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Maleic Acid

Pure maleic acid, the dicarboxylic acid precursor to maleic anhydride, explicitly named in this HTS provision. Used in synthesis of unsaturated polyester resins and as a food additive.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+37.5%44%
🇲🇽Mexico6.5%+10.0%16.5%
🇨🇦Canada6.5%+10.0%16.5%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2916.20.50Lower: 41.2% vs 44%

If sold with glutaconic acid

Mixtures of specific unsaturated acyclic monocarboxylic acids classified earlier.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Specify crystal form and purity; impurities may affect classification

• Corrosive—require compatible packaging and spill containment plans