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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $601,744 | $922,802 | $987,228 | $1,498,828 | $1,369,995 | $954,969 | $1,420,180 |
| Manganese oxides other than manganese dioxide | $478,101 | $281,182 | $669,231 | $1,196,971 | $730,590 | $1,310,176 | $1,851,944 |
| Total | $1,079,845 | $1,203,984 | $1,656,459 | $2,695,799 | $2,100,585 | $2,265,145 | $3,272,124 |
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