| 28.06 | | Hydrogen chloride (hydrochloric acid); chlorosulphuric acid. | | | |
| 2806.10.00 | 00 | Hydrogen chloride (hydrochloric acid); chlorosulphuric acid. - Hydrogen chloride (hydrochloric acid) | KGM | Free | CCCT, LDCT |
| 2806.20.00 | 00 | Hydrogen chloride (hydrochloric acid); chlorosulphuric acid. - Chlorosulphuric acid | KGM | Free | CCCT, LDCT |
| 2807.00.00 | 00 | Sulphuric acid; oleum. | KGM | Free | CCCT, LDCT |
| 28.09 | | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. | | | |
| 2809.10.00 | 00 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Diphosphorus pentaoxide | KGM | Free | CCCT, LDCT |
| 2809.20.00 | | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids | KGM | Free | CCCT, LDCT |
| 2809.20.00 | 11 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids - Phosphoric acids, fertilizer grade: - Superacid grade (68-72% P2O5) | KGM | Free | CCCT, LDCT |
| 2809.20.00 | 19 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids - Phosphoric acids, fertilizer grade: - Other | KGM | Free | CCCT, LDCT |
| 2809.20.00 | 20 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids - Other phosphoric acids | KGM | Free | CCCT, LDCT |
| 2809.20.00 | 30 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids - Polyphosphoric acids | KGM | Free | CCCT, LDCT |
| 2810.00.00 | 00 | Oxides of boron; boric acids. | KGM | Free | CCCT, LDCT |
| 28.11 | | Other inorganic acids and other inorganic oxygen compounds of non-metals. | | | |
| 2811.11.00 | 00 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic acids: - Hydrogen fluoride (hydrofluoric acid) | KGM | Free | CCCT, LDCT |
| 2811.19.00 | 00 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic acids: - Other | KGM | Free | CCCT, LDCT |
| 2811.21.00 | 00 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Carbon dioxide | KGM | Free | CCCT, LDCT |
| 2811.22.00 | | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Silicon dioxide | KGM | Free | CCCT, LDCT |
| 27.13 | | Petroleum coke, petroleum bitumen and other residues of petroleum oils or of oils obtained from bituminous minerals. | | | |
| 2713.11.00 | 00 | Petroleum coke, petroleum bitumen and other residues of petroleum oils or of oils obtained from bituminous minerals. - Petroleum coke: - Not calcined | TNE | Free | CCCT, LDCT |
| 2713.12.00 | 00 | Petroleum coke, petroleum bitumen and other residues of petroleum oils or of oils obtained from bituminous minerals. - Petroleum coke: - Calcined | TNE | Free | CCCT, LDCT |
| 2712.90.00 | 90 | Petroleum jelly; paraffin wax, micro-crystalline petroleum wax, slack wax, ozokerite, lignite wax, peat wax, other mineral waxes, and similar products obtained by synthesis or by other processes, whether or not coloured. - Other - Other | KGM | | |
| 2713.20.00 | 10 | Petroleum coke, petroleum bitumen and other residues of petroleum oils or of oils obtained from bituminous minerals. - Petroleum bitumen - Asphaltum oil, of a kind used for paving purposes | KGM | | |
| 2713.90.00 | 00 | Petroleum coke, petroleum bitumen and other residues of petroleum oils or of oils obtained from bituminous minerals. - Other residues of petroleum oils or of oils obtained from bituminous minerals | KGM | Free | CCCT, LDCT |
| 2715.00.00 | | Bituminous mixtures based on natural asphalt, on natural bitumen, on petroleum bitumen, on mineral tar or on mineral tar pitch (for example, bituminous mastics, cut-backs). | KGM | Free | CCCT, LDCT |
| 2715.00.00 | 10 | Bituminous mixtures based on natural asphalt, on natural bitumen, on petroleum bitumen, on mineral tar or on mineral tar pitch (for example, bituminous mastics, cut-backs). - Bituminous mastics | KGM | | |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
