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Quantum Visits Babine Copper Projects, BC

Corporate Updates

PO BOX 31880

Steveston Village, BC, V7E 0B5, Canada

tel: 604.428.2900

[email protected]

www.quantumcriticalmetals.com

Quantum Visits Babine Copper Projects, BC

Vancouver, BC – August 20, 2025 – Quantum Critical Metals Corp. (TSX.V: LEAP | OTCQB: ATOXF | FSE:

86A1) ("Quantum" or the "Company") is pleased to announce that crews have been dispatched to

complete site visits on its Babine copper projects north of Smithers, B.C. The objectives for the site visits

are to establish access to the properties and to locate and verify previous Minfile showings while

continuing geological mapping and undertaking grab samples where possible on the claims.

Babine North

The Babine North property covers the historic Friday Red copper B.C. Minfile showing, which hosts

disseminated chalcopyrite within a unit of volcanic rocks. It is located 90 km east of Hazelton, B.C. The

geology consists of volcanic rocks interbedded with mudstones of the Lower Jurassic Telkwa Formation,

intruded by a highly magnetic feldspar porphyry dike.

Babine East

The Babine East package is situated along the western side of the northwest arm of Takla Lake and hosts

the Adda B.C. Minfile showing. Historical assays reported 5.49 g/t silver and 10.6% copper from veins of

chalcopyrite measuring 5–7.6 cm in width.

Babine South & Swift

The Babine South property covers the B.C. Minfile Bol showing on the north side of Babine Lake, where

historical sampling yielded silver values up to 2,790 g/t (99.6 oz/t). The geology is Cache Creek greenstone,

with mineralization occurring in quartz -carbonate veins and shears within foliated greenstone, hosting

galena, sphalerite, tetrahedrite, chalcopyrite, native silver, pyrrhotite, and pyrite.

The Babine Swift property covers 487 hectares and hosts a historic Minfile showing with several styles of

mineralization. Disseminated chalcopyrite and pyrite are hosted in andesite intermittently over 2 km.

Stringer quartz occurs with chalcopyrite, quartz -carbonate veins range from a few centimetres to 1.5

metres wide with hematite and trace chalcopyrite, and massive sulfide boulders are also present. Grab

samples returned 0.46–1.28% copper, 11.6–14.8 g/t silver, and 0.13–2.15 g/t gold.

Babine West

The Babine West property covers 2,300 hectares and borders the western side of American Eagle’s NAK

deposit (TSXV: AE) and Amarc Resources’ Duke Property (TSXV: AHR). Results from 2024 exploration on

this project were reported in a news release dated March 13, 2025.

Qualified Person

Melane Mackay, P.Geo., is the Qualified Person who has reviewed and approved the scientific and

technical disclosure in this news release.

CEO Marcy Kiesman stated, "Quantum continues to advance its portfolio of critical metal projects to

supply North America with critical minerals while developing opportunities for future joint ventures and

collaborations with other mining companies . Geological mapping and outcrop sampling are essential

early-stage exploration activities that set the stage for geophysics and drilling. We are eager to continue

advancing these projects with our excellent field team."

PO BOX 31880

Steveston Village, BC, V7E 0B5, Canada

tel: 604.428.2900

[email protected]

www.quantumcriticalmetals.com

About Quantum Critical Metals Corp.

Quantum Critical Metals Corp. (TSX.V: LEAP) (OTCQB: ATOXF) (F SE: 86A1) is a Canadian mineral

exploration company focused on advancing critical metals projects that power next -generation

technologies. With a growing portfolio of promising assets —including the NMX East Gallium -Rubidium-

Cesium Project in Québec, the Discovery Gallium-Rubidium-Cesium and polymetallic project in Qu ébec,

the Victory Antimony Project in British Columbia, and the newly acquired Prophecy Germanium-Gallium-

Zinc Project in British Columbia, among others, the Company is strategically positioned to support the

West’s transition to a secure and sustainable critical metals supply.

To stay updated on Quantum’s latest developments, sign up for our mailing list and visit

www.quantumcriticalmetals.com and www.sedarplus.com.

Marcy Kiesman, CEO

Telephone: 604.428.2900 or 604.339.2243

Email: [email protected]

Website: www.quantumcriticalmetals.com

Forward-Looking Statements

This news release contains “forward-looking information or statements” within the meaning of applicable

securities laws, which may include, without limitation, statements that address the upcoming work

programs, and other statements relating to the business, financial and technical prospects of the Company.

All statements in this news release, other than statements of historical facts that address events or

developments that the Company expects to occur, are forward-looking statements. Although the Company

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 the forward-looking statements.

Such forward-looking information reflects the Company’s views with respect to future events and is subject

to risks, uncertainties and assumptions, including those filed under the Company’s profile on SEDAR

at www.sedarplus.com. Factors that could cause actual results to differ materially from those in forward-

looking statements include, but are not limited to, continued availability of capital and financing and

general economic, market or business conditions. The Company does n ot undertake to update forward -

looking statements or forward-looking information, except as required by law.

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 release.