Tetrahydrofuran (THF)
Tetrahydrofuran (THF) is a saturated heterocyclic compound with a five-membered furan ring containing one oxygen hetero-atom, used extensively as a solvent in chemical reactions and polymer manufacturing. It is classified under tariff item 2932.19.00 as an 'other' compound containing an unfused furan ring, whether or not hydrogenated, per Chapter 29 legal notes.
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 furan ring is fused or contains additional hetero-atoms
Fused or multi-hetero-atom compounds fall under different subheadings.
If the product is used primarily as an ether
Ethers are classified in heading 29.09, but the furan ring makes 29.32 more appropriate.
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 product is a separate chemically defined compound, as THF is often used as a solvent and may be mixed with stabilizers
• Verify the furan ring is unfused and contains only oxygen hetero-atoms
• Provide technical specifications and safety data sheets to CBSA for classification verification
Related Products under Tariff item 2932.19.00
2,5-Dimethylfuran
2,5-Dimethylfuran is a heterocyclic organic compound featuring an unfused furan ring with methyl groups at positions 2 and 5, containing only oxygen as the hetero-atom. It is used as a solvent, fuel additive, and intermediate in organic synthesis. This product is classified under tariff item 2932.19.00 as an 'other' compound containing an unfused furan ring, per Chapter 29 legal notes.
2,5-Furandicarboxylic Acid
2,5-Furandicarboxylic acid (FDCA) is a bio-based aromatic diacid featuring an unfused furan ring, primarily used as a monomer for producing polyethylene furanoate (PEF), a sustainable alternative to PET. Its structure contains only oxygen hetero-atoms in the ring, qualifying it under this tariff item.
2-Acetylfuran
2-Acetylfuran is an aromatic ketone with an unfused furan ring, used in the food industry for caramel-like flavors. The ketone substituent does not affect the oxygen hetero-atom ring classification, placing it under this tariff item.
2-Furaldehyde Diethyl Acetal
2-Furaldehyde diethyl acetal is a protected form of furfural, retaining the unfused furan ring with oxygen hetero-atoms. It is used in organic synthesis, and its acetal group does not alter the ring classification.
2-Furanmethanol Acetate
2-Furanmethanol acetate is the acetate ester of furfuryl alcohol, maintaining the unfused furan ring with oxygen hetero-atoms. It is used in flavor chemistry and polymer applications, and esters of furan alcohols are classified with the parent alcohol.
2-Furoic Acid
2-Furoic acid is an aromatic carboxylic acid with an unfused furan ring, used in pharmaceuticals and as a preservative. Its ring contains only oxygen hetero-atoms, fitting the description of this tariff item.