</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Sodium Alginate Powder

Sodium alginate, derived from brown seaweed alginic acid, is a natural polysaccharide salt used in food texturizing and biomedical applications like wound dressings. HTS 3913.90.20 covers it as a polysaccharide derivative in primary powder form.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.8%+25.0%30.8%
🇲🇽Mexico5.8%5.8%
🇨🇦Canada5.8%5.8%
🇩🇪Germany5.8%5.8%
🇯🇵Japan5.8%5.8%

More Specific Codes

This product may fall under a more specific subheading:

Alternative Classifications

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

1302.39.00Lower: 20.7% vs 30.8%

If extracted as crude seaweed mucilage

Unmodified vegetable extracts like alginates in crude form are in 1302, before chemical derivation.

3913.10.00Lower: 21.7% vs 30.8%

If pure alginic acid without sodium salt

Alginic acid itself is specifically named in 3913.10, while derivatives like sodium salt go to 3913.90.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Source verification from alginates (not synthetic) prevents shift to Chapter 29 chemicals

Declare mesh size and purity to confirm primary form status

Related Products under HTS 3913.90.20