16 Apr 2020 . Up to 350 miners to be impacted by impending shutdown at Keetac. . Of all the taconite plants on Minnesota39s Iron Range, Keetac has been up . In the near term, the layoff will impact approximately 75 employees with three.
21 Feb 2020 . Taconite Iron Ore Processing: National Emission Standards for Hazardous Air Pollutants . HAP, or air toxics, are those pollutants known to cause cancer or other serious health effects. . Iron Mining Association of Minnesota.