Mining Company go Results Found: 5 Button group with nested dropdown Polymet Mining Polymet Mining 6500 County Road 666 PO Box 475 Hoyt Lakes MN 55750-0475 (218) 471-2150 Hibbing Taconite Company 4950 County Rd. Hwy 5 Hibbing MN 55746 (218) 262-5950 Twin Metals Twin Metals 380 St. Peter Street, Suite 705 St. Paul MN 55102 USS Corporation USS Corporation PO Box 417 Mt. Iron MN 55768 (218) 749-7300 United Taconite / Cleveland Cliffs 1200 West Highway 16 Forbes MN 55738 (218) 744-7679
