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| Sub-Chapter | 2005 | 2006 | 2007 | 2010 |
| Tungsten (wolfram) and articles thereof, including waste and scrap. | | | $279 | $4,088 |
| Tantalum and articles thereof, including waste and scrap. | | | $748 | |
| Cobalt mattes and other intermediate products of cobalt metallurgy | $39,433 | $7,969 | | |
| Titanium and articles thereof, including waste and scrap. | | | | $120,524 |
| Manganese and articles thereof, including waste and scrap. | $6,354 | | | |
| Total | $45,787 | $7,969 | $1,027 | $124,612 |
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