Hudbay Files Copper World DFS: $1.24B NPV, 16.8% IRR on $3.46B Build
HBM sits 55% above its 52-week low of $14.335 on light trading volume (0.3× avg).
Summary
Hudbay's Copper World definitive feasibility study pegs the Base Case at a $1,241M after-tax NPV8%, 16.8% IRR and $3,463M life-of-mine capital, with a 37-year Extension Case worth $2,510M NPV contingent on federal permits not yet sought.
Key Events · M&A and Partnerships · HBM
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DFS Confirms Base Case Economics
After-tax NPV8% of $1,241M and NPV10% of $845M, a 16.8% IRR, 5.4-year payback and average annual EBITDA of $566M at $5.00/lb copper.
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$3.46B Life-of-Mine Capital
Total capital of $3,463M: $2,070M initial growth, $710M expansionary growth (moly plant $25M, IPCC $242M, 90 kstpd concentrator expansion $443M), $484M sustaining and $199M capitalized stripping.
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390 Mt Reserve at 0.47% Cu
Proven and probable reserves of 390.4 Mt grading 0.47% Cu, 103 ppm Mo, 5.08 ppm Ag and 0.023 ppm Au, supporting 95,000 tonnes average annual copper production at $1.70/lb cash cost.
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Extension Case Needs Federal Permits
A 37-year Extension Case carries NPV8% of $2,510M and an 18.8% IRR but requires NEPA permitting onto federal lands from Year 10, a process Copper World has not yet initiated.
Analysis · HBM · Energy & Transportation
Behind the Copper World construction approval that Hudbay and Mitsubishi announced on October 21 sits this technical and economic backbone. The Base Case — a 15-year mine relying only on state and local permits — carries an after-tax NPV8% of $1,241M and a 16.8% IRR on $3,463M of life-of-mine capital, producing an average 95,000 tonnes of copper a year at $1.70/lb cash cost. Solid but not spectacular at $5.00/lb copper, and highly copper-price sensitive: at $4.50/lb the NPV8% falls to $663M and the IRR to 12.9%. The bigger prize sits in the Extension Case, which lifts NPV8% to $2,510M and mine life to 37 years, but it depends on federal permits for which Copper World has not yet applied — so it is upside, not base case. At 390.4 Mt and 0.47% Cu, the reserve is slightly lower grade than the 2023 PFS (385 Mt at 0.54% Cu) because the plan deliberately shrinks the pit to cut the strip ratio within tailings-capacity limits.
How filings like this one have moved
In the 30 days to Oct 23, 2026, 36.7% of the 1026 measured filings Wiseek scored 8 moved their stock by 5% or more by the next session's close. The median move was -0.76%. These are measured outcomes after filings of this importance, not a forecast for this one.
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At the time of this filing, HBM was trading at $22.17 on NYSE in the Energy & Transportation sector, with a market capitalization of approximately $9.8B. The 52-week trading range was $14.34 to $32.15. This filing was assessed with positive market sentiment and an importance score of 8 out of 10.