New Technology

Twin Metals Minnesota is strongly committed to developing an environmentally responsible mine project that performs above state and federal environmental protection standards. Twin Metals Minnesota is building state of the art mining and environmental protection technologies into every aspect of mine development and operation:

  • Modern underground mine design will limit surface land impacts and reduce noise, dust and surface vehicular traffic;
  • Modern tailings management technologies will allow for the safe “backfilling” of about half of mill tailings into the underground mine, and the safe storage of remaining tailings in monitored surface facilities;
  • Advanced metal processing technologies will significantly reduce air emissions.