05/07/2026
A 22.8% post-tax IRR is rare in mining.
For perspective: most large-scale mining projects target IRRs in the 12-18% range to clear hurdle rates. Above 20% is unusual. Above 25% usually means a small, short-life project, not a 42-year operation.
Surge's 2025 Preliminary Economic Assessment shows Nevada North Lithium Project running a 22.8% post-tax IRR at base-case pricing of US$24,000 per tonne LCE.
How does it stack up against peers in the same category?
Per published technical reports for advanced U.S. lithium clay projects:
β Nevada North (Surge): 22.8% IRR (PEA, 2025)
β Thacker Pass (Lithium Americas): 20% IRR (FS, 2025)
β McDermitt (Jindalee): 18% IRR (PFS, 2024)
β Angel Island (Century Lithium): 17% IRR (FS, 2024)
β Rhyolite Ridge (Ioneer): 18% IRR (FS, 2025)
The drivers behind the higher IRR are visible in the inputs. Average mined grade of 4,016 ppm Li over a 42-year life. OPEX of $5,243 per tonne LCE. A 4.6-year payback period. A strip ratio of 1.16:1.
The Pre-Feasibility Study being prepared by Fluor will pressure-test these numbers. But the underlying drivers, the grade and the geology, are in the ground today.
Surge Battery Metals (TSXV: NILI Β· OTCQX: NILIF Β· FSE: DJ5)