The majority owner of the proposed Twin Metals copper-nickel mine in northeastern Minnesota says a study shows the project would be economically competitive.
The parent company for the proposed Twin Metals copper-nickel mine near Ely expects to reach a key milestone in the coming months. Duluth Metals Limited says its “pre-feasibility” study is progressing well and is scheduled for completion by mid-year.
The company planning an underground copper, nickel and precious metals mine near Ely in northeastern Minnesota boosted its estimates Tuesday of the reserves the site holds.
Environmental groups are launching a campaign ahead of the summer vacation season against plans for copper, nickel and precious metals mining in northeastern Minnesota.