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Critical One Makes Strategic Uranium Asset Divestment

Mergers & Acquisitions

Critical One Makes Strategic Uranium Asset Divestment

Toronto, ON – June 12, 2025 – Critical One Energy Inc. (formerly Madison Metals Inc.)

(“Critical One” or the “Company”) (CSE: CRTL) (OTCQB: MMTLF) (FSE: 4EF0) is pleased to

announce that Dark Star Minerals Inc. (“Dark Star”) (CSE: BATT) (FSE: P0W), a well-managed,

uranium-focused, publicly-listed company, has entered into an acquisition agreement with Critical

One to acquire 100% of its interests in the Khan and Cobra Uranium Projects, located in Namibia’s

highly prospective Erongo uranium province.

“Divesting the Company’s uranium assets and focusing on the Howells Lake Antimony -Gold

Project (“Howells Lake Project”) enhances our shareholder value by strategically refining the

Company’s critical metals and minerals mission,” said Duane Parnham, Executive Chairman and

CEO of Critical One. “ I believe this shift in our critical metals strategy aligns with global market

trends driven by the energy transition, and will offer higher growth potential and improved returns.

Howell Lake’s antimony deposits allow us to capitalize on the rapidly growing demand for these

critical metals. Plus, the project provides gold exploration upside in a period when the yellow

metal’s value is reaching all-time market highs.”

Parnham added, “By forming this alliance with Dark Star, our investment in uranium continues to

have great potential. This divestiture allows Critical One to focus on its capital allocation on high-

margin, high-demand critical minerals, thereby optimizing our portfolio for long-term profitability,

reducing exposure to market risks, and strengthening our competitive position in a future-focused

industry, ultimately driving sustainable value creation for shareholders.”

Under the terms of the letters of intent agreement (“LOI”), Dark Star has the opportunity to acquire

all of Critical One’s interest in the Khan and Cobra Uranium Project s through staged cash

payments and issuances of common shares to the Company over a two-year period. No fairness

opinion or independent valuation of the uranium assets was sought by Critical One or Dark Star

for this agreement.

A summary of terms for the LOI is provided below , concurrently issued in the Dark Star news

release dated June 12, 2025.

Payment Date Cash Payment

Amount Securities Issuance

On the date of execution of this LOI

(the “LOI Execution Date”) US$10,000 -

Upon the later of: (a) the date that is

five days of the LOI Execution Date;

and (b) receipt of Exchange approval

for the LOI

- 200,000 common shares

(each, a “Share”) of Dark Star

Upon the execution of the Definitive

Agreement (the “Definitive

Agreement Execution Date”)

US$150,000 14,000,000 Dark Star Shares

On or before the date that is four (4)

months from the Definitive

Agreement Execution Date

US$100,000 -

On or before first anniversary of the

Definitive Agreement Execution Date US$250,000 US$1,000,000 in Dark Star

Shares

On or before second anniversary of

the Definitive Agreement Execution

Date

US$250,000 US$750,000 in Dark Star

Shares

Total: US$760,000

Once the staged cash and share issuances reach a combined value above US$3.5 million (as

outlined in the table), Critical One will be granted a 2% gross overriding royalty on all metals

produced from the two uranium projects.

Upon signing of the LOI, Critical One received US$10,000 in cash and was issued 200,000

common shares of Dark Star, priced at CDN$0.075 at close of business on June 11, 2025. This

will be followed by subsequent cash and common share payments in accordance with a definitive

agreement to be signed within 60 days. The definitive agreement will be subject to the approval

of the usual regulatory approvals.

About Critical One Energy Inc.

Critical One Energy Inc. (formerly Madison Metals Inc.) is a forward-focused critical minerals and

upstream energy company, powering the future of clean energy and advanced technologies. The

addition of the Howells Lake Antimony-Gold Project broadens the Company’s exposure to

antimony, one of the most in -demand critical minerals. Backed by seasoned management

expertise and prime resource assets, Critical One is strategically positioned to meet the rising

global demand for critical minerals and metals. Its mine exploration portfolio is led by antimony -

gold exploration potential in Canada and uranium investment interests in Namibia, Africa. By

leveraging its technical, managerial, and financial expertise, the Company upgrades and creates

high-value projects, thereby driving growth and delivering value to its shareholders.

Additional information about Critical One Energy Inc. can be found at criticaloneenergy.com and

on the Company’s SEDAR+ profile at www.sedarplus.ca.

For further information, please contact:

Duane Parnham

Executive Chairman & CEO

Critical One Energy Inc.

+1 (416) 489-0092

[email protected]

Media inquiries:

Adam Bello

Manager, Media & Analyst Relations

Primoris Group Inc.

+1 (416) 489-0092

[email protected]

Neither the Canadian Securities Exchange nor CIRO accepts responsibility for the adequacy or

accuracy of this release.

Forward-looking Statements

This news release contains “forward-looking information” within the meaning of applicable securities laws. All statements contained

herein that are not clearly historical in nature may constitute forward-looking information. In some cases, forward-looking information

can be identified by words or phrases such as “may”, “will”, “expect”, “likely”, “should”, “would”, “plan”, “anticipate”, “intend”, “potential”,

“proposed”, “estimate”, “believe” or the negative of these terms, or other similar words, expressions, and grammatical variat ions

thereof, or statements that certain events or conditions “m ay” or “will” happen, or by discussions of strategy. Forward -looking

information contained in this press release includes, but is not limited to, statements relating to the terms and timing of t he private

placement described in this press release and the anticipated uses of the proceeds raised from such private placement.

Where the Company expresses or implies an expectation or belief as to future events or results, such expectation or belief is based

on assumptions made in good faith and believed to have a reasonable basis. Such assumptions include, without limitation, tha t: the

Company will receive all necessary approval required in order to complete the issuance of the securities pursuant to the priv ate

placement described in in this press release; and that there will be sufficient interest from potential investors in order to complete the

private placement on the terms as described herein or at all.

However, forward-looking statements are subject to risks, uncertainties, and other factors, which could cause actual results to differ

materially from future results expressed, projected, or implied by such forward -looking statements. Such risks include, b ut are not

limited to, the risk that the Company will not be able to proceed with the issuance of units on the terms described in this press release

or at all.

Accordingly, undue reliance should not be placed on forward-looking statements and the forward-looking statements contained in this

press release are expressly qualified in their entirety by this cautionary statement. The forward -looking statements contained herein

are made as at the date hereof and are based on the beliefs, estimates, expectations, and opinions of management on such date .

The Company does not undertake any obligation to update publicly or revise any such forward -looking statements or any f orward-

looking statements contained in any other documents whether as a result of new information, future events or otherwise or to explain

any material difference between subsequent actual events and such forward-looking information, except as required under applicable

securities law. Readers are cautioned to consider these and other factors, uncertainties, and potential events carefully and not to put

undue reliance on forward-looking information.