Ethylene Chlorotrifluoroethylene Copolymer (ECTFE) from Mexico
ECTFE is a copolymer fluoropolymer primarily from chlorotrifluoroethylene and ethylene, classified in HTS 3904.69.5000 as other fluoropolymers in primary forms. It qualifies per notes if comonomer units meet the 95% contribution threshold.
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 copolymer ratio documentation showing predominant halogenated olefin content
• Avoid bulk packaging that suggests finished goods; use industrial pellet bags