “would”, “might” or “will be

taken”, “occur” or “be achieved”. These forward -looking statements or information may relate to , without

limitation, the Company’s filing and obtaining a receipt for a (final) short form prospectus qualifying the

distribution of the Units.

Forward-looking statements are necessarily based upon a number of assumptions that, while considered

reasonable by management at the time, are inherently subject to business, market and economic risks,

uncertainties and contingencies that may cause actual results, performance or achievements to be

materially different from those expressed or implied by forward -looking statements. Such assumptions

include, but are not limited to, assumptions that the anticipated benefits of ATHA’s proposed exploration

program will be realized, that no additional permit or licenses will be required in connection with ATHA’s

exploration programs, the ability of ATHA to complete its exploration activities as currently expected and

on the current anticipated timelines, including ATHA’s proposed exploration program, that ATHA will be

able to execute on its current plans, that ATHA’s proposed explorations will yield results as expected, and

that general business and economic conditions will not change in a material adverse manner. A lthough

ATHA has attempted to identify important factors that could cause actual results to differ materially from

those contained in forward-looking information, there may be other factors that cause results not to be as

anticipated, estimated or intended . There can be no assurance that such information will prove to be

accurate, as actual results and future events could differ materially from those anticipated in such

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

Such statements represent the current view of ATHA with respect to future events and are necessarily

based upon a number of assumptions and estimates that, while considered reasonable by ATHA, are

inherently subject to significant business, economic, compe titive, political and social risks, contingencies

and uncertainties. Risks and uncertainties include, but are not limited to the following: inability of ATHA to

realize the benefits anticipated from the exploration and drilling targets described herein or elsewhere;

inability of ATHA to complete current exploration plans as presently anticipated or at all; inability for ATHA

to economically realize on the benefits, if any, derived from the exploration program; failure to complete

business plans as it curren tly anticipated; overdiversification of ATHA’s portfolio; failure to realize on

benefits, if any, of a diversified portfolio; unanticipated changes in market price for ATHA shares; changes

to ATHA’s current and future business and exploration plans and the strategic alternatives available thereto;

growth prospects and outlook of the business of ATHA; and the ability to advance the Company projects

and its proposed exploration program; risks inherent in mineral exploration including risks related worker

safety, weather and other natural occurrences, accidents, availability of personnel and equipment, and

other factors; aboriginal title; failure to obtain regulatory and permitting approvals; no known mineral

resources/reserves; reliance on key management and o ther personnel; competition; changes in laws and

regulations; uninsurable risks; delays in governmental and other approvals, community relations; stock

market conditions generally; demand, supply and pricing for uranium; and general economic and political

conditions in Canada, Australia and other jurisdictions where ATHA conducts business. Other factors which

could materially affect such forward-looking information are described under the heading “Risk Factors” in

the Prospectus, AIF and elsewhere in the filings of ATHA with the Canadian securities regulators which are

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available on ATHA’s profile on SEDAR+ at www.sedarplus.ca. ATHA does not undertake to update any

forward-looking information, except in accordance with applicable securities laws.