Sub-Chapter | 2006 | 2008 | 2009 |
Fluorine, chlorine, bromine and iodine. | $36,856 | | $6 |
Hydrogen, rare gases and other non-metals. | $37,705 | | $1 |
Artificial corundum, whether or not chemically defined; | $15,779 | | |
Salts of oxometallic or peroxometallic acids. | | | $1 |
Radioactive chemical elements and radioactive isotopes | | $4,762 | $2 |
Total | $90,340 | $4,762 | $10 |
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