Of the five known deposits at Capricorn Copper with three in production:
- Esperanza South (ESS), Mammoth and Greenstone. The other two deposits – Esperanza and Pluto – are planned to come into production from 2026.
Access to ESS and Mammoth is via two separate declines. Access to Greenstone is via an access drive from the Mammoth decline.
At Mammoth, the historical decline has been rehabilitated and extended to provide access to mining areas known as Mammoth Remnants and Mammoth Deeps, and a further access drive from the Mammoth decline is planned to access Esperanza and Pluto for mining in the future.
At ESS, Capricorn Copper has developed new mine infrastructure comprising the decline, ventilation rises, power supply network and groundwater pumping.
At Greenstone, a separate return air rise and emergency egress rise have been developed.
Mining in ESS applies sub-level caving. Mining at Mammoth and Greenstone applies long-hole open stoping with waste-rock or paste fill.
In the future, mining of Esperanza and Pluto will employ LHOS mining methods.
Ore is transported by truck to surface via the ESS and Mammoth declines (as applicable).
At Greenstone and Mammoth waste rock is partially used as backfill with surplus waste rock trucked to surface and deposited in the waste rock dump.
The Capricorn Copper operations team is responsible for operational management of the mi ........