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Hudbay and Mitsubishi Approve Copper World Project Construction; Advancing Next Major U.S. Copper Mine Towards First Production in 2029

$HBMPress releaseOct 21, 2026, 1:00 AM ETRead the release

Hudbay and Mitsubishi have formally approved the final investment decision to construct the Copper World copper mine in Arizona, following a definitive feasibility study, with first production targeted for the second half of 2029. The Base Case shows $2.07 billion of initial growth capital, annual production of 102,000 tonnes of copper over the first 10 years at $1.65/lb average cash costs, and after-tax NPV (8%) of $1.2 billion rising to $2.3 billion at $6.00/lb copper; the 37-year Extension Case NPV reaches $2.5 billion to $4.0 billion.

Key figures

Reserves
390 million tonnes at 0.47% copper
Irr base case
16.8%
Npv8 base case
1241000000
Payback period
5.4 years
Cash cost per lb
$1.65
First production
second half of 2029
Capital intensity
$22,600 per annual copper tonne
Irr extension case
18.8%
Mine life base case
15 years
Npv8 extension case
2510000000
Initial growth capital
2070000000
Mine life extension case
37 years
Ebitda base case yrs 1 10
$661 million
Levered irr hudbay base case
32%
Levered irr hudbay extension case
44%
Consolidated annual copper production tonnes
250000
Annual copper production first 10 years tonnes
102000

AI analysis

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