m-Phenylenediamine (m-PDA) from Canada
m-Phenylenediamine is an aromatic meta-diamine used in epoxy resin hardeners and polyimide films. It is an 'other' phenylenediamine under HTS 2921.51.5000, as a separate chemically defined compound in this amine-function heading.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Electronics grade requires low metal impurities certification
• Store under nitrogen; oxidation products may alter classification
• Confirm not mixed isomer batch qualifying as 3824 mixture