Mr. Paul Guedes reports

NANO ONE MATERIALS CORP. ANNOUNCES OVERNIGHT MARKETED OFFERING

Nano One Materials Corp. has launched a commercially reasonable effort overnight marketed underwritten offering of units of the company.

The offering is expected to be completed pursuant to an underwriting agreement to be entered into among the company, Canaccord Genuity Corp. as lead underwriter and sole bookrunner, and a syndicate of underwriters. The company has agreed to grant to the underwriters an overallotment option exercisable, in whole or in part, in the sole discretion of the lead underwriter, to purchase up to an additional 15 per cent of the number of units sold in the offering for up to 30 days from the closing date of the offering. The overallotment option is exercisable to acquire units, unit shares and/or warrants (or any combination thereof) at the discretion of the lead underwriter.

The size of the offering, the offering price of the units and the terms of the units will be determined in the context of the market at the time of entering into the underwriting agreement, and there can be no assurance as to completion of the offering. The closing of the offering is expected to occur on or about Dec. 10, 2025, and will be subject to market and other customary closing conditions.

The net proceeds of the offering are expected to be used for business development activities, expansion of the company's Candiac facility, working capital and general corporate purposes.

The offering will be conducted by way of a prospectus supplement to the company's base shelf prospectus dated April 26, 2024, to be filed in each of the provinces of Canada, except Quebec, and the units may be also offered in the United States on a private placement basis pursuant to exemptions from the registration requirements of the U.S. Securities Act of 1933, as amended, subject to receipt of all necessary regulatory approvals, including the approval of the Toronto Stock Exchange, and in those other jurisdictions outside of Canada and the United States, provided that no prospectus filing or comparable obligation arises in such other jurisdiction.

The base shelf prospectus is available under the company's profile on SEDAR+, and, upon determination of the size and pricing of the offering and the signing of the underwriting agreement, the prospectus supplement will be filed and available on SEDAR+. Alternatively, the prospectus supplement and accompanying base shelf prospectus may be obtained free of charge and upon request by contacting the company by e-mail at info@nanoOne.ca.

About Nano One Materials Corp.

Nano One is a technology company changing how the world makes cathode active materials for lithium-ion batteries. Applications include stationary energy storage systems, portable electronics and electric vehicles. The company's patented One-Pot process reduces costs, is easier to permit, and lowers energy intensity, environmental footprint and reliance on problematic supply chains. The company is supporting the drive toward energy security, supply chain resilience, industrial competitiveness and increased performance through process innovation. Production is being piloted and demonstrated in Candiac, Que., drawing on the existing plant and decades of commercial lithium-iron-phosphate manufacturing experience. Strategic collaborations and partnerships with international companies like Sumitomo Metal Mining, Rio Tinto and Worley are supporting a design-one-build-many licensing growth strategy -- delivering cost-competitive, easier-to-permit and faster-to-market battery material production solutions worldwide. Nano One has received funding from the government of Canada, the government of the United States, the government of Quebec and the government of British Columbia.

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