|
| Sub-Chapter | 2005 | 2007 | 2008 | 2009 | 2010 |
| Tungsten (wolfram) and articles thereof, including waste and scrap. | $591 | $106,079 | | | |
| Molybdenum and articles thereof, including waste and scrap. | | $70,374 | $12,339 | | |
| Tantalum and articles thereof, including waste and scrap. | $27,387 | | | | |
| Beryllium, chromium, germanium, vanadium, gallium, hafnium | | $139,750 | $11,457 | $666 | $7,225 |
| Total | $27,978 | $316,203 | $23,796 | $666 | $7,225 |
|
|
