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Topic - Polymet Mining

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A former iron ore processing plant near Hoyt Lakes, Minn., that would become part of a proposed PolyMet copper-nickel mine, is pictured on Feb. 10, 2016. The U.S. Army Corps of Engineers said Tuesday, June 6, 2023, it has revoked a crucial federal permit for the proposed NewRange Copper Nickel mine, previously known as PolyMet, in northeastern Minnesota, saying the permit did not comply with the water quality standards set by a sovereign downstream tribe. (AP Photo/Jim Mone, File)

U.S. Army Corps revokes permit for Minnesota mine, cites threat to tribal water standards

By Steve Karnowski - Associated Press

FILE - This Feb. 10, 2016, file photo, shows a former iron ore processing plant near Hoyt Lakes, Minn., that would become part of a proposed PolyMet copper-nickel mine. Environmental Protection Agency documents show that its staffers were critical of how Minnesota regulators drafted a key permit for the planned PolyMet copper-nickel mine. And they show the EPA officials concluded the permit would violate federal law because it lacked specific water pollution limits. The EPA released the documents after a court challenge by WaterLegacy. Environmental attorney Paula Maccabee says the EPA's concerns weren't reflected in PolyMet's final water pollution permit. (AP Photo/Jim Mone, File)

Swiss-based Glencore takes controlling stake in PolyMet mine

Associated Press

FILE - In this Feb. 10, 2016, file photo, the closed LTV Steel taconite plant sits idle near Hoyt Lakes, Minn. The site, which closed in 2001, may return to life as part of Minnesota's first copper-nickel mine, owned by PolyMet Mining Corp. Environmental groups have gone to court to challenge the state's decision to grant key permits for the proposed mine in northeastern Minnesota. (AP Photo/Jim Mone, File)

Environmentalists go to court to fight PolyMet mine permits

By STEVE KARNOWSKI - Associated Press

House debates Minnesota expanded mining legislation

Associated Press

Forest Service OKs land swap for proposed PolyMet mine

Associated Press