PolyMet appeals air permit decision on controversial Minnesota mine
Mining News Pro - PolyMet Mining has petitioned the Minnesota Supreme Court to review a lower court ruling on the company’s air permit, which is necessary for a proposed copper-nickel mine on the Iron Range to go ahead.
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Antofagasta seeks green light for Minnesota mine near wilderness
Mining News Pro - Chile’s Antofagasta said on Wednesday that it had kicked off the environmental permitting process for its $1.7 billion Twin Metals copper, nickel and platinum mining project in the United States after the Trump administration overturned an Obama-era decision to protect a nearby wilderness area.
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