A major partner has given up the right to take a bigger stake in a proposed copper-nickel mine near Ely in northeastern Minnesota. Chilean-based mining company Antofagasta PLC said Thursday it has terminated its option to buy another 25 percent of Twin Metals Minnesota. The announcement says Toronto-based Duluth Metals Ltd. is now assuming control of the joint venture.
Regulators say they won’t extend the 90-day comment period for the environmental review for the proposed PolyMet copper-nickel mine beyond March 13.
The Department of Natural Resources wasn’t taking chances when it picked a site for the first of three public forums on a proposed copper-nickel mine in northeastern Minnesota: It booked one of the largest venues the region.
A long-awaited updated environmental review of the proposed PolyMet copper-nickel mine in northern Minnesota has been delayed by last month’s federal government shutdown.