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| Sub-Chapter | 2005 | 2006 | 2007 | 2008 |
| Tantalum and articles thereof, including waste and scrap. | | $8,142 | | |
| Magnesium and articles thereof, including waste and scrap. | | $1,064 | $21,986 | |
| Cobalt mattes and other intermediate products of cobalt metallurgy | | $64,109 | | |
| Zirconium and articles thereof, including waste and scrap. | | | $502 | |
| Cermets and articles thereof, including waste and scrap. | $41,057 | $29,543 | | $49,462 |
| Total | $41,057 | $102,858 | $22,488 | $49,462 |
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