| 6909.11 | | Of porcelain or china |
| 6909.11 | 010 | - Catalyst carriers, intended for use in manufacturing catalyst |
| 6909.11 | 020 | - Other |
| 6909.12 | | Articles having a hardness equivalent to 9 or more on the Mohs scale |
| 6909.12 | 010 | - Catalyst carriers, intended for use in manufacturing catalyst |
| 6909.12 | 020 | - Other |
| 6909.19 | | Other |
| 6909.19 | 010 | - Catalyst carriers, intended for use in manufacturing catalyst |
| 6909.19 | 020 | - Other |
| 6909.90 | 000 | Other |
