Commodity2005200620072008200920102011
Unrefined copper; copper anodes for electrolytic refining$11,316,088$27,551,045$25,467,607$22,001,985$14,900,732$50,390,487$33,803,719
Total$11,316,088$27,551,045$25,467,607$22,001,985$14,900,732$50,390,487$33,803,719