The recovery of copper and tin from PCBAs has the potential to give the EnviroLeach process a distinct economic advantage compared to conventional smelting. When combined with EnviroLeach's current processing technology, the copper and tin recovery phase results in an over 80% mass reduction of PCBAs. This mass reduction results in significantly reduced downstream extraction and refining related charges, and higher metal payments. In addition, the recovery and sale of tin creates potential for increased operating margins.