| 2506.10.00 | 00 | 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. | TNE | Free | CCCT, LDCT |
| 2506.20.00 | 00 | Quartzite: - 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. | TNE | Free | CCCT, LDCT |
| 2508.40.00 | | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths. | KGM | Free | CCCT, LDCT |
| 2508.40.00 | 10 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths.
- Common blue clay and other ball clays | KGM | | |
| 2508.40.00 | 91 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths.
- Other: - Of a kind used for animal litter | KGM | | |
| 2508.40.00 | 99 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths.
- Other: - Other | KGM | | |
| 2523.30.00 | 00 | Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers. | TNE | Free | CCCT, LDCT |
| 2523.90.00 | | Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers. | TNE | Free | CCCT, LDCT |
| 2523.90.00 | 90 | Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers. - Other | TNE | | |
| 2508.50.00 | | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths. | KGM | Free | CCCT, LDCT |
| 2508.50.00 | 10 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths.
- Andalusite | KGM | | |
| 2508.50.00 | 20 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths.
- Kyanite | KGM | | |
| 2508.50.00 | 30 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths.
- Sillimanite | KGM | | |
| 2508.70.00 | | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths. | KGM | Free | CCCT, LDCT |
| 2508.70.00 | 10 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths.
- Chamotte earth | KGM | | |
| 2508.70.00 | 20 | Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths.
- Dinas earth | KGM | | |
| 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 | | |
| 25.15 | | Marble, travertine, ecaussine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and alabaster, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape. | | | |
| 2515.11.00 | 00 | Marble and travertine: - Marble, travertine, ecaussine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and alabaster, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape. | TNE | Free | CCCT, LDCT |
| 2515.12.00 | 00 | Marble and travertine: - Marble, travertine, ecaussine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and alabaster, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape. | TNE | Free | CCCT, LDCT |
| 2515.20.00 | | Marble, travertine, ecaussine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and alabaster, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape. | TNE | Free | CCCT, LDCT |
| 2524.10.00 | 00 | Asbestos. | TNE | Free | CCCT, LDCT |
| 2524.90.00 | 00 | Asbestos. | TNE | Free | CCCT, LDCT |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
