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IsoEnergy Completes C$57.5 Million Bought Deal Financing

Financings

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IsoEnergy Completes C$57.5 Million Bought Deal Financing

All monetary amounts are expressed in Canadian Dollars, unless otherwise indicated.

Toronto, ON, January 27 , 202 6 – IsoEnergy Ltd. (NYSE American: ISOU; TSX: ISO) (the

“Company” or “IsoEnergy”) is pleased to announce that it has closed its previously announced

bought deal financing, pursuant to which the Company sold 3,833,410 common shares of the

Company (“Common Shares”) at a price of C$15.00 per Common Share for gross proceeds of

C$57,501,150 (the “Offering”), which includes the full exercise of the over-allotment option. The

Offering was conducted by a syndicate of underwriters, led by Stifel Canada, Canaccord Genuity

Corp. and Jett Capital Advisors, LLC (the “Underwriters”).

The proceeds from the Offering are expected to be used to fund the continued development and

further exploration of the Company's mineral properties, and for general corporate purposes.

Additionally, the Company anticipates that closing of its previously announced non -brokered

concurrent private placement (the “ Concurrent Private Placement”) with NexGen Energy Ltd.

(“NexGen”) will occur on or about the date hereof.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy

nor shall there be any sale of the securities in any state in which such offer, solicitation or

sale would be unlawful. The securities have not been, nor will t hey be, registered under

the United States Securities Act of 1933, as amended (the “U.S. Securities Act”) and may

not be offered or sold in the United States absent registration or an applicable exemption

from the registration requirements of the U.S. Secu rities Act, and applicable state

securities laws.

About IsoEnergy Ltd.

IsoEnergy (NYSE American: ISOU; TSX: ISO) is a leading, globally diversified uranium company

with substantial current and historical mineral resources in top uranium mining jurisdictions of

Canada, the U.S. and Australia at varying stages of development, providing near-, medium- and

long-term leverage to rising uranium prices. IsoEnergy is currently advancing its Larocque East

project in Canada’s Athabasca basin, which is home to the Hurricane deposit, boasting the world’s

highest-grade indicated uranium mineral resource. IsoEnergy also holds a portfolio of permitted

past-producing, conventional uranium and vanadium mines in Utah with a toll milling arrangement

in place with Energy Fuels. These mines are currently on standby, ready for rapid restart as market

conditions permit, positioning IsoEnergy as a near-term uranium producer.

For further information, please contact:

IsoEnergy Ltd.

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Philip Williams, CEO and Director

(833) 572-2333

[email protected]

Neither the Toronto Stock Exchange nor its Regulation Services Provider (as that term is

defined in the policies of the Exchange) accepts responsibility for the adequacy or

accuracy of this press release.

Disclosure regarding forward-looking statements

This press release contains “forward-looking statements” within the meaning of the United States

Private Securities Litigation Reform Act of 1995 and “forward -looking information” within the

meaning of applicable Canadian securities legislation (collectively, referred to as “forward-looking

information”). Generally, forward -looking information can be identified by the use of forward -

looking terminology such as “plans”, “expects” or “does not expect”, “is expected”, “budget”,

“scheduled”, “estimates”, “forec asts”, “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”. This forward -looking

information may relate to the Offering and the Concurrent Private Placement , including

statements with respect to the anticipated use of the net proceeds from the Offering, completion

of the Concurrent Private Placement ; and any other activities, events or developments that the

Company expects or anticipates will or may occur in the future.

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, IsoEnergy will complete the

Concurrent Private Placement in accordance with the terms and conditions of the relevant

agreements; the price of uranium; and that general business and economic conditions will not

change in a materially adverse manner. Although IsoEnergy 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 views of IsoEnergy with respect to future events and are

necessarily based upon a number of assumptions and estimates that, while considered

reasonable by IsoEnergy, are inherently subject to significant business, econ omic, competitive,

political and social risks, contingencies and uncertainties. Risks and uncertainties include, but are

not limited to the following: a material adverse change in the timing of and the terms and

conditions upon which the Concurrent Private Placement is completed; regulatory determinations

and delays; stock market conditions generally; demand, supply and pricing for uranium; and

general economic and political conditions in Canada, the United States and other jurisdictions

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where the applicable party conducts business. Other factors which could materially affect such

forward-looking information are described in the risk factors in IsoEnergy’s most recent annual

management’s discussion and analysis or annual information form a nd IsoEnergy’s other filings

with the Canadian securities regulators which are available under the Company’s profile on

SEDAR+ at www.sedarplus.ca. IsoEnergy does not undertake to update any forward -looking

information, except in accordance with applicable securities laws.