Liquid Polysulfone Concentrate from Mexico
Low-viscosity thermoplastic polysulfone in concentrated solution primary form, but solid-adjusted for 3911.90.91.10 as other thermoplastic per notes. Used in specialty coatings.
Duty Rate — Mexico → United States
6.5%
Rate breakdown
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
• Specify <50% solvent to argue primary thermoplastic vs dispersion
• Stability data prevents reclass as 3917 tubes if hose-applied