Ms. Marcy Kiesman reports

QUANTUM COMPLETES SECOND AIRBORNE SURVEY AT NMX EAST PROJECT IN QUEBEC

Further to the news of Sept. 22, 2025, Quantum Critical Metals Corp. has completed a MAG-TDEM (magnetic-time domain electromagnetic) airborne survey on its wholly owned NMX East property in Northern Quebec.

During September, Quantum completed two airborne surveys at NMX East:

1. An electromagnetic very low frequency electromagnetic and magnetic geophysical survey to validate historical government data and enhance geological targeting; followed by:
2. A MAG-TDEM airborne survey to obtain additional high-resolution data to allow a better definition of EM anomalies for improved design of drill targets aimed at nickel-platinum-group-element mineralization, similar to that of neighbouring Power Metallic Mines.

The magnetic anomaly from the first airborne survey prompted Quantum to undergo an immediate follow-up investigation, requiring a second airborne survey. The second TDEM system survey detected good-quality bedrock conductors at greater depth than was previously possible with the VLF-EM technology.

Nickel and PGE are commonly searched for with airborne and magnetic surveys to help locate the rock types of interest (Vallee et al., 2024).

The NMX East property is located in a James Bay region of Quebec, which has a known source of lithium, nickel and platinum group elements.

Next steps: drill permits

Quantum is in the midst of planning detailed drill targets for the NMX East and intends to apply for drill permits in the coming weeks.

Chief executive officer Marcy Kiesman stated: "It is encouraging for shareholders that a magnetic anomaly on the NMX East property is similar in amplitude, strike, shape and size to the anomaly found at the neighbouring Nisk deposit. With the significant amount of activity undertaken in the surrounding James Bay area this season, we look forward to continuing to provide our shareholders with further updates in the weeks and months to come."

Qualified person

Joel Dube, PEng, an independent professional of Dynamic Discovery Geoscience consulting for the company, is the qualified person who has reviewed and approved the scientific and technical disclosure in this news release.

About Quantum Critical Metals Corp.

Quantum Critical is a Canadian mineral exploration company focused on advancing critical metal projects that power next-generation technologies. With a growing portfolio of promising assets, including the NMX East gallium-rubidium-cesium project in Quebec, the Discovery gallium-rubidium-cesium and polymetallic project in Quebec, 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 metal supply.

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