Mixed Heavy Rare Earth Oxide (HREO) Non-Cerium
Mixed heavy rare-earth oxides (HREO) excluding cerium, containing oxides of dysprosium, terbium, holmium, erbium, thulium, ytterbium, lutetium, and yttrium, are used in advanced magnet production. This mixture is classified under tariff item 2846.90.00 as a mixture of rare-earth metal oxides, not elsewhere specified.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the mixture contains cerium compounds
Cerium compounds are classified separately under 2846.10.
If the mixture is not a product of Chapter 28 but a chemical preparation
Mixtures of chemicals not elsewhere specified may fall under heading 38.24.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide a detailed breakdown of the oxide composition to CBSA to confirm classification
• Since this is a mixture, ensure it does not contain cerium, which would shift classification
• Check if the product qualifies for any free trade agreement preferential treatment
Related Products under Tariff item 2846.90.00
Cerium and Lanthanum Oxide Mixture
A homogeneous mixture of cerium oxide (CeO2) and lanthanum oxide (La2O3), both rare-earth oxides, used in catalytic converters and glass polishing. This product is a compound of rare-earth metals and falls under tariff item 2846.90.00 as an 'other' rare-earth compound.
Cerium-Lanthanum Chloride Mixture
An anhydrous blend of cerium chloride (CeCl3) and lanthanum chloride (LaCl3) used as a precursor in chemical synthesis and catalyst production. This mixture of rare-earth metal chlorides falls under tariff item 2846.90.00 as a compound of rare-earth metals, not elsewhere specified.
Didymium Oxide with Lanthanum Enrichment
An enriched didymium oxide where lanthanum content is selectively increased to 52% (neodymium 30%, praseodymium 15%, others 3%), used in fiber optic amplifiers. This lanthanum-predominant rare-earth oxide mixture falls under tariff item 2846.90.00 as a compound of rare-earth metals.
Dysprosium Oxide (Dy2O3) Technical Grade
Technical grade dysprosium oxide (Dy2O3) used in permanent magnets and laser materials. This chemically defined rare-earth oxide of dysprosium is classifiable under 2846.90.00, excluding cerium compounds per subheading notes.
Dysprosium-Terbium Chloride Mixture
A mixture of dysprosium chloride (DyCl3) and terbium chloride (TbCl3) used in magneto-optic applications. This combination of rare-earth metal chlorides is classified under tariff item 2846.90.00 as a compound of rare-earth metals, not elsewhere specified.
Erbium Oxide (Er2O3) 99.9% Pure
Erbium oxide (Er2O3) at 99.9% purity for fiber optic amplifiers and pink glass coloring. This chemically defined rare-earth oxide of erbium is classifiable under 2846.90.00, excluding cerium compounds.