The PEA outlines primarily an underground block cave mining operation supplemented with a small open pit, and is planned to operate for 39 years with a peak mill feed production of 170,000 t/d, demonstrating that KSM has “multi-generational long-life” mining project potential with flexibility to vary metal output.
The recently updated PFS, meanwhile, contains only an open pit plan with a 33-year mine life limited to the Mitchell, East Mitchell and Sulphurets deposits. None of the mineral resources incorporated into the PEA were used in the PFS mine plan.
“KSM is really an entire district hosting a nest of potentially economic porphyry deposits with different characteristics. In our updated PFS we focused on the gold-rich deposits because of their faster payback and the relative simplicity of an open-pit only operation,” Seabridge CEO Rudi Fronk said in a media statement. “However, we are very mindful that a deep deficit…
