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Critical One Signs Definitive Agreement for Uranium Properties

Mergers & Acquisitions

Critical One Signs Definitive Agreement for Uranium Properties

Toronto, ON – August 7, 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 the Company’s uranium asset sale to Dark Star Minerals Inc. (“Dark Star”) (CSE:

BATT) (FSE: P0W), as announced on June 12, 2025, has closed.

Under the terms of the definitive agreement (“D A”), Dark Star will proceed with the second

payment of US$150,000 in cash and issue 14,000,000 common shares (“Dark Star Shares”) to

Critical One. Per terms of the D A, Dark Star will make further cash and share payment s as per

the following schedule to earn 100% of Critical One’s interest in the Khan and Cobra Uranium

Projects located in Namibia, Africa.

Payment Date Cash Payment Securities Issuance

On the date of execution of the letters

of intent agreement (the “LOI

Execution Date”)

US$10,000

(paid) -

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

five (5) days of the LOI Execution

Date; or (b) receipt of Exchange

approval for the LOI

- 200,000

Dark Star Shares (issued)

Upon the execution of the DA

(the “DA Execution Date”) US$150,000 14,000,000

Dark Star Shares

On or before the date that is four (4)

months from the DA Execution Date US$100,000 -

On or before the first anniversary of

the DA Execution Date US$250,000 US$1,000,000

in Dark Star Shares

On or before the second anniversary

of the DA 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, Critical

One will be granted a 2% gross overriding royalty (“Royalty”) on all metals produced from the two

uranium projects. Dark Star can buy back 0.5% of either Royalty for US$1.5 million within 30 days

of the commencement of production from said uranium project(s).

“We are looking forward to working with Dark Star to accelerate the exploration and development

of these two significant uranium projects in the world’s third-largest uranium-producing country,

according to the World Nuclear Association,” said Duane Parnham, Founder, Executive Chairman

and CEO of Critical One. “As a significant shareholder and director of Dark Star, I will continue to

contribute to the development of these two exciting uranium projects.”

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 C ompany’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 m ine 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 gram matical variations

thereof, or statements that certain events or conditions “may” 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 the 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 ord er 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.