Effage B100 Polyisobutylene from Mexico
Effage B100 is a medium-high molecular weight polyisobutylene for pharmaceutical sealants and transdermal patches, under HTS 3902.20.5000 as 'Other' polyisobutylene meeting monomer purity requirements. Supplied as pharmaceutical-grade primary polymer.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include USP/EP certificates and DMF references; ensure clean room packaging verification; segregate pharma from industrial grades for different regulations