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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Zinc sulphide | $84,226 | $19,028 | | | | | |
| Cadmium sulphide | | $594 | | | | | |
| Sulphides (excl. of sodium/zinc/cadmium); polysulphides, whether or not che ... | $154,246 | $172,178 | $453,093 | $1,322,696 | $570,171 | $1,409,873 | $2,650,083 |
| Total | $238,472 | $191,800 | $453,093 | $1,322,696 | $570,171 | $1,409,873 | $2,650,083 |
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