Macmillan Pass

JDS managed the Preliminary Economic Assessment and NI 43-101 report for Fireweed's Macmillan Pass Project. The scope included geotechnical analysis, open pit and underground mine design and planning, metallurgical test program management, process plant and infrastructure design, and complete CAPEX/OPEX estimation. The PEA outlined combined open pit and underground mining of 32.7Mt at 4,900 tpd over an 18-year mine life. Economic highlights: after-tax NPV8% of $448M, 23.5% IRR, and 4.0-year payback.