Chromium Oxide Polymer Catalyst from Mexico
Phillips catalyst (CrO3 on silica) precursor for HDPE production. Wholly inorganic composition under HTS 3815.90.3000.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Cr loading (1-5wt%) and activation procedure documentation essential
• Hexavalent Cr-free declaration prevents REACH restrictions
• Silica support ratio affects whether classified as chromium or silica product