File: '\\swfile\EmailIn\20250918 130643 Attachment 2025-09-18 ATOMIC Closes First Tranche Final.docx'

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For Immediate Release

PRESS RELEASE

September 18, 2025

Symbols: TSX-V: ATOM

FSE: DO80

OTCID: ATMMF

Atomic Minerals Closes First Tranche of Private Placement Units

Vancouver, British Columbia, September 18, 2025 - Atomic Minerals Corporation ("ATOMIC MINERALS" or the "Company") (TSX Venture: ATOM) (FSE: DO80) (OTCID: ATMMF) is pleased to announce that further to its September 5, 2025 news release, the Company has closed a first tranche of its Private Placement and will issue 2,500,000 Units at $0.05 per Unit for gross proceeds of $125,000 (the "First Tranche") subject to TSX Venture Exchange approval.

In addition, a total of 1,250,000 share purchase warrants with a one year term will be issued (each a "Warrant"). Each Warrant may be exercised into one common share at $0.10 per common share expiring on September 18, 2026. Pursuant to the applicable statutory hold period, all securities to be issued pursuant to this First Tranche may not be transferred or sold until January 19, 2026.

No finder's fees were paid on the First Tranche.

About the Company

Atomic Minerals Corporation. is a publicly listed exploration company on the TSX Venture Exchange, trading under the symbol ATOM led by a highly skilled management and technical team with a proven track record in the junior mining sector. Our objective at Atomic Minerals is to identify exploration opportunities in regions that have been previously overlooked but are geologically similar to those with previous uranium discoveries. These underexplored areas hold immense potential and are in stable geopolitical and economic environments.

Currently, our property portfolio contains Uranium projects with significant technical merit in two locations known for hosting Uranium production in the past. We have three on the Colorado Plateau, within the continental United States. The plateau has previously produced 597 million pounds of U3O8 The other recently acquired property is located in the prolific Athabasca region in Saskatchewan, Canada and the Mount Laurier property recently acquired is located in Quebec, Canada.

For additional information about the Company and its projects, please visit our website at www.atomicminerals.ca

ON BEHALF OF THE BOARD OF DIRECTORS

"Clive Massey"

Clive H. Massey

President & CEO

For further information, please contact:

info@atomicminerals.ca

(604) 341-6870 (office)

Neither TSX Venture Exchange nor their 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.

Forward-Looking Statements:

This news release contains certain statements that may be deemed "forward-looking" statements. Forward looking statements are statements that are not historical facts and are generally, but not always, identified by the words "expects", "plans", "anticipates", "believes", "intends", "estimates", "projects", "potential" and similar expressions, or that events or conditions "will", "would", "may", "could" or "should" occur. Although Atomic Minerals Corporation believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results may differ materially from those in forward looking statements. Forward-looking statements are based on the beliefs, estimates and opinions of Atomic Minerals Corporation management on the date the statements are made. Except as required by law, Atomic Minerals Corporation undertakes no obligation to update these forward-looking statements in the event that management's beliefs, estimates or opinions, or other factors, should change.