Arizona Sonoran, Nuton agree to commence discussions on option termination

Arizona Sonoran Copper Company (ASCUF) announces that, following preliminary consultation, the Company and Nuton, a Rio Tinto (RIO) Venture, have mutually agreed to commence discussions in January with respect to an amicable early termination of the option to joint venture agreement on the Cactus Project. The Company will continue to advance its Cactus Project on a standalone basis. Following from the recently completed positive standalone Pre-Feasibility Study, the Company will continue to progress the standalone Definitive Feasibility Study on the Cactus Project, targeted for completion in 2H 2026, with a view to an eventual final investment decision as early as 4Q 2026, alongside its ongoing advancement of related permitting amendments, project financing work, and various early development activities to be defined and actioned in the new year.