Aromatic Polysulfone PSU 1700 from Mexico
Aromatic polysulfone resin in primary granular form, a high-performance thermoplastic with aromatic ether-sulfone monomer units. It falls under tariff item 3911.90.00 as a product specified in Note 3 to Chapter 39, not elsewhere specified or included.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the resin is in primary forms (granules, powder, etc.) and not further worked, as per Chapter 39 Note 6
• Declare the chemical composition accurately to avoid CBSA reclassification
• Keep supplier documentation on monomer content to support the classification