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| Sub-Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Fluorine, chlorine, bromine and iodine. | | | $2,471 | | | | $25 |
| Hydrogen, rare gases and other non-metals. | $1,591 | | $156 | $42 | $6,655 | $17,450 | $1,305 |
| Alkali or alkaline-earth metals; | | | | | | | $196 |
| Hydrogen chloride (hydrochloric acid); | | | | | $400 | | |
| Sulphuric acid; oleum. | | $22 | | | | | |
| Nitric acid; sulphonitric acids. | | | | $15 | | $798 | |
| Diphosphorus pentaoxide; phosphoric acid; | | | $2,243 | $1,186 | $1,659 | | |
| Sodium hydroxide (caustic soda); | $15,593 | | | $75 | | | $132 |
| Iron oxides and hydroxides | | | $61 | $5 | | | |
| Titanium oxides. | | | | | | $1 | |
| Fluorides; fluorosilicates and other complex fluorine salts. | | | | | $60 | | |
| Chlorides, chloride oxides and chloride hydroxides | $90 | $15 | $69 | | | | |
| Chlorates and perchlorates; bromates and perbromates | | | | | | $1,252 | $59 |
| Sulphites; thiosulphates. | | | | | $4,854 | | |
| Sulphates; alums; peroxosulphates (persulphates). | $4,091 | | | | | | $252 |
| Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates | | | | | $123 | | |
| Carbonates; peroxocarbonates (percarbonates) | $540 | | | | | | |
| Cyanides, cyanide oxides and complex cyanides. | $296,567 | | | $1,504 | | | |
| Borates; peroxoborates (perborates). | | | | | | $98 | |
| Colloidal precious metals | | | | | | $10 | |
| Radioactive chemical elements and radioactive isotopes | | | | | | | $100 |
| Isotopes other than those of heading 28.44 | | | $880 | | | | |
| Carbides, whether or not chemically defined. | | | | $1,937 | | | $132 |
| Other inorganic compounds | $13 | $101 | $1 | | $1,012 | | |
| Total | $318,485 | $138 | $5,881 | $4,764 | $14,763 | $19,609 | $2,201 |
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