N-Methylperfluorooctane Sulfonamido Ethanol (MeFOSE) from Mexico
MeFOSE is a key building block for producing fluorochemical polymers used in surface treatments. Classified under HTS 2935.50.00.00 as it is chemically defined perfluorooctane sulfonamide alcohol.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Maintain cold chain documentation (<10°C) to preserve alcohol functionality
• Declare polymerization inhibitor content to avoid Chapter 39 pre-polymer classification
• Comply with Stockholm Convention documentation for POPs-exempt C8 chemistry