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| Sub-Chapter | 2005 | 2006 | 2010 |
| Tungsten (wolfram) and articles thereof, including waste and scrap. | $100,615 | $14,244 | |
| Molybdenum and articles thereof, including waste and scrap. | $275,062 | $551,046 | |
| Tantalum and articles thereof, including waste and scrap. | $65,532 | | |
| Magnesium and articles thereof, including waste and scrap. | $7,955 | | $11,550 |
| Titanium and articles thereof, including waste and scrap. | $4,561 | $4,294 | |
| Beryllium, chromium, germanium, vanadium, gallium, hafnium | | $240 | $5,940 |
| Total | $453,725 | $569,824 | $17,490 |
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