| 28.45 | | Isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined. | | | |
| 2845.90.00 | 00 | Isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined.
- Other | KGM | Free | CCCT, LDCT |
| 2843.90.00 | 00 | Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals. - Other compounds; amalgams | KGM | Free | CCCT, LDCT |
| 28.44 | | Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products. | | | |
| 2844.10.00 | 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. - Natural uranium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing natural uranium or natural uranium compounds | KGM | Free | CCCT, LDCT |
| 2844.20.00 | 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. - Uranium enriched in U235 and its compounds; plutonium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium enriched in U235, plutonium or compounds of these products | KGM | Free | CCCT, LDCT |
| 2844.30.00 | 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. - Uranium depleted in U235 and its compounds; thorium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium depleted in U235, thorium or compounds of these products | KGM | Free | CCCT, LDCT |
| 2844.40.00 | | Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products. - 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 | MBQ | Free | CCCT, LDCT |
| 2844.40.00 | 10 | 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
- Radioactive elements and isotopes and compounds: - Radioactive elements and isotopes, their compounds | MBQ | Free | CCCT, LDCT |
| 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 |
| 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 |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
