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| Sub-Chapter | 2006 | 2008 | 2009 |
| Tungsten (wolfram) and articles thereof, including waste and scrap. | $1,297 | | |
| Tantalum and articles thereof, including waste and scrap. | | $18,386 | |
| Magnesium and articles thereof, including waste and scrap. | $164 | | |
| Cobalt mattes and other intermediate products of cobalt metallurgy | $432 | | |
| Manganese and articles thereof, including waste and scrap. | $17 | | |
| Beryllium, chromium, germanium, vanadium, gallium, hafnium | | | $250 |
| Total | $1,910 | $18,386 | $250 |
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