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Green Canada Uranium Commences Drilling on Marshall Project, Athabasca Basin

Exploration Programs

Green Canada Uranium Commences Drilling

on Marshall Project, Athabasca Basin

Toronto, Ontario--(Newsfile Corp. - September 16, 2026) -

Green Canada Uranium Corp. (TSXV:

GCUC) (the "Company")

is pleased to announce that it has commenced drilling on its 100% owned

Marshall property, located in the eastern Athabasca Basin, Saskatchewan. The Marshall project is

located 30 kilometres on trend to the southwest of Canalaska's West McArthur Pike Zone discovery.

Marshall is in the vicinity of several large uranium deposits and processing facilities including Cameco's

McArthur River mine, Key Lake Mill and Millennium deposit and Denison's Phoenix ISR and Gryphon

underground development project.

Two drill holes are planned to test electromagnetic targets at the sandstone/basement unconformity,

interpreted at 725 metres. MRL-001 is targeting two strong electromagnetic (EM) picks that align to the

southeast of a circular conductivity anomaly. The second priority target is located northwest of the same

circular conductivity anomaly.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/12120/314536_37cb861ad490cb22_001full.jpg

About Green Canada Uranium Corp.

Green Canada Uranium Corp. is a mineral resource company engaged in the acquisition, exploration

and development of uranium properties in Canada. The Company holds a portfolio of uranium properties

in the Athabasca Basin in Saskatchewan and the Otish Basin in Quebec, including the flagship 100%

owned Marshall Project in the eastern Athabasca Basin, Saskatchewan.

On Behalf of the Board of Directors

Greg Ferron,

CEO & Director

For more information, please contact:

Richard J. Mazur, Executive Chairman

Email:

[email protected]

|

Tel: (778) 772-3100

Neither 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

press release.

Disclosure Regarding Forward-Looking Statements

This news 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 "does 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" occur or be achieved. This forward-looking information includes, without

limitation, statements regarding the Company's planned exploration activities at the Marshall project, and

the anticipated or potential results thereof.

Such forward-looking information is necessarily based on a number of assumptions that, while

considered reasonable by management as at the date of this news release, are inherently subject to

business, market and other risks, uncertainties and contingencies that may cause actual results,

performance or achievements to be materially different from those expressed or implied by such

forward-looking information. Such assumptions include, but are not limited to, that planned exploration

activities are completed as anticipated and within the expected timeframe; that the Company's

interpretation of its geophysical data is accurate; and general business, economic, competitive, political

and social conditions. Material risk factors include that drilling may be delayed or altered, that drill results

may not be consistent with the Company's expectations or the presence of geophysical targets, and that

any mineralization encountered may not be economic. Readers should not place undue reliance on

forward-looking information.

The forward-looking information contained in this news release is made as of the date of this news

release. The Company does not undertake to update this forward-looking information except as required

under section 5.8 of National Instrument 51-102 -

Continuous Disclosure Obligations

, or as otherwise

required by applicable securities legislation.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/314536