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HTS 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:

Tariff Details
HS Code
3913
Description
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:
General Duty Rate
Free
Unit of Quantity
Not specified
Section
Section 7
Last Updated
February 7, 2026
Additional Tariff Rates
Section 301 (China)
+25%
Reciprocal Tariff
+10%

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