| 28.05 | | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury |
| 28.05 | | Alkali or alkaline-earth metals |
| 2805.19 | 000 | Other |
| 2805.30 | 000 | Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed |
| 2805.40 | | II.- INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS |
| 2808.00 | 000 | Nitric acid; sulphonitric acids |
| 28.09 | | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined |
| 2809.10 | 000 | Diphosphorus pentaoxide |
| 28.11 | | Other inorganic acids and other inorganic oxygen compounds of non-metals |
| 28.11 | | Other inorganic acids |
| 2811.19 | | Other |
| 2811.19 | 900 | - Other |
| 2811.19 | | Other inorganic oxygen compounds of non-metals : |
| 2811.29 | | Other |
| 2811.29 | | 1 Dinitrogen tetroxide and Sulphur dioxide |
| 2811.29 | 110 | - Dinitrogen tetroxide |
| 2811.29 | 900 | 2 Other |
| 2811.29 | | III.- HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS |
| 28.12 | | Halides and halide oxides of non-metals |
| 2812.13 | 000 | Phosphorus trichloride |
| 2812.14 | 000 | Phosphorus pentachloride |
| 2812.17 | 000 | Thionyl chloride |
| 2812.19 | 000 | Other |