Hudbay closes $600M (U.S.) investment from Mitsubishi

Executive Summary

• Hudbay Minerals Inc. has closed a strategic investment from Mitsubishi Corporation for a 30% joint venture interest in Copper World LLC, the owner of the fully permitted Copper World project in Arizona.
• Mitsubishi contributed approximately $420 million in cash upon closing and will contribute an additional $180 million within 18 months to complete its initial $600 million investment.
• The transaction significantly derisks the Copper World project, increasing Hudbay's estimated project Internal Rate of Return (IRR) to approximately 90% based on prefeasibility study estimates, while reducing Hudbay's share of remaining capital contributions to approximately $200 million.

Key Details

• Transaction Structure: Mitsubishi Corporation acquires a 30% joint venture interest in Copper World LLC.
• Total Investment Value: $600 million USD.
• Initial Contribution: $420 million USD contributed to Copper World LLC upon closing.
• Deferred Contribution: $180 million USD to be contributed within 18 months of closing to complete the initial investment.
• Future Capital Obligations: Mitsubishi will fund its pro-rata 30% share of future equity capital contributions required for the construction of Copper World.
• Use of Proceeds: The $420 million proceeds will directly finance the remaining definitive feasibility study (DFS) costs, presanction costs, and initial project development costs for Copper World.
• Financial Impact on Hudbay:
  • Increases project IRR to Hudbay to approximately 90% (based on PFS estimates).
  • Reduces Hudbay's estimated share of remaining capital contributions to approximately $200 million.
  • Defers Hudbay's first capital contribution to 2028 at the earliest.
• Balance Sheet Status (Pre-Transaction):
  • Cash and cash equivalents: >$600 million.
  • Net debt to adjusted EBITDA ratio: 0.5 times (as of Sept. 30, 2025).
• Project Status:
  • Copper World is fully permitted.
  • Definitive Feasibility Study (DFS) expected to be completed in mid-2026.
  • Sanction decision expected in 2026.
• Strategic Context: The partnership leverages Mitsubishi’s global mining presence (including investments in five of the top 20 copper mines globally by 2024 production) and Hudbay’s technical capabilities to deliver a world-class copper asset.

Notable Quotes

• "Closing of the JV transaction with Mitsubishi marks the beginning of a long-term strategic partnership, an exciting new chapter for Copper World and an important growth milestone for Hudbay... This strategic partnership will leverage our organizations' complementary strengths to deliver this world-class project that will increase Hudbay's consolidated copper production by more than 50 per cent and create significant value for all of our stakeholders." — Peter Kukielski, President and CEO, Hudbay Minerals Inc.