Polybutylene Ether Pellets from Mexico
Polybutylene ether pellets are aliphatic polyethers derived from 1,4-butanediol, classified in HTS 3907.29.00.00 as other polyethers with >95% ether content by weight in primary form. Used in hot-melt adhesives and flexible tubing.
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
• Certify no plasticizer additives; 3920.43 notes impact classification if present
• Declare melt flow index to confirm processability as primary thermoplastic
• Separate from polyester PBT; ether vs ester distinction critical via spectroscopy