The Johnson Camp Mine contains two open pit mines, the Burro pit and the Copper Chief pit. Mining by a former owner, Nord Resources Corporation (Nord), ceased in 2012. The Project’s goal is to supplement mining and heap leaching at Excelsior’s Johnson Camp Mine using conventional heap leaching and processing at the JCM solvent extraction-electrowinning (SX-EW) plant that is fully operational.
To restart the Johnson Camp Mine for heap leaching, two developments need to take place simultaneously: prestripping and mine development, and the construction of a new heap leach pad, Pad 5.
On January 16, 2023, the Company announced a Collaboration Agreement with Nuton LLC, a Rio Tinto venture, to evaluate the use of its Nuton™ copper heap leaching technologies at JCM. |