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Magnesium Stearate USP Grade

Magnesium stearate USP is a pharmaceutical-grade salt of stearic acid used as a lubricant in tablet manufacturing. Classified under HTS 2915.70.0150 as an 'other' stearic acid salt meeting chapter purity standards.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5%+37.5%42.5%
🇲🇽Mexico5%+10.0%15%
🇨🇦Canada5%+10.0%15%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

3002.90Lower: 12.5% vs 42.5%

If when packaged as finished pharmaceutical product

Human blood or vaccine preparations with excipients fall under Chapter 30.

3824Lower: 17.5% vs 42.5%

If in prepared pharmaceutical binder mixtures

Mixtures containing magnesium stearate as one component classified by principal function.

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 USP certificate of analysis and DMF if for drug manufacturing

• Ensure compliance with FDA import alerts for pharmaceutical excipients

• Declare exact stearic acid chain length distribution per pharmacopeia specs