| 2844.40 | 020 | -- Compounds of radioactive isotopes or alloys, dispersions (including cermets), ceramic products and mixtures containing these compounds |
| 2844.50 | 000 | Spent (irradiated) fuel elements (cartridges) of nuclear reactors |
| 28.45 | | Isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined |
| 28.46 | | Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals |
| 2846.10 | | Cerium compounds |
| 2847.00 | 000 | Hydrogen peroxide, whether or not solidified with urea |
| 28.49 | | Carbides, whether or not chemically defined |
| 2849.20 | | Of silicon |
| 2849.20 | 010 | - Sized grains |
| 2850.00 | 000 | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49 |
| 28.52 | | Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams |
| 2852.10 | 100 | 1 Certified reference materials |
| 2852.10 | | 2 Inorganic compounds and articles thereof: |
| 2852.10 | 210 | (1) Sulphates |
| 2852.10 | 220 | (2) Chemical preparations for photographic uses (other than varnishes, glues, adhesives and similar preparations) ; unmixed products for photographic uses, put up in measured portions or put up for retail sale in a form ready for use |
| 2852.10 | 291 | - Mercury carbides |
| 2852.10 | | 3 Organic compounds and articles thereof: |
| 2852.10 | | (1) Tanning extracts of vegetable origin; tannins and their salts, ethers, esters and other derivatives: |
| 2852.10 | 911 | A Tannins and their derivatives |
| 2852.10 | 920 | (2) Albuminoidal substances and their derivatives, excluding albuminates and other albumin derivatives |
| 2852.90 | | 1 Inorganic compounds and articles thereof: |
| 2852.90 | 110 | (1) Polysulphides |
| 2852.90 | | 2 Organic compounds and articles thereof: |
Harmonized Tariff Schedule of Japans inquiry: 59-0004
