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State regulators will conduct their own review of Twin Metals project
November 25, 2019
Two PolyMet permits suspended by Minnesota Court of Appeals
September 19, 2019
Twin Metals agrees to use union labor to build its proposed mine
August 21, 2019
Court issues two rulings on PolyMet Mine in Minnesota
August 12, 2019
Twin Metals to use dry stack tailings at proposed mine in Minnesota
July 18, 2019
Appeals court sides with PolyMet
May 28, 2019
Bureau of Land Management renews Twin Metals Minnesota's federal leases
May 15, 2019
New tailings rules proposed in Minnesota
May 15, 2019
PolyMet Mining’s stock offering could result in Glencore majority ownership
May 8, 2019
Draft permit to mine released by Minnesota
January 5, 2018
Minnesota estimates PolyMet would need $1 billion in financial assurance for copper-nickel mine
December 21, 2017
PolyMet proposes $544 million to cover early environmental risks
December 14, 2017
US House passes bill clearing the way for PolyMet land swap
November 29, 2017
Minnesota governor says he supports PolyMet copper-nickel project
October 24, 2017
Comment period on PolyMet mine damn safety permits opens
September 18, 2017
Bill to force completion of land swap for PolyMet mine introduced
July 5, 2017
Research unlocks possibility of new mining industry for Minnesota
May 31, 2017
US Forest Service approves land swap for PolyMet Mining Co.
January 10, 2017
PolyMet submits permit to mine application in Minnesota
November 3, 2016
Twin Metals files suit against federal government for renewal of mineral leases
September 14, 2016