Effage B100 Polyisobutylene from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, 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