Polytetramethylene Ether Glycol (PTMEG) from Mexico
PTMEG is a liquid polyether polyol in primary form, classified in HTS 3907.29.00.00 as other polyethers with tetrahydrofuran-derived ether units comprising over 95% by weight. It serves as a key intermediate for spandex fibers and polyurethane elastomers.
Duty Rate — Mexico → United States
16.5%
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
• Include monomer weight percentage certification; PTMEG must meet 95% ether unit threshold
• Ship in industrial drums/barrels marked 'not for consumer use' to prevent 3923 packaging misclassification
• Beware bulk vs packaged; retail packs may fall under 3923.10 if <38.1cm dimensions per US note