Sub-Chapter200520062008200920102011
Tungsten (wolfram) and articles thereof, including waste and scrap.$2,368$774 $111$102 
Molybdenum and articles thereof, including waste and scrap.     $4
Magnesium and articles thereof, including waste and scrap.$881 $1,124$2,408  
Cobalt mattes and other intermediate products of cobalt metallurgy  $1,621   
Titanium and articles thereof, including waste and scrap.$30$210$10,000   
Zirconium and articles thereof, including waste and scrap.$659     
Beryllium, chromium, germanium, vanadium, gallium, hafnium   $305  
Total$3,938$984$12,745$2,824$102$4