| 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 |
| 2808.00.00 | 00 | Nitric acid; sulphonitric acids. | 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 |
| 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 | | |
| 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 | | |
| 2715.00.00 | 20 | 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). - Asphaltum oil, of a kind used for paving purposes | KGM | | |
| 2715.00.00 | 90 | 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). - Other | KGM | | |
| 2811.22.00 | 10 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Silicon dioxide - Hydrated silica | KGM | Free | CCCT, LDCT |
| 2815.12.00 | 00 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Sodium hydroxide (caustic soda): - In aqueous solution (soda lye or liquid soda) | KNS | Free | CCCT, LDCT |
| 2815.20.00 | 20 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Potassium hydroxide (caustic potash) - In aqueous solution | KNS | Free | CCCT, LDCT |
| 2818.20.00 | 10 | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide. - Aluminum oxide, other than artificial corundum - Alumina prepared for processing into aluminum | KGM | Free | CCCT, LDCT |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
