Mining

Drilling equipment at a Twin Metals mineral exploration site.

Major Twin Metals Partner Declines To Increase Stake in Project

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Mine proposal near the Boundary Waters loses significant source of funding. Chilean mining company Antofagasta PLC has declined an opportunity to take a bigger financial stake in the Twin Metals project near Ely, MN. The move means the company—which has invested more than $200 million in the joint venture so far—will pass up the chance for a controlling stake in the project, and operations will revert to junior mining company Duluth Metals.

Anti-mining Activists to Open Office in Ely

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New mine proposals in northeastern Minnesota have prompted a group of local citizens and businesses to plan an anti-mining “action center” on Ely’s Sheridan Street. The office will provide information to …

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Spruce Road Copper Estimate Doubles

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The world’s largest untapped copper deposit just got bigger. Twin Metals, Inc. now estimates its resource near Ely holds more than 8-billion pounds of copper.

State Mineral Exploration Leases Approved

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The Minnesota Executive Committee agreed to permit exploration for minerals on state lands and privately held land where the state owns the minerals rights.

Court Upholds State’s Sulfate Rules

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A Ramsey County Court judge upheld Minnesota’s restrictions on sulfate pollution in waters that host wild rice plants, denying a Minnesota Chamber of Commerce challenge that the rules were vague and arbitrarily applied.

Cravaack: PolyMet Review by October

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Minnesota 8th District Representative Chip Cravaack expects the revised Draft Environmental Impact Statement for the PolyMet precious metal mine near Babbitt to be released by October.

Dog Teams Carry Mining Petitions

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Environmental advocates concerned about mining in northeastern Minnesota are using dog teams to carry petitions to the state capitol in St. Paul.

Northshore Mining Fined $240,175

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Northshore Mining was fined $240,175 by the Minnesota Pollution Control Agency after its taconite processing plant in Silver Bay was cited for 30 air quality violations in 2010 and 2011.