|
| Sub-Chapter | 2005 | 2006 | 2007 |
| Hydrogen, rare gases and other non-metals. | $1,726 | $4,488 | $1,869 |
| Hydrogen chloride (hydrochloric acid); | $2,058 | $2,319 | $5,352 |
| Sulphuric acid; oleum. | $3,433 | $74 | $1,807 |
| Nitric acid; sulphonitric acids. | $2,165 | $2,114 | $687 |
| Other inorganic acids and oxygen compounds | $1,198 | $1,115 | |
| Halides and halide oxides of non-metals. | $76 | | |
| Sodium hydroxide (caustic soda); | $1,858 | $9,076 | |
| Chromium oxides and hydroxides. | | $84 | |
| Iron oxides and hydroxides | $4,556 | | |
| Lead oxides; red lead and orange lead. | | | $28 |
| Hydrazine and hydroxylamine and their inorganic salts | | | $70 |
| Fluorides; fluorosilicates and other complex fluorine salts. | | | $75 |
| Chlorides, chloride oxides and chloride hydroxides | | $197 | |
| Hypochlorites; commercial calcium hypochlorite | $31,108 | $51,199 | $67,000 |
| Sulphites; thiosulphates. | | $19 | |
| Sulphates; alums; peroxosulphates (persulphates). | | $190 | |
| Nitrites; nitrates. | | $316 | |
| Carbonates; peroxocarbonates (percarbonates) | $2,900 | $2,951 | $2,293 |
| Silicates; commercial alkali metal silicates. | | | $280 |
| Colloidal precious metals | $844 | $1,793 | |
| Radioactive chemical elements and radioactive isotopes | | | $514 |
| Isotopes other than those of heading 28.44 | $378 | $2,846 | $676 |
| Hydrogen peroxide, whether or not solidified with urea | | $44 | |
| Carbides, whether or not chemically defined. | $2,145 | $253 | $2,293 |
| Other inorganic compounds | $228 | $20,659 | |
| Total | $54,673 | $99,737 | $82,944 |
|
|
