| 2833.40.00 | 10 | Sulphates; alums; peroxosulphates (persulphates). - Peroxosulphates (persulphates) - Diammonium peroxodisulphate (ammonium persulphate) | KGM | Free | CCCT, LDCT |
| 2833.40.00 | 20 | Sulphates; alums; peroxosulphates (persulphates). - Peroxosulphates (persulphates) - Dipotassium peroxodisulphate (potassium persulphate) | KGM | Free | CCCT, LDCT |
| 28.36 | | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. | | | |
| 2836.20.00 | | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Disodium carbonate | KGM | Free | CCCT, LDCT |
| 2836.20.00 | 90 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Disodium carbonate - Other | KGM | Free | CCCT, LDCT |
| 2836.30.00 | 00 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Sodium hydrogencarbonate (sodium bicarbonate) | KGM | Free | CCCT, LDCT |
| 2836.20.00 | 10 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Disodium carbonate - For use in refining minerals | KGM | Free | CCCT, LDCT |
| 2836.40.00 | 00 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Potassium carbonates | KGM | Free | CCCT, LDCT |
| 2836.50.00 | 00 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Calcium carbonate | KGM | Free | CCCT, LDCT |
| 2836.60.00 | 00 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Barium carbonate | KGM | Free | CCCT, LDCT |
| 2836.91.00 | | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Other: - Lithium carbonates | KGM | Free | CCCT, LDCT |
| 2836.91.00 | 10 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Other: - Lithium carbonates - Including pellets containing 95% or more by weight of lithium carbonates, for use in the manufacture of aluminum | KGM | Free | CCCT, LDCT |
| 2836.91.00 | 90 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Other: - Lithium carbonates - Other | KGM | Free | CCCT, LDCT |
| 2836.92.00 | 00 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Other: - Strontium carbonate | KGM | Free | CCCT, LDCT |
| 2836.99.00 | 00 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Other: - Other | KGM | Free | CCCT, LDCT |
| 28.37 | | Cyanides, cyanide oxides and complex cyanides. | | | |
| 2837.11.00 | 00 | Cyanides, cyanide oxides and complex cyanides. - Cyanides and cyanide oxides: - Of sodium | KGM | Free | CCCT, LDCT |
| 2837.19.00 | 00 | Cyanides, cyanide oxides and complex cyanides. - Cyanides and cyanide oxides: - Other | KGM | Free | CCCT, LDCT |
| 2837.20.00 | 00 | Cyanides, cyanide oxides and complex cyanides. - Complex cyanides | KGM | Free | CCCT, LDCT |
| 28.40 | | Borates; peroxoborates (perborates). | | | |
| 2840.11.00 | 00 | Borates; peroxoborates (perborates). - Disodium tetraborate (refined borax): - Anhydrous | KGM | Free | CCCT, LDCT |
| 2840.19.00 | 00 | Borates; peroxoborates (perborates). - Disodium tetraborate (refined borax): - Other | KGM | Free | CCCT, LDCT |
| 2840.20.00 | 00 | Borates; peroxoborates (perborates). - Other borates | KGM | Free | CCCT, LDCT |
| 2840.30.00 | 00 | Borates; peroxoborates (perborates). - Peroxoborates (perborates) | KGM | Free | CCCT, LDCT |
| 28.41 | | Salts of oxometallic or peroxometallic acids. | | | |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
