Twin Metals Minnesota Submits Mine Plan To State And Federal Agencies For Review

SAINT PAUL, Minn., Dec. 18, 2019 /PRNewswire/ — Twin Metals Minnesota (TMM) today announced it has formally submitted its mine project proposal to state and federal agencies. This marks the culmination of more than a decade of engineering, hydrogeological, environmental and engagement work including the evaluation of dozens of project configurations and technologies that maximize environmental protection.