Battery Mineral Resources Corp. (TSX-V: BMR) (OTCQB: BTRMF) is pleased to announce that it has closed the final tranche of its non-brokered private placement offering, which was originally announced on April 15, 2026. Under this final tranche, the Company issued 8,542,030 common shares of the Company at a price of $0.20 per Share for aggregate gross proceeds of $1,708,406. The Company previously announced the closing of the first tranche of the Offering on April 22, 2026, for aggregate gross proceeds of $451,647 and the closing of the second tranche on May 7, 2026 for aggregate gross proceeds of $600,000. The Company has now raised aggregate gross proceeds of $2,760,053 through the sale of an aggregate of 13,800,265 Shares under the Offering.

The Shares have been issued on a private placement basis pursuant to the Listed Issuer Financing Exemption under Part 5A of National Instrument 45-106 – Prospectus Exemptions, as amended and supplemented by Coordinated Blanket Order 45-935 – Exemptions from Certain Conditions of the Listed Issuer Financing Exemption. Accordingly, the Shares issued in the Offering are not subject to resale restrictions pursuant to applicable Canadian securities laws.

The Offering was also conducted in the United States by way of private placement pursuant to the exemptions from the registration requirements provided for under the United States Securities Act of 1933, as amended (the “U.S. Securities Act“), in accordance with all applicable laws. The Shares offered and sold to persons in the United States are considered restricted securities under the U.S. Securities Act.

The Company intends to use the net proceeds of the Offering to advance processing plant operations and planned underground development at the Company’s Punitaqui Mining Complex located in the Coquimbo region of Chile, and for general working capital purposes. Details of the Company’s intended use of proceeds from the Offering are more fully described in the offering document dated April 15, 2026 that can be accessed under the Company’s profile at www.sedarplus.ca.

In connection with the closing of the final tranche of the Offering, the Company paid an arm’s length party finder’s fees in the amount of $78,024 in compliance with applicable securities laws and TSX Venture Exchange policies.

The securities being offered have not been and will not be registered under the U.S. Securities Act and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements. This press release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any State in which such offer, solicitation or sale would be unlawful.

About Battery Mineral Resources Corp.

Battery Mineral Resources operates the Punitaqui Mining Complex, a historic copper, gold, and silver-producing mine in the Coquimbo region of Chile. The Company’s portfolio also includes 100%-owned ESI Energy Services Inc. and North American mineral exploration assets. The Company is focused on providing shareholders with accretive exposure to copper and the global trend of electrification while targeting growth through cash flow, exploration and acquisitions in favorable mining jurisdictions.