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| Sub-Chapter | 2006 | 2007 | 2010 | 2011 |
| Tungsten (wolfram) and articles thereof, including waste and scrap. | | $19,342 | | |
| Magnesium and articles thereof, including waste and scrap. | $166 | | $37 | |
| Zirconium and articles thereof, including waste and scrap. | | $245 | | |
| Beryllium, chromium, germanium, vanadium, gallium, hafnium | | | $184 | $1,036 |
| Total | $166 | $19,587 | $221 | $1,036 |
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