PET Battery Separator Film from Canada
Microporous polyester film used as separators in lithium-ion batteries, classified 3920.69.00.00 if noncellular structure predominates despite porosity. Ensures electrolyte flow and safety.
Duty Rate — Canada → United States
14.2%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide Gurley air permeability and shutdown temperature data for separator specs
• Confirm non-woven/microcellular vs. true noncellular for 3920 vs. 3921