1. Alcoa Inc 2300 Alumax Rd, Yankton, SD 57078 Coordinate: 42.882088,-97.39862 Phone: (605) 665-6063
2. Sapa Extrusions Inc 2500 Alumax Rd, Yankton, SD 57078 Coordinate: 42.88859,-97.35042 Phone: (605) 665-6063