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2917.39.70.00/Pyromellitic Dianhydride (PMDA)/Canada

Pyromellitic Dianhydride (PMDA) from Canada

Pyromellitic dianhydride is a tetrafunctional aromatic dianhydride used in high-performance polyimides for electronics and aerospace. Falls under HTS 2917.39.70.00 as an aromatic polycarboxylic acid anhydride derivative. Its rigid structure enables superior thermal stability.

Duty Rate — Canada → United States

16.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Molecular weight and purity certification required to distinguish from polymer intermediates

• Highly reactive; ship under nitrogen atmosphere with stabilizer documentation

Pyromellitic Dianhydride (PMDA) from Canada — Import Duty Rate | HTS 2917.39.70.00