Angel Island (formerly Clayton Valley Lithium Project) Feasibility Study: $4.01B NPV, 27.4% IRR
Century Lithium Corp.'s Angel Island (formerly Clayton Valley Lithium Project) in USA, Nevada, Clayton Valley (adjacent to Silver Peak) has a Feasibility Study outlining an after-tax NPV of $4.01B, an after-tax IRR of 27.4%, and initial capital of $997M. The mine plan runs 60 years at about 26500 tpa Li2CO3 per year.
Century Lithium Corp.'s Angel Island (formerly Clayton Valley Lithium Project) has reported Feasibility Study results for the lithium project in USA, Nevada, Clayton Valley (adjacent to Silver Peak). The study headlines an after-tax net present value of $4.01B at a 8% discount rate. It reflects Century Lithium Corp.'s (LCE.V) latest disclosed economics for the asset.
Economics. The after-tax NPV is $4.01B using a 8% discount rate. After-tax IRR is 27.4%. Initial capital expenditure is estimated at $997M, with life-of-mine sustaining capital of $660M. Economics are based on Li2CO3 $24,000/t; NaOH $750/t.
Production and mine plan. The project envisions an open-pit operation. Life of mine is 60 years. Average annual production is approximately 26500 tpa Li2CO3.
Resources and ownership. The company holds a 100% interest in the project.
These figures are extracted from Century Lithium Corp.'s technical disclosures and reflect the most recent Feasibility Study 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 |
|---|---|---|---|
| Proven | 266.39 Mt | 1,147 ppm Li | 0.306 Mt Li (1.626 Mt LCE) |
| Probable | 21.26 Mt | 1,174 ppm Li | 0.025 Mt Li (0.133 Mt LCE) |
| Proven & Probable | 287.65 Mt | 1,149 ppm Li | 0.330 Mt Li (1.759 Mt LCE) |
| Category | Tonnage | Grade | Contained |
|---|---|---|---|
| Measured | 858.26 Mt | 990 ppm Li | 0.850 Mt Li (4.523 Mt LCE) |
| Indicated | 280.33 Mt | 891 ppm Li | 0.250 Mt Li (1.329 Mt LCE) |
| Measured & Indicated | 1,138.59 Mt | 966 ppm Li | 1.099 Mt Li (5.582 Mt LCE) |
| Inferred | 187.28 Mt | 820 ppm Li | 0.154 Mt Li (0.817 Mt LCE) |
Our Analysis
The 27.4% after-tax IRR ranks in the upper half of the 16 lithium projects we track and clears the practical financing hurdle for developers, though it is less decisive for a single-asset junior that would typically need 20%+ to attract project finance. The 8% discount rate is low, which flatters the $4.01B NPV; a higher rate would compress that figure meaningfully. The NPV sits at roughly 106.8x market cap, which cuts two ways: it could signal the market has not priced in the asset, or it could reflect skepticism on the 60-year mine life, permitting risk in Nevada, or the ability to finance $997M in initial capex—a sum that is capital-light relative to NPV but large versus a small market cap, raising dilution risk.
The study assumes Li2CO3 at $24,000/t and NaOH at $750/t; these are the key sensitivities. The single most important watch-item is the 60-year mine life—unusually long for a lithium project, and the back-end economics are highly sensitive to long-term price assumptions that are inherently uncertain. Jurisdiction in Nevada, adjacent to Silver Peak, is mining-friendly, but permitting timelines for new lithium brine operations in the US remain a practical risk.
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.