Polytrimethylene Terephthalate (PTT) Pellets from China
PTT resin pellets are a polyester produced from terephthalic acid and 1,3-propanediol, used in textiles and engineering plastics. Classified in 3907.99.5050 as it qualifies as 'other polyesters' where the ester monomers predominate by weight over other units.
Duty Rate — China → United States
44%
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
9903.88.0225%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
• Provide lab analysis showing >95% predominant polyester monomers to comply with Chapter 39 subheading classification rules
• Label as 'primary forms' distinctly from compounded masterbatches which may require different statistical suffixes
• Check for bio-based content declarations that might affect alternative classifications under renewable polymer provisions