| 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 | 000 | Mercury |
| 2805.40 | | II.- INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS |
| 28.06 | | Hydrogen chloride (hydrochloric acid); chlorosulphuric acid |
| 2806.10 | 000 | Hydrogen chloride (hydrochloric acid) |
| 2807.00 | 000 | Sulphuric acid; oleum |
| 28.09 | | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined |
| 2809.10 | 000 | Diphosphorus pentaoxide |
| 2810.00 | 000 | Oxides of boron; boric acids |
| 28.11 | | Other inorganic acids and other inorganic oxygen compounds of non-metals |
| 28.11 | | Other inorganic acids |
| 2811.11 | 000 | Hydrogen fluoride (hydrofluoric acid) |
| 2811.12 | 000 | Hydrogen cyanide (hydrocyanic acid) |
| 2811.19 | | Other |
| 2811.19 | 900 | - Other |
| 2811.19 | | Other inorganic oxygen compounds of non-metals : |
| 2811.21 | 000 | Carbon dioxide |
| 2811.22 | 000 | Silicon dioxide |
| 2811.29 | | Other |
| 2811.29 | | 1 Dinitrogen tetroxide and Sulphur dioxide |
| 2811.29 | 110 | - Dinitrogen tetroxide |
Harmonized Tariff Schedule of Japans inquiry: 51412019l307764784
