Commodity2005200620072008200920102011
Master alloys of copper$2,283,508$4,546,165$3,700,120$2,759,489$1,873,352$3,780,178$6,489,645
Total$2,283,508$4,546,165$3,700,120$2,759,489$1,873,352$3,780,178$6,489,645