| 2512.00.00 | | Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less. | KGM | Free | CCCT, LDCT |
| 2512.00.00 | 10 | Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less. - Diatomaceous earth | KGM | | |
| 2512.00.00 | 90 | Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less. - Other | KGM | | |
| 3802.90.00 | 40 | Activated carbon; activated natural mineral products; animal black, including spent animal black. - Other - Activated diatomite | KGM | Free | CCCT, LDCT |
| 6901.00.00 | 00 | Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals (for example, kieselguhr, tripolite or diatomite) or of similar siliceous earths. | TNE | Free | CCCT, LDCT |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
