Nano One Files Prospectus Supplement for Canadian Offering

On December 8, 2025, Nano One Materials Corp. announced the filing of a prospectus supplement related to its previously announced overnight marketed underwritten offering. The supplement, dated the same day, accompanies the company's short form base shelf prospectus from April 26, 2024. The filing was made in all Canadian provinces except Québec, qualifying the distribution of 4,650,000 units at C$1.40 per unit, with potential for an additional 697,500 units through an over-allotment option. The closing of this offering is expected around December 10, 2025, pending regulatory approvals.

This initiative aligns with Nano One’s strategic growth plans, relying on secured access and delivery protocols outlined by applicable securities legislation. The detailed documents are available for public access through SEDAR+, ensuring transparency and compliance with regulatory requirements. Notably, the offering is not intended for distribution in the United States.