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Fluorosurfactant Intermediate TEAPFOS

Tetraethylammonium perfluorooctane sulfonate serving as a key intermediate for synthesizing advanced fluorosurfactants in electronics manufacturing. Falls squarely under HTS 2923.30.00.00 as the precisely named quaternary ammonium salt.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.2%+37.5%43.7%
🇲🇽Mexico6.2%+10.0%16.2%
🇨🇦Canada6.2%+10.0%16.2%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

3824.99.39Lower: 37.5% vs 43.7%

If containing >1% impurities or isomers

Mixtures of isomers or impure compounds exceeding Chapter 29 purity standards shift to Chapter 38 preparations.

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

• Include REACH registration numbers for EU-origin material if transshipping through US

• Monitor Stockholm Convention restrictions on PFOS compounds despite specific HTS allowance

• Validate 99%+ purity via HPLC to prevent reclassification as impure mixture