Refrigerated Liquid Buta-1,3-diene from China
Liquefied buta-1,3-diene stored at -4°C under pressure, classified under HTS 2901.24.10.00 per Chapter 29 note (e) as solvent-free pure compound in transport form. Used primarily in tire manufacturing as synthetic rubber feedstock.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Temperature logs required throughout transit to prove product remained chemically unchanged
• Stainless steel IMO Type 5 tanks mandatory; carbon steel risks polymerization corrosion
• CBP may require inhibitor analysis (<50 ppm if present) to verify transport-only stabilization