Aromatic Polysulfone PSU 1700 from Germany
High-performance thermoplastic polysulfone resin with aromatic ether-sulfone monomer units in primary granular form. Specifically covered under HTS 3911.90.25.00 for polysulfones containing aromatic monomers.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Certify monomer analysis showing ≥95% aromatic units per subheading note (a)(1)
• Use heat-sealed bags to maintain primary form status
• Pitfall: engineering plastic blends may trigger 3904.40 reclassification