| 2608.00.00 | 10 | Zinc ores and concentrates. - Copper content | KGM | | |
| 2608.00.00 | 20 | Zinc ores and concentrates. - Lead content | KGM | | |
| 2608.00.00 | 30 | Zinc ores and concentrates. - Zinc content | KGM | | |
| 2608.00.00 | 82 | Zinc ores and concentrates. - Precious metal content: - Gold content | GRM | | |
| 2608.00.00 | 90 | Zinc ores and concentrates. - Other | KGM | | |
| 2609.00.00 | 00 | Tin ores and concentrates. | KGM | Free | CCCT, LDCT |
| 2610.00.00 | | Chromium ores and concentrates. | KGM | Free | CCCT, LDCT |
| 25.05 | | Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26. | | | |
| 2505.10.00 | | Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26. | TNE | Free | CCCT, LDCT |
| 2505.10.00 | 10 | Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26. - Of a kind used in foundries | TNE | | |
| 2505.10.00 | 30 | Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26. - Fracturing sand | TNE | | |
| 2505.90.00 | | Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26. | TNE | Free | CCCT, LDCT |
| 2505.90.00 | 10 | Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26. - Olivine sand | TNE | | |
| 2505.90.00 | 90 | Natural sands of all kinds, whether or not coloured, other than metal-bearing sands of Chapter 26. - Other | TNE | | |
| 2610.00.00 | 90 | Chromium ores and concentrates. - Other | KGM | | |
| 2611.00.00 | 00 | Tungsten ores and concentrates. | KGM | Free | CCCT, LDCT |
| 26.12 | | Uranium or thorium ores and concentrates. | | | |
| 2603.00.00 | 81 | Copper ores and concentrates. - Precious metal content: - Silver content | GRM | | |
| 2603.00.00 | 82 | Copper ores and concentrates. - Precious metal content: - Gold content | GRM | | |
| 2603.00.00 | 90 | Copper ores and concentrates. - Other | KGM | | |
| 2604.00.00 | | Nickel ores and concentrates. | KGM | Free | CCCT, LDCT |
| 2620.11.00 | 00 | Slag, ash and residues (other than from the manufacture of iron or steel) containing metals, arsenic or their compounds. - Containing mainly zinc: - Hard zinc spelter | KGM | Free | CCCT, LDCT |
| 2620.21.00 | 00 | Slag, ash and residues (other than from the manufacture of iron or steel) containing metals, arsenic or their compounds. - Containing mainly lead: - Leaded gasoline sludges and leaded anti-knock compound sludges | KGM | Free | CCCT, LDCT |
| 2620.60.00 | 00 | Slag, ash and residues (other than from the manufacture of iron or steel) containing metals, arsenic or their compounds. - Containing arsenic, mercury, thallium or their mixtures, of a kind used for the extraction of arsenic or those metals or for the manufacture of their chemical compounds | KGM | Free | CCCT, LDCT |
| 2620.91.00 | 00 | Slag, ash and residues (other than from the manufacture of iron or steel) containing metals, arsenic or their compounds. - Other: - Containing antimony, beryllium, cadmium, chromium or their mixtures | KGM | Free | CCCT, LDCT |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
