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Ammonium Metavanadate

Ammonium metavanadate ((NH4)VO3) is a key intermediate in vanadium processing, a salt of vanadic acid under HTS 2841.90.10.00. Commonly used in catalysts, inks, and chemical synthesis.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.5%+37.5%43%
🇲🇽Mexico5.5%+10.0%15.5%
🇨🇦Canada5.5%+10.0%15.5%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

2835.29Lower: 16.6% vs 43%

If considered a vanadate of ammonium as phosphate analog

Ammonium salts sometimes shift to Chapter 28 phosphatic salts if structure debated.

2841.90Same rate: 43%

If for complex vanadates

More complex or mixed vanadates may fall under other vanadates subheading.

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

• Provide Certificates of Analysis (CoA) confirming ammonium vanadate structure

• Comply with REACH or TSCA registration for chemical substances

• Label as hazardous (toxic) per DOT regulations to prevent shipping delays