The western section of the Kakula mine is expected to resume production by month-end

The engineering team at Kamoa Copper is updating the short-, medium-, and long-term plans for resuming operations in the eastern and western sections of the Kakula Mine.It is expected that underground mining operations in the western section of the Kakula Mine will resume in late June, subject to the progress of dewatering efforts. The western section of the Kakula Mine has not been flooded and has a dewatering capacity of 1,000 litres per second.

It is anticipated that operations in the eastern section of the Kakula Mine will resume after the completion of dewatering efforts. Kamoa Copper has implemented a phased approach to conduct dewatering operations throughout the Kakula Mine:

Phase 1: Install temporary dewatering equipment underground to maintain the current water level.Phase 1 was completed today, with the total dewatering capacity increased to approximately 4,400 litres per second, which is sufficient to manage the inflow of groundwater.

Phase 2: Install large-power pumps and a permanent dewatering system that can be operated from the surface to conduct comprehensive dewatering operations throughout the Kakula Mine.Phase 2 has already commenced. Kamoa Copper has ordered four large-power dewatering units, each with a dewatering flow rate of 650 litres per second. Additional dewatering units will also be ordered under the long-term infrastructure plan, which will be deployed in pairs and installed in existing ventilation shafts that extend deep into the catchment area of the Kakula Mine. It is expected that the surface dewatering system will be delivered and installed within 90 days.

Meanwhile, the Phase 1 and Phase 2 beneficiation plants continue to operate at approximately 50% of their combined capacity, processing ore from surface stockpiles.Once underground operations resume, ore from the western section of the Kakula Mine will be processed immediately.

Since mining commenced at the Kakula Mine in 2021, the mining team has completed more than 18 months of development ahead of the mining schedule. The excess development work has provided significant flexibility for the underground mining team to re-enter multiple mining areas when environmental safety is confirmed.

Mining activities at the Kamoa underground mine and the adjacent Phase 3 beneficiation plant continue to operate normally and have not been affected.