Lanthanum-Dominant Didymium Carbonate Mixture from Mexico
Didymium carbonate blend with lanthanum as chief component (La/Pr/Nd mix), used in glass coloring and decolorizing agents, fitting Chapter 28 inorganic rare-earth compounds. Under HTS 2846.90.80.70 for non-cerium rare-earth carbonate mixtures. White microcrystalline powder.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Submit compositional breakdown via ICP-MS reports; ensure no radioactive impurities per 2844 notes
• Common error: classifying as complex salts (2842)