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| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 |
| Sodium | $236 | $7,471 | $1,196 | $4,866 | |
| Alkali/alkaline-earth metals other than sodium & calcium | $407 | $760 | $3,059 | $3,007 | $3,822 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $1,231 | | | | |
| Total | $1,874 | $8,231 | $4,255 | $7,873 | $3,822 |
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