Polysulfone Pellets USP Grade from Japan
USP-grade polysulfone pellets are high-purity polyethers in primary form, featuring diphenyl sulfone ether linkages that exceed 95% polymer content. They are classified under tariff item 3907.29.00 as other polyethers, given their polyether structure and primary pellet form. These pellets are used in medical devices, food contact materials, and water filtration components.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the pellets meet USP-grade specifications and provide certificates of analysis to the CBSA
• Confirm that the polyether content exceeds 95% by weight to maintain classification under this tariff item
• Verify compliance with Canadian medical device regulations if used in healthcare applications