Twin Metals Minnesota
Mining
Type
Suspended
Status
🇺🇸 United States
Country
Project information
Aggregation level:
Asset
Aggregation level:
Asset
Report standard:
Sec S K 1300
Report standard:
Sec S K 1300
Ownership %:
100
Ownership %:
100
Operator:
Yes
Operator:
Yes
Extraction:
Underground
Extraction:
Underground
Description
Underground Cu-Ni-PGM project in Minnesota. Federal mineral leases cancelled in January 2022 and Boundary Waters area withdrawn from mining in 2023; project is suspended pending legal proceedings. Antofagasta is challenging the lease cancellations in U.S. federal courts.
Mining metrics
As at 31 December 2025 · inclusive
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Reserves & resources — detail
As at 31 December 2025
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Royalties & streams
All royalty and stream interests in the database that refer to this asset by name.
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