Patterson Lake South (PLS) Project Feasibility Study: $1.32B NPV, 28.2% IRR
Paladin Energy Ltd.'s Patterson Lake South (PLS) Project in Canada, Saskatchewan (Athabasca Basin) has a Feasibility Study outlining an after-tax NPV of $1.32B, an after-tax IRR of 28.2%, and initial capital of $1.23B. The mine plan runs 10 years at about 9 Mlb U3O8 pa per year.
Paladin Energy Ltd.'s Patterson Lake South (PLS) Project has reported Feasibility Study results for the uranium project in Canada, Saskatchewan (Athabasca Basin). The study headlines an after-tax net present value of $1.32B at a 8% discount rate. It reflects Paladin Energy Ltd.'s (PDN.TO) latest disclosed economics for the asset.
Economics. The after-tax NPV is $1.32B using a 8% discount rate. After-tax IRR is 28.2%. Initial capital expenditure is estimated at $1.23B. All-in sustaining costs are pegged at 15.2 USD/lb U3O8. Economics are based on US$90.9/lb U3O8 (real) average long-term Q2 2025 TradeTech/UxC spot and term forecast.
Production and mine plan. The project envisions an underground operation. Life of mine is 10 years. Average annual production is approximately 9 Mlb U3O8 pa. Average head grade is 1.41% U3O8 (mill feed). Metallurgical recovery averages 97%.
Resources and ownership. The company holds a 100% interest in the project.
These figures are extracted from Paladin Energy Ltd.'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 |
|---|---|---|---|
| Probable | 3.0 Mt | 1.41% U3O8 | 93.7 Mlb U3O8 |
| Category | Tonnage | Grade | Contained |
|---|---|---|---|
| Indicated | 2.9 Mt | 1.88% U3O8 | 118.8 Mlb U3O8 |
| Inferred | 0.4 Mt | 1.19% U3O8 | 10.9 Mlb U3O8 |
| Total | 3.3 Mt | 1.80% U3O8 | 129.7 Mlb U3O8 |
Our Analysis
- IRR after-tax
- 28.2%
higher than 9% of 11 projects we track
- NPV after-tax
- $1.32B
higher than 92% of 12 projects we track
- Initial capex
- $1.23B
93% of NPV
costlier than 100% of 10 projects we track
- Mine life
- 10yrs
- Discount rate
- 8%
- Study price assumption
- US$90.9/lb U3O8 (real) average long-term Q2 2025 TradeTech/UxC spot and term forecast
The 28.2% after-tax IRR places this project in the bottom quartile of the 11 uranium peers we track, yet the $1.32B NPV ranks above 92% of the 12 in our universe. That split is the whole investment thesis in miniature: this is a large, low-returning asset, not a high-multiple growth story. For an investor, the rank says the upside is real but the payoff profile is closer to a utility-scale infrastructure hold than a speculative exploration hit. The practical financing hurdle for a developer sits near a 15% after-tax IRR, so the project clears that bar comfortably, but it does so with little margin for the cost and schedule slippage that feasibility studies of this scale routinely encounter.
The constraint that matters most is the $1.23B initial capex, which is 93% of NPV and higher than every one of the 10 uranium projects we track for capital intensity. That is not a fatal flaw given this is one of three projects in the company's portfolio, but it frames the risk precisely: the equity markets are being asked to fund a build whose cost nearly equals the entire value the asset is expected to create. The feasibility study stage, with its typical plus or minus 15% band, gives these numbers the most weight they will ever carry, but it also means the capex figure is the one most likely to move against the project in execution.
The study assumes a US$90.9/lb U3O8 average long-term price, and the returns are entirely hostage to that assumption holding through a 10-year mine life in the Athabasca Basin, a jurisdiction that is as mining-friendly as uranium gets but where regulatory patience is not a given. The question that decides whether this works is not whether the resource is real, it is whether the company can finance a $1.23B build without diluting away the very NPV that justifies the effort.
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.