Polypropylene Microporous Separator Film from China
A microporous polypropylene sheet used as battery separators, featuring interconnected pores for electrolyte flow. Classified in HTS 3921.19.0010 due to its cellular microporous structure of polypropylene film, meeting the 'other plastics' cellular category.
Duty Rate — China → United States
44%
Rate breakdown
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include technical data sheets proving Gurley air permeability <500 sec/100cc and porosity 30-50% for proper 3921.19.0010 classification
• Ensure COO certification; many origins qualify for Free (AU,CA) but confirm via HTS special column