Mining Engineering Online

The leading source of mining technical information since 1949




WEB-ONLY CONTENT


Teck and Polymet announce joint venture to advance the NorthMet Project
press release - February 16, 2023
Department of Interior announces mining ban on federal land in Minnesota
William Gleason - January 26, 2023
Mine permitting legisilation not included in Defense Authorization Act
December 7, 2022
Republican’s win of US House majority could lead to shorter mine permitting timelines
November 17, 2022
PolyMet and Teck form joint venture to advance Minnesota projects
July 21, 2022
Minnesota could help power energy transition
May 5, 2022
Court sends PolyMet air permit back to state for review
July 20, 2021
EPA decision could slow progress of PolyMet Mine
June 7, 2021
PolyMet’s permit to mine paused by Minnesota Supreme Court ruling
April 28, 2021
Importance of mining remains strong in Minnesota
William Gleason - April 15, 2021
MN Supreme Court hands victory to PolyMet copper-nickel mine
February 25, 2021
U.S. District Court dismisses federal challenge of PolyMet water permit
February 17, 2021
Minnesota lawmakers propose ban and moratorium on copper mining
January 14, 2021
Minnesota’s Department of Natural Resources agrees to review mining rules
November 23, 2020
Judge rules Minnesota Pollution Control Agency broke no laws in PolyMet mine case
September 8, 2020
Minnesota Supreme Court to hear appeal on PolyMet air permit
June 17, 2020
PolyMet’s air permit rejected by Minnesota appeals court
March 25, 2020
Minnesota Department of Natural Resources appeals ruling against PolyMet Mine
February 13, 2020
Minnesota court rejects key permits for PolyMet Mine
January 13, 2020
Twin Metals Minnesota submits mine plan
December 19, 2019