| 2507.00 | 000 | Kaolin and other kaolinic clays, whether or not calcined |
| 25.08 | | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths |
| 25.11 | | Natural barium sulphate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 28.16 |
| 2512.00 | 000 | Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less |
| 25.18 | | Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; dolomite ramming mix |
| 2518.10 | 000 | Dolomite, not calcined or sintered |
| 2518.20 | 000 | Calcined or sintered dolomite |
| 2519.90 | 010 | - Magnesium oxide other than calcined natural magnesium carbonate |
| 25.20 | | Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate) whether or not coloured, with or without small quantities of accelerators or retarders: |
| 2520.20 | 010 | 1 Calcined gypsum |
| 2528.00 | 000 | Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85% of H3BO3 calculated on the dry weight |
| 2713.11 | 000 | Not calcined |
| 2713.12 | 000 | Calcined |
| 3407.00 | 000 | Modelling pastes, including those put up for children's amusement; preparations known as “dental wax” or as “dental impression compounds”, put up in sets, in packings for retail sale or in plates, horseshoe shapes, sticks or similar forms; other preparations for use in dentistry, with a basis of plaster (of calcined gypsum or calcium sulphate). |
Harmonized Tariff Schedule of Japans inquiry: The
