1. Sapa Extrusions Inc 2500 Alumax Rd, Yankton, SD 57078 Coordinate: 42.88859,-97.35042 Phone: (605) 665-6063
2. Bowcreek Metal Inc 3009 E Highway 50, Yankton, SD 57078 Coordinate: 42.87915,-97.34377 Phone: (605) 665-1166