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HS Codes

Harmonized System Code (HS) Lookup & Finder

Harmonized System Code lookup and finder

Your HS codes determine your compliance, your admissibility, and which supply chain advantages you can capture. See how precision classification can protect your finances and unlock greater strategy.

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U.S. Harmonized Tariff Schedule

HS Code 3913

Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms

U.S. Tariff Rates

U.S. tariff rates for HS Code 3913: Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms
Heading / SubheadingArticle DescriptionUnit of QuantityGeneralSpecial
3913Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms
3913.10.00.00Alginic acid, its salts and esterskg4.2%Free (,S,)
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3913.90Other
3913.90.10.00Chemical derivatives of natural rubberkgFree
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3913.90.20Polysaccharides and their derivatives5.8%Free (*,S,)
3913.90.20.15Xanthan gumkg
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3913.90.20.90Otherkg
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3913.90.50.00Otherkg6.5%Free (*,S,)
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