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| Sub-Chapter | 2005 | 2006 | 2007 | 2008 | 2009 |
| Cobalt mattes and other intermediate products of cobalt metallurgy | | $3,629 | | | |
| Manganese and articles thereof, including waste and scrap. | $2,361,159 | $3,483,250 | $6,279,949 | $10,844,419 | $2,455,930 |
| Total | $2,361,159 | $3,486,879 | $6,279,949 | $10,844,419 | $2,455,930 |
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