Poly(1-butene) Pipe Grade Resin from China
High-density poly(1-butene) resin for piping applications, classified in HTS 3902.90.0050 as other olefin polymers in primary granular form with >95% 1-butene monomer units. It offers superior creep resistance and flexibility for plumbing and gas pipes. Subheading notes place it in 'Other' after polypropylene specifics.
Duty Rate — China → United States
31.5%
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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Provide density and melt index specs matching 1-butene polymer characteristics
• Avoid bulk packaging that mimics finished pipes (3925 classification risk)
• Certify no plasticizers added, per subheading note for related plastics