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%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include copolymer ratio documentation showing predominant halogenated olefin content
• Avoid bulk packaging that suggests finished goods; use industrial pellet bags