Fumaric Acid for Biodegradable Polymer Synthesis
Fumaric acid used as a monomer for poly(butylene fumarate) biodegradable plastics is a pure acyclic polycarboxylic acid. As a separate chemically defined organic compound, it falls under tariff item 2917.19.00 as 'Other' acyclic polycarboxylic acids. The intended use in polymer synthesis does not affect its classification.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the fumaric acid is imported as part of a polymer formulation
If the product is a polymer in primary form, it would be classified in Chapter 39.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the fumaric acid is pure and not mixed with other monomers or additives
• Have the chemical analysis documentation ready for CBSA
• Confirm the product is not put up in measured doses or for retail sale, which would change classification
Related Products under Tariff item 2917.19.00
Adipic Acid Peroxide Derivative
Di(1-hydroperoxy-1-methylbutyl) peroxide is a peroxyacid derivative of adipic acid, an acyclic polycarboxylic acid. It is used as a polymerization initiator in rubber and plastics. This product falls under tariff item 2917.19.00 as an 'Other' derivative of acyclic polycarboxylic acids.
Anti-Dusting Fumaric Acid with Colorant
Fumaric acid with trace blue colorant and anti-dust agent for safety identification during handling. Chapter 29 Note 1(g) permits such additions for safety reasons, provided they do not render the product particularly suitable for specific use. Classified under 2917.19.00.
Aromatic-Derived Fumaric Acid
Fumaric acid produced through chemical processes involving aromatic hydrocarbons like benzene or toluene derivatives, used primarily in resins and polymer production. This acyclic polycarboxylic acid falls under tariff item 2917.19.00 as an 'Other' acyclic polycarboxylic acid, regardless of the aromatic derivation of the feedstock.
Benzene Process Fumaric Acid
Fumaric acid isolated from benzene partial oxidation routes, primarily for unsaturated polyester resin manufacture. The aromatic hydrocarbon derivation is confirmed by carbon isotope analysis, but the product itself is a chemically defined acyclic polycarboxylic acid classifiable under 2917.19.00.
Coal Tar Fumaric Acid Derivative
Fumaric acid extracted from coal tar light oil fractionation and oxidation, a traditional aromatic source for specialty resins. Despite the aromatic origin, the final product is a chemically defined acyclic polycarboxylic acid falling under 2917.19.00.
Cumene Oxidation Fumaric Byproduct
Fumaric acid recovered from cumene (isopropylbenzene) oxidation process streams, repurposed for polymer applications. The aromatic derivation via cumene does not affect the classification of the final chemically defined product under 2917.19.00.