| 2520.20 | 090 | 2 Other |
| 2521.00 | 000 | Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement |
| 25.22 | | Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 28.25 |
| 2522.30 | 000 | Hydraulic lime |
| 25.23 | | Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers |
| 2523.21 | 000 | White cement, whether or not artificially coloured |
| 2523.29 | 000 | Other |
| 2523.90 | 000 | Other hydraulic cements |
| 2524.90 | 000 | Other |
| 2525.10 | 000 | Crude mica and mica rifted into sheets or splittings |
| 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 |
| 2529.21 | 000 | Containing by weight 97% or less of calcium fluoride |
| 2529.22 | 000 | Containing by weight more than 97% of calcium fluoride |
| 2529.30 | 000 | Leucite; nepheline and nepheline syenite |
| 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, other than roasted iron pyrites |
Harmonized Tariff Schedule of Japans inquiry: /etc/passwd
