| 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 |
| 28.26 | Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts: |
| －Fluorides: |
| 2826.19 | －－Other: |
| －－－Of ammonium |
|