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.
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 |
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 certificate of analysis showing the lanthanum content to support classification
• Ensure the product is not a luminophore of heading 32.06
• Verify that the mixture is not put up for retail sale as a set, which could shift classification
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.
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.
High-Purity Lanthanum-Rich Mischmetal Oxide
A refined oxide mixture from mischmetal processing with lanthanum oxide at 55%, didymium oxides (neodymium/praseodymium) 35%, and traces of samarium/gadolinium, excluding cerium. This lanthanum-predominant rare-earth oxide mixture falls under tariff item 2846.90.00.
Holmium-Thulium Oxide Mixture
A heavy rare-earth oxide mixture of holmium oxide (Ho2O3) and thulium oxide (Tm2O3) used in laser applications. This product falls under tariff item 2846.90.00 as a compound of rare-earth metals, not elsewhere specified.
La2O3-Ne2O3-Pr6O11 Ternary Oxide Blend
A precisely blended mixture of lanthanum oxide (50%), neodymium oxide (30%), and praseodymium oxide (20%), engineered for optical glass doping where lanthanum predominates. This rare-earth oxide mixture falls under tariff item 2846.90.00 as a compound of rare-earth metals.