Born from West Virginia University research, Mission Critical Materials recovers heavy rare earth elements from acid mine drainage while improving water quality at legacy mining sites. Launched in December 2025, the U.S.-based company is commercializing a modular process demonstrated in both Appalachian coal-mine water and hard-rock mine drainage, turning mandated environmental treatment into a domestic source of materials for defense and advanced manufacturing. Its work is supported by more than $35 million in U.S. government funding.