| 28.39 | | Silicates; commercial alkali metal silicates. | | | |
| 2839.11.00 | 00 | Silicates; commercial alkali metal silicates. - Of sodium: - Sodium metasilicates | KGM | Free | CCCT, LDCT |
| 2839.19.00 | 00 | Silicates; commercial alkali metal silicates. - Of sodium: - Other | KGM | Free | CCCT, LDCT |
| 2839.90 | | Silicates; commercial alkali metal silicates. - Other | | | |
| 2839.90.10 | 00 | Silicates; commercial alkali metal silicates. - Other - Of potassium | KGM | Free | CCCT, LDCT |
| 2839.90.90 | 00 | Silicates; commercial alkali metal silicates. - Other - Other | 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. | | | |
| 2841.30.00 | 00 | Salts of oxometallic or peroxometallic acids. - Sodium dichromate | KGM | Free | CCCT, LDCT |
| 2841.50.00 | 00 | Salts of oxometallic or peroxometallic acids. - Other chromates and dichromates; peroxochromates | KGM | Free | CCCT, LDCT |
| 2841.61.00 | 00 | Salts of oxometallic or peroxometallic acids. - Manganites, manganates and permanganates: - Potassium permanganate | KGM | Free | CCCT, LDCT |
| 2841.69.00 | 00 | Salts of oxometallic or peroxometallic acids. - Manganites, manganates and permanganates: - Other | KGM | Free | CCCT, LDCT |
| 2841.70.00 | 00 | Salts of oxometallic or peroxometallic acids. - Molybdates | KGM | Free | CCCT, LDCT |
| 2841.80.00 | 00 | Salts of oxometallic or peroxometallic acids. - Tungstates (wolframates) | KGM | Free | CCCT, LDCT |
| 2841.90.00 | 00 | Salts of oxometallic or peroxometallic acids. - Other | KGM | Free | CCCT, LDCT |
| 28.42 | | Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides. | | | |
| 2842.10.00 | 00 | Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides. - Double or complex silicates, including aluminosilicates whether or not chemically defined | KGM | Free | CCCT, LDCT |
| 2842.90.00 | | Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides. - Other | KGM | Free | CCCT, LDCT |
| 2842.90.00 | 10 | Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides. - Other - Ammonium nickel sulphate | KGM | Free | CCCT, LDCT |
| 2842.90.00 | 20 | Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides. - Other - Sodium selenite | KGM | Free | CCCT, LDCT |
| 2842.90.00 | 30 | Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides. - Other - Ammonium zinc chloride | KGM | Free | CCCT, LDCT |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
