Moon River files technical report on Endako restart

Executive Summary

• Moon River Moly Ltd. has filed an independent National Instrument 43-101 technical report for the Endako Mine Restart Preliminary Economic Assessment (PEA).
• The PEA examines the potential restart of operations at the Endako mine complex in British Columbia, which is currently on care and maintenance.
• The report confirms no material differences from the disclosure previously made in the company's news release dated November 21, 2025.

Key Details

• Report Title: National Instrument 43-101 technical report for the Endako mine restart preliminary economic assessment (PEA).
• Filing Date: January 5, 2026.
• Effective Date: November 21, 2025.
• Qualified Person (QP): Brian LeBlanc, PEng, President of A-Z Mining Professionals Ltd. (AMPL).
• Asset Details: The Endako mine complex is located approximately 190 kilometres west of Prince George, B.C., and comprises an open-pit molybdenum mine, concentrator, and roaster.
• Ownership Structure:
  • Moon River Moly Ltd. holds a 25% indirect interest.
  • Centerra Gold Inc. holds a 75% interest.
  • The mine operates through a joint venture company.
• Acquisition History: Moon River completed the indirect acquisition of its 25% interest from Sojitz Corp. on May 30, 2024.
• Centerra Involvement: Centerra Gold Inc. is aware of the PEA preparation but has neither participated in nor endorsed the work.
• Availability: The report is available under the company's profile on SEDAR+ and on the company's website.

Notable Quotes

• "There are no material differences in the Endako mine restart technical report from the disclosure in the company's news release dated Nov. 21, 2025."