| Tariff Classification |
| section 06 | Products of the chemical or allied industries |
| chapter 28 | Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes |
| 28.18 | Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide: |
| 2818.10 | －Artificial corundum, whether or not chemically defined |
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