Chapters › 3913 › 3913.90 › 3913.90.20

HTS 3913.90.20

Polysaccharides and their derivatives

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 › Other

General (normal trade relations)5.8%
Special (trade programs)Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)
Column 250%
As of Revision 22 (2026), effective Oct 30, 2026Source: USITC HTS ↗3 measures add duty
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Chapter 99 measures that list this product

Each heading’s own text says whether the listing adds duty or exempts the product. Read the heading and its note before relying on a rate.

Measures on products of any country (check their exceptions)

Lines under 3913.90.20

HTSDescriptionGeneralColumn 2
3913.90.20.15Xanthan gum
3913.90.20.90Other