|
| Sub-Chapter | 2005 | 2006 | 2008 | 2009 | 2010 |
| Alkali or alkaline-earth metals; | | | | $4,741 | |
| Other inorganic acids and oxygen compounds | | | $1,778 | | $3,348 |
| Ammonia, anhydrous or in aqueous solution. | | | $225 | | |
| Sodium hydroxide (caustic soda); | | | | $503 | |
| Titanium oxides. | | $3,219 | | | |
| Chlorides, chloride oxides and chloride hydroxides | $264 | | | | |
| Sulphates; alums; peroxosulphates (persulphates). | | | | $86 | |
| Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates | | | $163 | | |
| Radioactive chemical elements and radioactive isotopes | | | | $101 | |
| Total | $264 | $3,219 | $2,166 | $5,431 | $3,348 |
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