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| Sub-Chapter | 2006 | 2010 |
| Tantalum and articles thereof, including waste and scrap. | | $3,055 |
| Magnesium and articles thereof, including waste and scrap. | $6,746 | $23,778 |
| Cobalt mattes and other intermediate products of cobalt metallurgy | $3,372 | $6,522 |
| Cadmium and articles thereof, including waste and scrap. | | $3,402 |
| Titanium and articles thereof, including waste and scrap. | $941 | $20,955 |
| Zirconium and articles thereof, including waste and scrap. | | $300 |
| Beryllium, chromium, germanium, vanadium, gallium, hafnium | $355 | $25,262 |
| Cermets and articles thereof, including waste and scrap. | $1,572 | $7,351 |
| Total | $12,986 | $90,625 |
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