2846.90.20 - Mixtures of rare-earth oxides or of rare-earth chlorides

This HTS category, 2846.90.20, specifically addresses mixtures of rare-earth oxides or rare-earth chlorides. These are chemical compounds containing two or more different rare-earth elements, presented in a combined form rather than as individual pure compounds. The "mixtures" aspect is crucial, distinguishing these goods from single rare-earth compounds which would be classified elsewhere. This classification is a sub-division within the broader scope of inorganic compounds of rare-earth metals.

The "Other" designation at this level signifies that these mixtures do not fall under any more specific sub-classifications within rare-earth compounds that are not oxides or chlorides, nor are they singular rare-earth oxides or chlorides. The parent category covers a wide range of inorganic and organic compounds of rare-earth metals, yttrium, and scandium, or their mixtures. This particular code isolates the specific scenario where multiple rare-earth elements are combined in the form of oxides or chlorides.

Within this broad category of mixtures, two further subcategories exist to provide finer detail. These are "Rare-earth oxides except cerium oxides" and "Rare-earth chlorides except cerium chlorides." This indicates that while the primary goods are mixtures of oxides or chlorides, a distinction is made based on the specific rare-earth elements present. This allows for more precise tariff application, likely due to differing trade patterns or regulatory considerations for goods that may or may not contain cerium in its oxide or chloride form within these mixtures.