Polymerization-Grade Liquefied Butadiene Mix from Mexico
Liquefied C4 stream with 40-60% 1,3-butadiene plus butylenes, inhibited for rubber polymerization. Principal butadiene content places it in HTS 2711.14.00.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Submit weekly composite samples for butadiene % verification during entry
• Dedicated stainless steel tanks with mechanical refrigeration required
• Prevent auto-polymerization claims by documenting fresh inhibitor addition