Tripotassium Phosphate (TKP)

Tripotassium phosphate (K3PO4) serves as a food additive for pH control and emulsification, being a pure potassium phosphate compound. It is classified in HTS 2835.24.00.00 as a chemically defined phosphate of potassium.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.1%+35.0%38.1%
🇲🇽Mexico3.1%+10.0%13.1%
🇨🇦Canada3.1%+10.0%13.1%
🇩🇪Germany3.1%+10.0%13.1%
🇯🇵Japan3.1%+10.0%13.1%

Alternative Classifications

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

2835.29Lower: 14.1% vs 38.1%

If of different metal base

Phosphates are classified by cation; other metals use 2835.29, keeping potassium-specific in 2835.24.

3105.30.00.00Lower: 25% vs 38.1%

If diammonium phosphate form for fertilizers

Chapter 31 fertilizers supersede Chapter 28 for end-use as plant nutrients.

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Import Tips & Compliance

Obtain prior FDA notice for food contact substances; ensure anhydrous vs hydrated form matches import declaration; watch for moisture content affecting weight-based duties