| 2508 | | Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths: | | | | |
| 6806 | | Slag wool, rock wool and similar mineral wools; exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials; mixtures and articles of heat-insulating, sound-insulating or sound-absorbing mineral materials, other than those of heading 6811 or 6812, or of chapter 69: | | | | |
| 6806.10.00 | | Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls | | 3.9% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 30% |
| 6806.10.00 | 10 | Accoustical pads and boards | m2 | | | |
| 6806.10.00 | 20 | Other: | | | | |
| 6806.10.00 | 20 | Batts, not exceeding 61 cm in width | m2 | | | |
| 6806.10.00 | 40 | Batts, exceeding 61 cm in width | m2 | | | |
| 6806.10.00 | 60 | Pipe coverings | X | | | |
| 6806.10.00 | 90 | Other | X | | | |
| 6806.20.00 | 00 | Exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof) | kg | Free | | 30% |
| 6806.90.00 | | Other | | Free | | 30% |
| 6806.90.00 | 10 | Accoustical pads and boards | m2 | | | |
| 6806.90.00 | 20 | Other: | | | | |
| 6806.90.00 | 20 | Of molded calcium silicate | X | | | |
| 6806.90.00 | 90 | Other | X | | | |
