Poly-4-methyl-1-pentene Granules from China
Granular poly-4-methyl-1-pentene (TPX) is a semicrystalline olefin polymer used in optical and high-temp applications, classified in HTS 3902.90.00 for primary form olefin polymers beyond propylene. Meets 95% monomer threshold. Offers low density and high transparency.
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
• Ensure granules are uniform to prevent 'parts' misclassification; submit density specs (0.83 g/cm³) for verification
• Avoid moisture exposure during transit to maintain processability
• Register for TSCA if used in US manufacturing