Liquid Polybutene L-14E from China
Liquid polybutene L-14E (viscosity 140 cSt) is a low molecular weight olefin polymer imported under HTS 3902.90.00 for use in lubricants and caulks. Isobutylene monomer >95% by weight in primary liquid form.
Duty Rate — China → United States
44%
Rate breakdown
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Classify as UN1268 liquid per DOT; provide flash point data (>200°C)
• Avoid drum linings reactive with olefins
• Temperature-control shipments above 15°C