High-Purity Cerium Oxide 99.999% (5N) from Mexico
Ultra-high purity (5N) cerium oxide for semiconductor polishing slurries and optical coating deposition. Falls under HTS 2846.10.00.10 as chemically defined rare-earth oxide with minimal impurities (<10 ppm total). Critical for defect-free wafer processing.
Duty Rate — Mexico → United States
5.5%
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
• ICP-MS analysis certificate mandatory (<1ppm heavy metals); rejects common for inadequate purity proof
• Class 1000 cleanroom packaging required; static shielding prevents particle contamination
• ITAR/EAR screening for semiconductor end-use; declare wafer polishing application