Ammonium Molybdate Catalyst

Ammonium heptamolybdate ((NH4)6Mo7O24) used as a selective oxidation catalyst in acrylic acid production. Falls under HTS 3815.90.2000 as a wholly inorganic molybdenum-based catalytic preparation.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.8%+35.0%37.8%
🇲🇽Mexico2.8%+10.0%12.8%
🇨🇦Canada2.8%+10.0%12.8%
🇩🇪Germany2.8%+10.0%12.8%
🇯🇵Japan2.8%+10.0%12.8%

Alternative Classifications

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

2841.70.10.00Lower: 14.3% vs 37.8%

If imported as bulk molybdate salt

Ammonium molybdates as chemicals classify in 2841, separate from Chapter 38 catalytic uses.

3102.60.00.00Lower: 25% vs 37.8%

If for agricultural micronutrient use

Molybdenum compounds for fertilizer purposes move to Chapter 31, not catalysts.

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Import Tips & Compliance

Test for ammonia content stability; decomposition could shift classification away from 'wholly inorganic'

Include end-use statement from buyer confirming catalytic application to support tariff positioning

Related Products under HTS 3815.90.20.00