Magnesium Nitrate Hexahydrate

Magnesium nitrate hexahydrate (Mg(NO3)2·6H2O) is an inorganic nitrate under HTS 2834.29.51.00, excluded from Chapter 25 exclusion for nitrates. Used as a catalyst and in fuel additives.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.5%+25.0%28.5%
🇲🇽Mexico3.5%3.5%
🇨🇦Canada3.5%3.5%
🇩🇪Germany3.5%3.5%
🇯🇵Japan3.5%3.5%

Alternative Classifications

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

3105.90.00Lower: 25% vs 28.5%

If in mineral fertilizer mixtures

Chapter 31 covers fertilizer mixtures containing nitrates per note exclusions.

2840Lower: 13.7% vs 28.5%

If rare earth magnesium nitrate complexes

Complex salts of rare earths classify under heading 2840.

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Import Tips & Compliance

Distinguish from pure magnesium oxide excluded by Chapter 28 note 2(a)

Include hydrate water content in assay certificates for customs valuation

Declare as UN 1474 oxidizer for proper hazmat handling