Twin Metals Minnesota LLC is a Minnesota mining company focused on designing, constructing and operating an underground copper, nickel, platinum, palladium, gold and silver mining project in the Iron Range region of northeast Minnesota. The Twin Metals Minnesota Project (TMM Project) brings the promise of significant long-term jobs and environmentally responsible economic development for generations in Minnesota.
Twin Metals Minnesota is a wholly owned subsidiary of Antofagasta plc of Santiago, Chile, one of the top 10 copper producers in the world. Twin Metals Minnesota maintains offices in Ely and St. Paul, Minnesota.
The Twin Metals Minnesota (TMM) Project is focused on designing, constructing and operating an underground copper, nickel, platinum, palladium, gold and silver mining project. Located approximately nine miles southeast of the city of Ely, Minnesota, and 11 miles northeast of the city of Babbitt, Minnesota, the TMM Project targets the valuable minerals within the Maturi deposit, part of the Duluth Complex geologic formation.
Pending a resolution of its federal mineral rights, TMM expects to submit a formal mine plan proposal in the next two years, initiating a rigorous and thorough environmental review by multiple state and federal agencies as required by law.