Butene-1 Polymerization Grade from Mexico
High-purity butene-1 (>99.5%) specifically for LLDPE copolymer production, classified as pure butene isomer under HTS 2901.23.00.00.
Duty Rate — Mexico → United States
10%
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
• Polymer grade specs must show nitrogen <1ppm to maintain pure hydrocarbon status
• Refrigerated liquid transport documentation required for hazmat compliance
• Avoid bulk shipments mixed with C2/C3 streams to prevent Chapter 27 classification