

Internationally respected geochemist to lead the Company's technical strategy and newly established International Technical Advisory Council as Quantum advances innovative critical minerals processing technologies toward pilot-scale validation and commercialization. Vancouver, British Columbia – TheNewswire - July 20, 2026 – Quantum Critical Metals Corp. (TSXV: LEAP) (OTCQB: ATOXF) (FSE: 96A1) ("Quantum" or the "Company") is pleased to announce the appointment of internationally recognized geochemist Dr. Rob Bowell, Ph.D. , to its Board of Directors. Dr. Bowell has also entered into an agreement with the Company as its Lead Technical Advisor and will serve as Chair of Quantum's newly established International Technical Advisory Council ("ITAC") .

Veteran critical minerals industry advocate, media executive, and entrepreneur brings more than three decades of experience in publishing, communications, and sector development. VANCOUVER, British Columbia – TheNewswire - June 25, 2026 – Quantum Critical Metals Corp. (TSXV: LEAP | OTCQB: ATOXF | FSE: 86A1) ("Quantum" or the "Company") is pleased to announce the appointment of Tracy Hughes to its Board of Directors, effective immediately.

Zinc Assays Return up to 22,000ppm Vancouver, BC – TheNewswire - May 28, 2026 – Quantum Critical Metals Corp. (TSX.V: LEAP | OTCQB: ATOXF | FSE: 86A1 ) (“Quantum” or the “Company”) is pleased to report the assay results of a site visit undertaken by the Quantum exploration team on its wholly owned Prophecy zinc prospect.

Company advances refining-focused strategy to deliver domestically sourced, high-value critical minerals amid growing geopolitical supply chain uncertainty Vancouver, BC – TheNewswire - May 26, 2026 – Quantum Critical Metals Corp. (TSX.V: LEAP | OTCQB: ATOXF | FSE: 86A1 ) (“Quantum” or the “Company”) is pleased to announce the initiation of advanced metallurgical test work targeting rubidium recovery from its NMX East Rubidium-Gallium-Cesium Critical Minerals Project located in Québec .

Quantum Positioning Québec Critical Minerals for European Investment, Offtake, and Strategic Partnerships Vancouver, BC – TheNewswire - May 1 9 , 2026 – Quantum Critical Metals Corp. (TSX.V: LEAP | OTCQB: ATOXF | FSE: 86A1 ) (“Quantum” or the “Company”) is pleased to highlight its recent acceptance into the European Union's Raw Materials Mechanism under the EU Energy and Raw Materials Platform , positioning the Company to engage with European investors, industrial partners, and potential offtake counterparties amid increasing focus on securing resilient critical minerals supply chains.

Quantum to Engage Global Industry Leaders on Securing Critical Mineral Supply Chains Vancouver, BC – TheNewswire - May 11, 2026 – Quantum Critical Metals Corp. (“Quantum” or the “Company”) (TSX.V: LEAP) (OTCQB: ATOXF) (FSE: 86A1) is pleased to announce its participation in the upcoming CMI Summit 5 — “The New Critical Minerals Economy” — taking place May 13–14, 2026, in Toronto, Canada.

Advancing Critical Mineral Exploration in North America Vancouver, BC – TheNewswire - April 2, 2026 – Quantum Critical Metals Corp. (TSX.V: LEAP | OTCQB: ATOXF | FSE: 86A1 ) (“ Quantum ” or the “ Company ”) is pleased to announce that is has received approval from Ministère des Ressources naturelles et des Forêts for a drilling permit authorizing up to 121 diamond drill holes at its NMX East property, located in the James Bay - Eeyou Istchee region of northern Qu é bec.

DIBC Membership Marks Strategic Milestone for Quantum Vancouver, BC – TheNewswire - March 20, 2026 – Quantum Critical Metals Corp. (TSX.V: LEAP | OTCQB: ATOXF | FSE: 86A1 ) (“ Quantum ” or the “ Company ”) is pleased to announce that is has been accepted into the United States Defence Industrial Base Consortium (“ DIBC ”), marking another strategic milestone for the Company.
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