Mr. Giulio Bonifacio reports

ALTA COPPER RECEIVES COURT APPROVAL FOR PROPOSED ACQUISITION BY FORTESCUE

The Supreme Court of British Columbia has granted the final order in connection with the previously announced proposed acquisition by Nascent Exploration Pty. Ltd., a wholly owned subsidiary of Fortescue Ltd., of all of the issued and outstanding common shares of Alta Copper Corp. not already held by Nascent, by way of a court-approved plan of arrangement under the Business Corporations Act (British Columbia) and pursuant to the terms of an arrangement agreement dated Dec. 13, 2025.

The completion of the transaction remains subject to the Minister of Innovation, Science and Economic Development's consideration of the transaction under the Investment Canada Act (Canada) as described in the company's press release dated Jan. 22, 2026, and the satisfaction or waiver of any remaining conditions to closing the transaction.

For a more detailed description of the arrangement, including regulatory matters and approvals, please see the company's notice of meeting and management information circular dated Dec. 19, 2025, and press release dated Jan. 22, 2026, available under the company's profile on SEDAR+.

About Alta Copper Corp.

Alta Copper is focused on the development of its 100-per-cent-owned Canariaco advanced-staged copper project. Canariaco comprises 91 square kilometres of highly prospective land located 102 km northeast of the city of Chiclayo, Peru, which includes the Canariaco Norte deposit, the Canariaco Sur deposit and the Quebrada Verde prospect, all within a four-kilometre northeast-southwest trend in northern Peru's prolific mining district. Canariaco is one of the largest copper deposits in the Americas not held by a major.

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