Anodes casting is the final destination for the copper at the smelter after the anodes barrel furnace has finished reducing it to 99.99% purity with proper oxygen and sulfur levels (measured in parts per million). From here the cast anodes (seen hanging red hot at the left) is placed into a water bath called a "Bosh Tank" for cooling and then removed by a large forklift and readied to be moved by flatbed rail car to the refiner where precious metal is extracted, primarily gold and silver, and the copper is electrolytically refined to ASTM international standards.