High-Purity PTFE Granules from China
Pharmaceutical-grade polytetrafluoroethylene granules with ultra-high purity (>99.9% PTFE), used in medical device molding. Falls under HTS 3904.61.00 per strict 95% monomer content rule for named polymers.
Duty Rate — China → United States
30.8%
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
• Include USP Class VI or ISO 10993 biocompatibility certificates for CBP review
• Test for extractables to confirm purity and prevent reclass to mixtures