Copolyester Elastomer (COPE) Pellets from China
COPE pellets like Hytrel are thermoplastic elastomers combining polyester hard segments with polyether soft segments for hoses and belts. Classified 3907.99.50 as other polyesters where polyester units predominate over polyether per subheading note (a)(4).
Duty Rate — China → United States
41.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Import Tips
• Prove polyester monomer >50% by weight via GPC analysis; specify Shore hardness for end-use verification; ensure no plasticizer content exceeding note definitions