Extracted C4 Butadiene Fraction from Japan
Buta-1,3-diene recovered via extractive distillation from C4 steam cracker raffinate, purified to chemical compound standards under HTS 2901.24.10.00. Primary use in nitrile rubber production.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Distillation process documentation essential to prove separation from butene/butane mixtures
• NACE inhibitor certificates required if stored >30 days to prevent auto-polymerization
• Bulk imports >500 MT may qualify for duty drawback if re-exported as polymers