Commodity2005200620072008200920102011
Master alloys of copper$4,710,973$9,388,323$11,437,190$11,910,722$3,936,522$8,645,545$18,111,080
Total$4,710,973$9,388,323$11,437,190$11,910,722$3,936,522$8,645,545$18,111,080