Sub-Chapter2005200720082011
Iron ores and concentrates   $3,389
Niobium, tantalum, vanadium and concentrates. $1,964$3,193 
Precious metal ores and concentrates.   $141
Granulated slag from the manufacture of iron or steel.   $30,038
Ash and residues$352   
Total$352$1,964$3,193$33,568