| 2518.10 | 000 | Dolomite, not calcined or sintered |
| 2518.20 | 000 | Calcined or sintered dolomite |
| 2518.30 | 000 | Dolomite ramming mix |
| 25.19 | | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure |
| 2519.10 | 000 | Natural magnesium carbonate (magnesite) |
| 2519.90 | | Other |
| 2519.90 | 010 | - Magnesium oxide other than calcined natural magnesium carbonate |
| 2519.90 | | - Other |
| 2519.90 | 091 | -- Magnesia clinker |
| 2519.90 | 099 | -- Other |
| 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 | | Plasters |
| 2520.20 | 010 | 1 Calcined gypsum |
| 2520.20 | 090 | 2 Other |
| 25.21 | | |
| 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 |
| 2522.20 | 000 | Slaked lime |
| 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 |
| 2523.10 | 000 | Cement clinkers |
Harmonized Tariff Schedule of Japans inquiry: /etc/passwd
