m-Phenylenediamine from Canada
m-Phenylenediamine produces high-performance polymers like polyimides and epoxy curing agents. Classifies under HTS 2921.49.50.00 as aromatic diamine. Pure isomer meeting Chapter 29 chemical purity standards.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Polymer manufacturer verification; oxidative stabilizer declaration; isomeric purity certification essential