Marimaca Oxide Deposit (MOD) Feasibility Study: $709M NPV, 31% IRR
Marimaca Copper Corp.'s Marimaca Oxide Deposit (MOD) in Antofagasta Region, Chile has a Feasibility Study outlining an after-tax NPV of $709M, an after-tax IRR of 31%, and initial capital of $587M. The mine plan runs 13 years at about 50 ktpa Cu cathode per year.
Marimaca Copper Corp.'s Marimaca Oxide Deposit (MOD) has reported Feasibility Study results for the copper project in Antofagasta Region, Chile. The study headlines an after-tax net present value of $709M at a 8% discount rate. It reflects Marimaca Copper Corp.'s (MARI.TO) latest disclosed economics for the asset.
Economics. The after-tax NPV is $709M using a 8% discount rate. After-tax IRR is 31%. Initial capital expenditure is estimated at $587M, with life-of-mine sustaining capital of $529M. The study models a payback period of 2.5 years. All-in sustaining costs are pegged at 1.97 USD/lb Cu. Economics are based on US$5.05/lb Cu (COMEX 3-month avg as of Aug 25, 2025); long-term US$4.30/lb Cu.
Production and mine plan. The project envisions an open-pit operation. Life of mine is 13 years. Average annual production is approximately 50 ktpa Cu cathode. Average head grade is 0.42% CuT. Metallurgical recovery averages 72%. The open-pit strip ratio is 0.8:1.
Resources and ownership. Mineral reserves: Proved 94,297 kt @ 0.46% CuT, 0.28% CuS (433 kt Cu); Probable 84,339 kt @ 0.37% CuT, 0.21% CuS (314 kt Cu); Total P&P 178,635 kt @ 0.42% CuT, 0.25% CuS (748 kt Cu). Mineral resources: Measured 103,258 kt @ 0.45% CuT, 0.27% CuS (466 kt Cu); Indicated 110,118 kt @ 0.35% CuT, 0.19% CuS (387 kt Cu); Total M&I 213,490 kt @ 0.40% CuT, 0.23% CuS (854 kt Cu); Inferred 21,193 kt @ 0.29% CuT, 0.14% CuS (62 kt Cu). The company holds a 100% interest in the project.
These figures are extracted from Marimaca Copper 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.