Polymer-Grade Liquefied Butylene (C4 Olefin Mix) from Japan
Polymer-grade liquefied butylene is a high-purity C4 olefin mixture (85%+ total butylene isomers) for polyethylene co-monomer use, falling under HTS 2711.14.00.30. Specifications ensure low impurities for resin production.
Duty Rate — Japan → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include polymer producer specifications confirming <100 ppm acetylenes/dienes for grade verification
• Use nitrogen-padded containers to prevent oxidation; test dissolved oxygen levels upon arrival
• Coordinate with CBP for advance ruling on exact isomer ratios if borderline with propylene content