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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $711 | | $25,186 | $3,321 | $19,688 | $9,366 | $14,354 |
| Manganese oxides other than manganese dioxide | $135,908 | $253,388 | $289,421 | $376,477 | $380,161 | $496,117 | $535,651 |
| Total | $136,619 | $253,388 | $314,607 | $379,798 | $399,849 | $505,483 | $550,005 |
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