Sixty North Gold places order for 100 tpd mill for Mon

Executive Summary

• Sixty North Gold Mining Ltd. has placed an order for a complete 100-tonne-per-day (TPD) crush-grind-gravity-flotation-thicken-and-filter tailings mill for its wholly-owned Mon gold mine.
• The mill is scheduled for delivery to the site via winter road in early 2026, marking the first new gold mill installation on the Yellowknife greenstone belt in over 80 years.
• Recent exploration and development activities have successfully reopened underground workings, extended the main production ramp to the second level, and identified new stope potential in the A-Zone and DD Zone.

Key Details

• Mill Specifications: The order is for a complete 100 TPD mill including crushing, grinding, gravity separation, flotation, thickening, and filter tailings processing.
• Delivery Timeline: Delivery is expected in early 2026 via the winter road to the Mon gold mine site.
• Historical Context: This will be the only permitted and operating gold mine in the Northwest Territories (NWT) and the first new gold mill on the Yellowknife greenstone belt in over 80 years (excluding the 100 TPD mill operated by current management in the 1990s).
• Underground Development:
  • The North ramp has been reopened and extended to the target portion of the vein.
  • The main production ramp has been extended to the second level of the mine.
  • Crosscuts have intersected the A-Zone 17 meters below the historic stopes in both the east and west limbs.
  • This intersection allows for the development of north and south stopes on each limb, creating four working areas.
• Future Development Plans:
  • Development of the main ramp to a third level is planned to continue.
  • The newly discovered DD Zone will be assessed to determine if it supports stope development.
• Historical Production: The Mon mine previously extracted 15,000 tonnes of ore to depths of 15 meters below surface in the 1990s, recovering an estimated 15,000 ounces of gold.
• Regional Context: The Yellowknife gold camp includes the Discovery Mine (1 million ounces produced, averaging >30 g/t Au), the Mon Mine (averaging >30 g/t Au), and the Con and Giant mines (averaging >15 g/t Au, total production >14 million ounces).

Notable Quotes

• "This mill will be the first gold mill to be installed on the Yellowknife greenstone belt in over 80 years, other than the 100 tpd mill the current company management ran in the 1990s at this mine site. This will be the only permitted and operating gold mine in the NWT. We are pleased to be bringing gold mining back to Yellowknife by reactivating this historic past producer, which is expected to bring benefits to the territories, suppliers, first nations, workers and the regional community." — Dr. Dave Webb, President and CEO