| 2803.00 | 000 | Carbon (carbon blacks and other forms of carbon not elsewhere specified or included) |
| 28.04 | | Hydrogen, rare gases and other non-metals |
| 2804.10 | | Rare gases |
| 2804.21 | 000 | Argon |
| 2804.61 | | Containing by weight not less than 99.99 % of silicon |
| 2804.61 | 100 | 1 Of single crystal |
| 2804.80 | 000 | Arsenic |
| 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 |
| 2805.12 | 000 | Calcium |
| 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 |
| 28.06 | | Hydrogen chloride (hydrochloric acid); chlorosulphuric acid |
| 2806.10 | 000 | Hydrogen chloride (hydrochloric acid) |
| 2806.20 | 000 | Chlorosulphuric acid |
| 2807.00 | 000 | Sulphuric acid; oleum |
| 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 |
| 2809.20 | 000 | Phosphoric acid and polyphosphoric acids |
| 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 |
Harmonized Tariff Schedule of Japans inquiry: C
