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| Sub-Chapter | 2005 | 2006 |
| Tungsten (wolfram) and articles thereof, including waste and scrap. | $12,423 | $23,642 |
| Tantalum and articles thereof, including waste and scrap. | | $25,657 |
| Magnesium and articles thereof, including waste and scrap. | | $35,274 |
| Cobalt mattes and other intermediate products of cobalt metallurgy | $60 | $104,812 |
| Cadmium and articles thereof, including waste and scrap. | $143 | |
| Titanium and articles thereof, including waste and scrap. | $1,714,463 | $3,161,579 |
| Manganese and articles thereof, including waste and scrap. | $17,311 | |
| Total | $1,744,400 | $3,350,964 |
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