Regenerated Cellulose Battery Separator Film from China
Microporous noncellular film (pre-processed) of regenerated cellulose used as separators in alkaline batteries. Qualifies for HTS 3920.71.00.00 as plain sheets before final assembly, with cellulose derivatives predominating. Critical component for battery manufacturing.
Duty Rate — China → United States
43.7%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
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)
Import Tips
• Import as raw film stock; assembled batteries classify under 8507 with different duties
• Thickness certification needed; very thin films (<0.1mm) face additional scrutiny
• Ensure no impregnation with electrolytes at import, which changes classification