Moon River Moly files Technical Report for Endako Mine restart Preliminary Economic Assessment

Moon River Moly Ltd. [TSXV: MOO; OTCQB: MRIVF] has filed an independent technical report entitled the NI 43-101 Technical Report for the Endako Mine Restart Preliminary Economic Assessment (PEA) (the “Endako Mine Restart Technical Report”) dated January 5, 2026 with an effective date of November 21, 2025.

The Endako mine complex in British Columbia, currently on care and maintenance, is comprised of an open-pit molybdenum mine, concentrator, and roaster, located approximately 190 km west of Prince George, central British Columbia. The PEA examines the potential restart of operations at the Endako Mine.

On May 30, 2024, Moon River completed the indirect acquisition of a 25% interest in the Endako Mine from Sojitz Corporation, a Japanese multi-national company. The Endako Mine is jointly owned by Moon River (25%) and Centerra Gold Inc. [TSX: CG; NYSE: CGAU] (75%) and operates through a joint venture company. While Centerra is aware that this PEA was being prepared for Moon River, it has neither participated in nor endorsed the work. The report was prepared by A-Z Mining Professionals Ltd.

Moon River is focused on the development of the Davidson Property which hosts a large molybdenum-tungsten deposit and is located near Smithers, British Columbia. The company also holds 25% of one of the largest molybdenum mines in North America, the Endako Mine Complex also located in British Columbia.