| 2523.90.00 | 40 | Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers. - Supersulphated cement | TNE | | |
| 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 | | |
| 2529.22.00 | 00 | Fluorspar: - Feldspar; leucite; nepheline and nepheline syenite; fluorspar. | TNE | Free | CCCT, LDCT |
| 2529.30.00 | 00 | Feldspar; leucite; nepheline and nepheline syenite; fluorspar. | TNE | Free | CCCT, LDCT |
| 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 |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
