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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $15,625 | $4,330 | $16,224 | $18,572 | $12,314 | $5,440 | $8,639 |
| Alkali/alkaline-earth metals other than sodium & calcium | $25,967 | $8,934 | $6,028 | $28,615 | $1,994 | $44,753 | $22,081 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $348 | | $781 | | $94 | $279 | $21 |
| Mercury | $2,988 | $369 | $2,670 | $3,666 | $3,420 | $2,520 | $160 |
| Total | $44,928 | $13,633 | $25,703 | $50,853 | $17,822 | $52,992 | $30,901 |
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