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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $12,306 | $86 | $74 | $18,157 | | $530,530 | $368,581 |
| Manganese oxides other than manganese dioxide | $209,137 | $237,371 | $562,467 | $736,412 | $14,976 | $201,628 | $316,709 |
| Total | $221,443 | $237,457 | $562,541 | $754,569 | $14,976 | $732,158 | $685,290 |
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