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| Sub-Chapter | 2006 | 2007 | 2008 | 2010 | 2011 |
| Tungsten (wolfram) and articles thereof, including waste and scrap. | | | | $657 | $2,925 |
| Tantalum and articles thereof, including waste and scrap. | $2,355 | | | | |
| Magnesium and articles thereof, including waste and scrap. | | $3,140 | $6,798 | $1,155 | $36,201 |
| Manganese and articles thereof, including waste and scrap. | | | | | $70 |
| Cermets and articles thereof, including waste and scrap. | | | | | $1,247 |
| Total | $2,355 | $3,140 | $6,798 | $1,812 | $40,443 |
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