Lanthanum-Dominant Rare Earth Oxide Mixture
A chemically defined mixture of rare-earth oxides where lanthanum oxide (La2O3) is the predominant component, typically containing 40-60% lanthanum oxide alongside smaller amounts of neodymium, praseodymium, and cerium oxides. This product falls under HTS 2846.90.20.05 as it is a mixture of rare-earth oxides (excluding cerium oxides as predominant) with lanthanum as the main metal. Used primarily in ceramics, glass polishing, and as a precursor for catalysts.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If 99% pure lanthanum oxide without other rare-earths
Pure, unmixed compounds of individual rare-earth metals like lanthanum oxide classify under specific headings, not mixtures.
If packaged as retail consumer product under 1kg
Retail-packaged rare-earth oxide mixtures shift to 'Other' subheading due to packaging for direct sale rather than industrial bulk.
If chemically modified with organic stabilizers
Organo-inorganic mixtures or chemically defined reaction products fall under Chapter 38 prepared chemicals, per Chapter 28 Note 2(b).
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Import Tips & Compliance
• Verify composition certificate from supplier confirming lanthanum >50% of rare-earth content to avoid reclassification to 2846.90.20.15 (cerium-dominant)
• Include assay reports and SDS for CBP review; ensure packaging prevents moisture absorption which could alter oxide purity
Related Products under HTS 2846.90.20.05
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. Classified under HTS 2846.90.20.05 as a rare-earth oxide mixture excluding cerium oxides with lanthanum as the primary metal. Ideal for high-refractive index glass production.
Lanthanum Predominant REO for Ceramic Scintillators
Specialty rare-earth oxide blend (La 60%, Gd 25%, Eu 15%) optimized for scintillator ceramics in medical imaging, classified as lanthanum-dominant mixture excluding cerium oxides under HTS 2846.90.20.05.
High-Purity Lanthanum-Rich Mischmetal Oxide
Refined oxide mixture from mischmetal processing with lanthanum oxide at 55%, didymium oxides (Nd/Pr) 35%, and traces of samarium/gadolinium, excluding cerium. HTS 2846.90.20.05 applies to such lanthanum-predominant rare-earth oxide mixtures used in hydrogen storage alloys and phosphors.
Didymium Oxide with Lanthanum Enrichment
Enriched didymium oxide where lanthanum content selectively increased to 52% (Nd 30%, Pr 15%, others 3%), used in fiber optic amplifiers, fitting HTS 2846.90.20.05 for lanthanum-predominant rare-earth oxide mixtures.