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Maleic Acid (99% Purity, Industrial Grade) from Canada

Maleic acid is a dicarboxylic acid with the formula HO2CCH=CHCO2H, classified under HTS 2917.19.23.00 as an acyclic polycarboxylic acid. This high-purity industrial grade product is used in the production of unsaturated polyester resins, coatings, and agricultural chemicals. It meets Chapter 29 requirements for separate chemically defined organic compounds.

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

Provide Certificate of Analysis (COA) confirming 99% purity and maleic acid composition to verify classification under 2917.19.23.00

Ensure proper hazardous material declaration (UN 2215) and UN-approved packaging for transoceanic shipment

Avoid misclassification as fumaric acid (2917.19.1500) by confirming cis-isomer structure via spectroscopic data