Marathon Project Feasibility Study: C$1.07B NPV, 28% IRR
Generation Mining Limited's Marathon Project in Canada, Northwestern Ontario has a Feasibility Study outlining an after-tax NPV of C$1.07B and an after-tax IRR of 28%. The proposed mine plan runs 13 years.
Generation Mining Limited's Marathon Project has reported Feasibility Study results for the copper-palladium project in Canada, Northwestern Ontario. The study headlines an after-tax net present value of C$1.07B at a 6% discount rate. It reflects Generation Mining Limited's (GENM.TO) latest disclosed economics for the asset.
Economics. The after-tax NPV is C$1.07B using a 6% discount rate. After-tax IRR is 28%. The study models a payback period of 1.9 years. Economics are based on 3-yr trailing average metal prices at the effective date of the Technical Report (November 1, 2024).
Production and mine plan. Life of mine is 13 years.
These figures are extracted from Generation Mining Limited'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.
Our Analysis
- IRR after-tax
- 28%
higher than 47% of 369 projects we track
- NPV after-tax
- C$1.07B
higher than 65% of 512 projects we track
- Payback
- 1.9yrs
slower than 28% of 297 projects we track
- Mine life
- 13yrs
- Discount rate
- 6%
- Study price assumption
- 3-yr trailing average metal prices at the effective date of the Technical Report (November 1, 2024)
- Spot copper today
- $6.61/lb
A feasibility study that puts after-tax NPV at C$1.07B against a company whose entire market capitalisation is roughly US$130M is the whole story here, and it cuts two ways. Either the market has not done the work on a Northwestern Ontario copper-palladium development asset, or it has done the work and does not believe the study converts into a financed, permitted mine. A micro-cap with three projects in its portfolio cannot quietly carry a build of this scale, and that is the most plausible reason a gap this wide persists.
The returns themselves are good but not exceptional. A 28% after-tax IRR sits above only 47% of the 369 projects we track across all commodities, squarely in the lower half, and the 65th-percentile NPV rank is respectable rather than standout. What rescues the economics is timing: payback of 1.9 years, faster than 72% of the 297 projects we track, means the capital comes back quickly, which matters enormously when the developer is a junior with limited financial depth. Against the roughly 15% after-tax hurdle project finance typically demands, and the 20%-plus a higher-risk junior with little else in the portfolio should be held to, 28% clears with room but not by a wide margin.
Two things raise confidence. This is feasibility-level work, a build-ready estimate with the tightest band a study can carry, not a scoping exercise. And the jurisdiction is Canada, which is a genuine quality signal for permitting and financing. The metal price assumption is a three-year trailing average struck at the November 1, 2024 effective date, so it is neither promotional nor stale. The open question is not the orebody or the returns: it is whether this company can fund and permit the build without gutting the equity that owns it.
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.