Battery Grade PP Microporous Membrane from United States
>- High-purity microporous polypropylene membrane used as a lithium-ion battery separator, with controlled pore distribution. This is a cellular (microporous) sheet of polypropylene, which is not one of the named plastics in other subheadings of heading 39.21, so it falls under 3921.19.00 as "of other plastics."
Duty Rate — United States → Canada
0%
Import Tips
• >- Provide the membrane's pore size distribution and porosity data to support the cellular classification
• Ensure the product is declared as a sheet/film, not as a battery component, to avoid classification under a different heading
• If the membrane is imported with battery cells, verify whether it should be classified separately