Regenerated Cellulose Battery Separator Film from Mexico
Microporous 0.04 mm regenerated cellulose film used as separators in alkaline batteries. Falls under HTS 3920.79.10.00 as thin noncellular sheet of cellulose derivatives without support. Microporosity doesn't make it cellular per definitions.
Duty Rate — Mexico → United States
16.2%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Certify noncellular via microscopy (no discrete cells); industrial use docs helpful
• Common issue: classifying as paper separator (4823.90)