|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $1,078,000 | $697,000 | $437,000 | $1,082,000 | $621,000 | $899,000 | $620,000 |
| Manganese oxides other than manganese dioxide | $506,000 | $351,000 | $322,000 | $500,000 | $302,000 | $840,000 | $725,000 |
| Total | $1,584,000 | $1,048,000 | $759,000 | $1,582,000 | $923,000 | $1,739,000 | $1,345,000 |
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