1-Butene (But-1-ene) from Mexico
1-Butene is a colorless, flammable acyclic unsaturated hydrocarbon with the formula CH2=CH-CH2-CH3, classified under HTS 2901.23.00.00 as a pure isomer of butene. It serves as a key monomer in producing linear low-density polyethylene (LLDPE) and other polymers.
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
• Verify purity levels (>99%) via certificate of analysis to confirm classification as chemically defined compound
• Include Material Safety Data Sheets (MSDS) documenting flammability and handling requirements for customs clearance
• Avoid misclassification as mixtures by ensuring single-isomer specification in import documentation