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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium | $17,904 | $25,627 | | $248,441 | $53,858 |
| Alkali/alkaline-earth metals other than sodium & calcium | $92,707 | $229,973 | | $10,672 | $352,099 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | | | $172 | $15,175 |
| Mercury | | $3,726 | $2,012 | | |
| Total | $110,611 | $259,326 | $2,012 | $259,285 | $421,132 |
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