Supercapacitor Separator Membrane from Mexico
Ultra-thin microporous membranes separating electrodes in electric double-layer capacitors (supercapacitors). HTS 8532.90.00.00 applies as parts of fixed electrical capacitors.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Pore size (nm) and ionic conductivity specs essential for capacitor parts classification
• Avoid paper classification (4805) by proving synthetic membrane composition and function
• Energy storage density ratings tie separator to supercapacitor performance requirements