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| Sub-Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Tungsten (wolfram) and articles thereof, including waste and scrap. | | | | | | | $64 |
| Molybdenum and articles thereof, including waste and scrap. | | | | | | $2,317 | |
| Bismuth and articles thereof, including waste and scrap. | | | $31,373 | | | | |
| Beryllium, chromium, germanium, vanadium, gallium, hafnium | $12,350 | $35,815 | $21,911 | $13,248 | $8,460 | $5,259 | $6,807 |
| Total | $12,350 | $35,815 | $53,284 | $13,248 | $8,460 | $7,576 | $6,871 |
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