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Study Shows Twin Metals Mine Economically Feasible

Updated: 08/20/2014 10:46 AM
Created: 08/20/2014 10:09 AM WDIO.com

MINNEAPOLIS (AP) - The majority owner of the proposed Twin Metals copper-nickel mine in northeastern Minnesota says a study shows the project would be economically competitive.

A feasibility study released by Duluth Metals Wednesday says the mine would have a strong operating margin. Duluth Metals CEO Kelly Osborne says the study validates the mine's potential with its mineral resource, a ready-built mining infrastructure and an experienced workforce.

The project has been a target of criticism by environmentalists who are concerned it will harm the nearby Boundary Waters Canoe Area Wilderness. Both Twin Metals and a separate copper-nickel mining proposal for the area, PolyMet, have drawn scrutiny because the metals are bound up in sulfide compounds that can produce sulfuric acid and release other pollutants when exposed to air and rain.

Copyright 2014 The Associated Press.

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