Commodity2005200620072008200920102011
Master alloys of copper$2,983,606$5,604,636$5,326,955$6,856,103$5,067,477$8,552,041$9,070,194
Total$2,983,606$5,604,636$5,326,955$6,856,103$5,067,477$8,552,041$9,070,194