| 2523.29 | 000 | Other |
| 2523.30 | 000 | Aluminous cement |
| 2523.90 | 000 | Other hydraulic cements |
| 25.24 | | Asbestos |
| 2524.10 | 000 | Crocidolite |
| 2524.90 | 000 | Other |
| 2525.10 | 000 | Crude mica and mica rifted into sheets or splittings |
| 2525.20 | 000 | Mica powder |
| 25.26 | | Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc |
| 2526.10 | 000 | Not crushed, not powdered |
| 2526.20 | 000 | Crushed or powdered |
| 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 |
| 25.29 | | Feldspar; leucite; nepheline and nepheline syenite; fluorspar |
| 2529.10 | | Fluorspar |
| 2529.21 | 000 | Containing by weight 97% or less of calcium fluoride |
| 2529.22 | 000 | Containing by weight more than 97% of calcium fluoride |
| 25.30 | | Mineral substances not elsewhere specified or included |
| 2530.10 | 000 | Vermiculite, perlite and chlorites, unexpanded |
| 2530.20 | 000 | Kieserite, epsomite (natural magnesium sulphates) |
| 2530.90 | 000 | Other |
| 26.01 | | Iron ores and concentrates, including roasted iron pyrites: |
| 26.01 | | Iron ores and concentrates, other than roasted iron pyrites |
| 2601.11 | 000 | Non-agglomerated |
Harmonized Tariff Schedule of Japans inquiry: C
