| 2519.10 | 000 | Natural magnesium carbonate (magnesite) |
| 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: |
| 2520.10 | 000 | Gypsum; anhydrite |
| 2520.20 | 010 | 1 Calcined gypsum |
| 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 |
| 2522.10 | 000 | Quicklime |
| 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 |
| 2523.30 | 000 | Aluminous cement |
| 2523.90 | 000 | Other hydraulic cements |
| 25.25 | | Mica, including splittings; mica waste |
| 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 |
| 2529.10 | | 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 |
Harmonized Tariff Schedule of Japans inquiry: /etc/passwd
