Hydroxypropyl Methylcellulose Pellets from Mexico
Hydroxypropyl methylcellulose (HPMC) pellets serve as controlled-release agents in pharmaceuticals, a cellulose ether with mixed substituents. Falls under 3912.90.00.90 per subheading note (a)(4) based on predominant cellulose content.
Duty Rate — Mexico → United States
15.2%
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
• Submit DMF (Drug Master File) for pharma grades; confirm copolymer ratios <5% non-cellulose; use ventilated containers to maintain low humidity