| 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 |
| 28.46 | Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals: |
| 2846.10 | －Cerium compounds |
|