Perfluoropentene (C5F10) from China
Perfluoropentene serves as a specialty gas for plasma cleaning and etching in microelectronics fabrication. Falls under HTS 2903.59.90.00 as an unsaturated fluorinated acyclic hydrocarbon per Chapter 29 note (a). Its complete perfluorination excludes it from partially halogenated hydrocarbon classifications.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Submit REACH or TSCA pre-manufacture notices if not previously registered in US
• Verify cylinder requalification dates per DOT 49 CFR 173.302 for compressed gases
• Include end-use statements certifying semiconductor manufacturing application