| 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 | | |
| 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 | | |
| 25.19 | | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure. | | | |
| 2519.10.00 | 00 | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure. | KGM | Free | CCCT, LDCT |
| 2519.90.00 | | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure. | KGM | Free | CCCT, LDCT |
| 2519.90.00 | 11 | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure. - Magnesium oxide, not less than 94% pure: - Dead-burned (sintered) | KGM | | |
| 25.26 | | Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc. | | | |
| 2526.10.00 | 00 | Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc. | TNE | Free | CCCT, LDCT |
| 2519.90.00 | 13 | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure. - Magnesium oxide, not less than 94% pure: - Caustic burned | KGM | | |
| 2519.90.00 | 19 | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure. - Magnesium oxide, not less than 94% pure: - Other | KGM | | |
| 2519.90.00 | 90 | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure. - Other: - Other | KGM | | |
| 2526.20.00 | | Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc. | TNE | Free | CCCT, LDCT |
| 2526.20.00 | 10 | Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc. - Talc of a particle size not exceeding 20 microns | TNE | | |
| 2526.20.00 | 90 | Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc. - Other | TNE | | |
| 2528.00.00 | 00 | Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85% of H3BO3 calculated on the dry weight. | KGM | Free | CCCT, LDCT |
| 2707.40.00 | 00 | Oils and other products of the distillation of high temperature coal tar; similar products in which the weight of the aromatic constituents exceeds that of the non-aromatic constituents. - Naphthalene | LTR | Free | CCCT, LDCT |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
