Whistler Gold-Copper Project PEA: $2.00B NPV, 33% IRR
U.S. GoldMining Inc.'s Whistler Gold-Copper Project in Alaska, USA (105 miles NW of Anchorage) has a Preliminary Economic Assessment (PEA) outlining an after-tax NPV of $2.00B, an after-tax IRR of 33%, and initial capital of $1.30B. The mine plan runs 14.6 years at about 183 koz Au per year.
U.S. GoldMining Inc.'s Whistler Gold-Copper Project has reported Preliminary Economic Assessment (PEA) results for the gold, copper, silver project in Alaska, USA (105 miles NW of Anchorage). The study headlines an after-tax net present value of $2.00B at a 5% discount rate. It reflects U.S. GoldMining Inc.'s (USGO) latest disclosed economics for the asset.
Economics. The after-tax NPV is $2.00B using a 5% discount rate. After-tax IRR is 33%. Initial capital expenditure is estimated at $1.30B. The study models a payback period of 2.1 years. All-in sustaining costs are pegged at 1046 USD/oz Au. Economics are based on Consensus: $3,200/oz Au, $4.50/lb Cu, $37.50/oz Ag; Spot: $5,000/oz Au, $5.85/lb Cu, $70/oz Ag.
Production and mine plan. The project envisions an open-pit operation. Life of mine is 14.6 years. Average annual production is approximately 183 koz Au. Average head grade is Indicated: 0.41 g/t Au, 1.90 g/t Ag, 0.15% Cu; 0.56 g/t AuEq. Metallurgical recovery averages 88.9%. The open-pit strip ratio is 1.5:1 Y1–3.
Resources and ownership. The company holds a 100% interest in the project. Royalties and streams: 3% NSR.
These figures are extracted from U.S. GoldMining Inc.'s technical disclosures and reflect the most recent PEA on file. Compare this project against other developers and producers in our project economics database, and always verify the numbers against the original technical report before making any investment decision.
Reserves & Resources
| Category | Tonnage | Grade | Contained |
|---|---|---|---|
| Indicated | 299.2 Mt | 0.41 g/t Au, 1.90 g/t Ag, 0.15% Cu, 0.56 g/t AuEq | 3.97 Moz Au, 17.92 Moz Ag, 992 Mlbs Cu, 5.41 Moz AuEq |
| Inferred | 290.8 Mt | 0.47 g/t Au, 1.60 g/t Ag, 0.06% Cu, 0.54 g/t AuEq | 4.36 Moz Au, 14.26 Moz Ag, 390 Mlbs Cu, 4.97 Moz AuEq |
Our Analysis
The 33% after-tax IRR ranks in the upper quartile of tracked peers and clears the practical financing hurdle for a single-asset junior developer by a wide margin, which is the relevant test. The 5% discount rate is at the low end of reporting conventions and inflates the $2.00B NPV; a more conservative rate would compress that figure materially. The NPV-to-market-cap gap of roughly 16x is the central tension: it could reflect the market pricing in significant execution risk, or it could signal that the asset is not yet fully valued. The $1.30B initial capex, at 65% of NPV, is manageable but still large relative to market cap, creating meaningful dilution risk for a developer.
The jurisdiction—Alaska, USA—is mining-friendly but carries logistical and permitting complexity that can delay timelines. Payback at 2.1 years is moderate and provides some downside protection. The study's price assumptions are the key watch-item: if gold, copper, or silver prices fall below those levels, returns erode quickly. The single most important risk is financing the $1.30B capex without excessive dilution, given the market cap is a fraction of that spend.
Our take, benchmarked against the project economics in the Mining Stocks database. Figures are estimates drawn from company technical reports — not investment advice; always verify against the source filing.