| 2844.40.00 | 90 | Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products. - Radioactive elements and isotopes and compounds other than those of subheading 2844.10, 2844.20 or 2844.30; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds; radioactive residues
- Other | - | Free | CCCT, LDCT |
| 28.46 | | Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals. | | | |
| 2846.10.00 | 00 | Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals. - Cerium compounds | KGM | Free | CCCT, LDCT |
| 2846.90.00 | 00 | Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals. - Other | KGM | Free | CCCT, LDCT |
| 2844.50.00 | 00 | Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products. - Spent (irradiated) fuel elements (cartridges) of nuclear reactors | KGM | Free | CCCT, LDCT |
| 2845.10.00 | 00 | Isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined.
- Heavy water (deuterium oxide) | KGM | Free | CCCT, LDCT |
| 2848.00.00 | 00 | Phosphides, whether or not chemically defined, excluding ferrophosphorus. | KGM | Free | CCCT, LDCT |
| 28.49 | | Carbides, whether or not chemically defined. | | | |
| 2849.10.00 | 00 | Carbides, whether or not chemically defined. - Of calcium | KGM | Free | CCCT, LDCT |
| 2849.20.00 | 00 | Carbides, whether or not chemically defined. - Of silicon | KGM | Free | CCCT, LDCT |
| 2849.90.00 | | Carbides, whether or not chemically defined. - Other | KGM | Free | CCCT, LDCT |
| 2849.90.00 | 10 | Carbides, whether or not chemically defined. - Other - Tungsten carbide | KGM | Free | CCCT, LDCT |
| 2850.00.00 | 10 | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49.
- Nitrides | KGM | Free | CCCT, LDCT |
| 2850.00.00 | 90 | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49.
- Other | KGM | Free | CCCT, LDCT |
| 28.52 | | Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams. | | | |
| 2852.10.00 | 00 | Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams. - Chemically defined | KGM | Free | CCCT, LDCT |
| 2852.90 | | Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams. - Other | | | |
| 2852.90.10 | 00 | Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams. - Other - Mercury albuminate;
Nucleoproteids of mercury | KGM | 6.5% | CCCT, LDCT |
| 2852.90.90 | 00 | Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams. - Other - Other | KGM | Free | CCCT, LDCT |
| 2853.00.00 | 00 | Other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals. | KGM | Free | CCCT, LDCT |
| 2901.29.00 | 11 | Acyclic hydrocarbons. - Unsaturated: - Other - Linear alpha olefins, unmixed: - 1-octene | KGM | Free | CCCT, LDCT |
| 2901.29.00 | 12 | Acyclic hydrocarbons. - Unsaturated: - Other - Linear alpha olefins, unmixed: - 1-hexene | KGM | Free | CCCT, LDCT |
| 2901.29.00 | 19 | Acyclic hydrocarbons. - Unsaturated: - Other - Linear alpha olefins, unmixed: - Other | KGM | Free | CCCT, LDCT |
| 2902.90.00 | 30 | Cyclic hydrocarbons. - Other - Naphthalene | KGM | Free | CCCT, LDCT |
| 29.03 | | Halogenated derivatives of hydrocarbons. | | | |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
