| 250200 | -Unroasted iron pyrites |
| 250300 | -Sulphur of all kinds, other than sublimed sulphur, precipitated sulphur and colloidal sulphur |
| 250410 | Natural graphite-In powder or in flakes |
| 250490 | Natural graphite-Other |
| 250510 | Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26-Silica sands and quartz sands |
| 250590 | Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26-Other |
| 250610 | Quartz (other than natural sands); quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape-Quartz |
| 250620 | Quartz (other than natural sands); quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape-Quartzite |
| 250700 | -Kaolin and other kaolinic clays, whether or not calcined |
| 250810 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths-Bentonite |
| 250830 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths-Fire-clay |
| 250840 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths-Other clays |
| 250850 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths-Andalusite, kyanite and sillimanite |
| 250860 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths-Mullite |
| 250870 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths-Chamotte or dinas earths |
