| 2805.11.00 | 00 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury. - Alkali or alkaline-earth metals: - Sodium | KGM | Free | CCCT, LDCT |
| 2804.21.00 | 00 | Hydrogen, rare gases and other non-metals. - Rare gases: - Argon | KGM | Free | CCCT, LDCT |
| 2804.29.00 | | Hydrogen, rare gases and other non-metals. - Rare gases: - Other | KGM | Free | CCCT, LDCT |
| 2804.29.00 | 10 | Hydrogen, rare gases and other non-metals. - Rare gases: - Other - Helium | KGM | Free | CCCT, LDCT |
| 2804.61.00 | 00 | Hydrogen, rare gases and other non-metals. - Silicon: - Containing by weight not less than 99.99% of silicon | KGM | Free | CCCT, LDCT |
| 2804.69.00 | 00 | Hydrogen, rare gases and other non-metals. - Silicon: - Other | KGM | Free | CCCT, LDCT |
| 28.05 | | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury. | | | |
| 2505.10.00 | 90 | Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26. - Other: - Other | TNE | | |
| 2604.00.00 | 83 | Nickel ores and concentrates. - Precious metal content: - Platinum group metal content | GRM | | |
| 2608.00.00 | 81 | Zinc ores and concentrates. - Precious metal content: - Silver content | GRM | | |
| 2616.10.00 | 30 | Precious metal ores and concentrates. - Silver ores and concentrates - Zinc content | KGM | | |
| 2616.10.00 | 90 | Precious metal ores and concentrates. - Silver ores and concentrates - Other | KGM | | |
| 2620.29.00 | 00 | Slag, ash and residues (other than from the manufacture of iron or steel) containing metals, arsenic or their compounds. - Containing mainly lead: - Other | KGM | Free | CCCT, LDCT |
| 2804.10.00 | 00 | Hydrogen, rare gases and other non-metals. - Hydrogen | KGM | Free | CCCT, LDCT |
| 2811.29.00 | 00 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Other | KGM | Free | CCCT, LDCT |
| 2825.20.00 | | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Lithium oxide and hydroxide | KGM | Free | CCCT, LDCT |
| 2825.50.00 | 00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Copper oxides and hydroxides | KGM | Free | CCCT, LDCT |
| 28.25 | | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. | | | |
| 2825.30.00 | 00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Vanadium oxides and hydroxides | KGM | Free | CCCT, LDCT |
| 2825.40.00 | 00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Nickel oxides and hydroxides | KGM | Free | CCCT, LDCT |
| 2825.80.00 | 00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Antimony oxides | KGM | Free | CCCT, LDCT |
| 2825.90.00 | 00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Other | KGM | Free | CCCT, LDCT |
| 28.12 | | Halides and halide oxides of non-metals. | | | |
| 2812.10.00 | 00 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides | KGM | Free | CCCT, LDCT |
| 2812.90.00 | 00 | Halides and halide oxides of non-metals. - Other | KGM | Free | CCCT, LDCT |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
