Is HTS 3913 subject to a Section 301 tariff?

Goods imported from China may carry an additional Section 301 tariff (typically +25% or +7.5%) on top of the base duty rate. Use the ShipSeeker calculator with origin set to China to estimate it.

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HTS 3913 Chapter 39

Natural Polymers (for Example, Alginic Acid) And Modified Natural Polymers (for Example, Hardened Proteins…

Q: What is the import duty rate for HTS 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:)?

The general (MFN) duty rate for HTS 3913 is varies by subheading. Free-trade-agreement (special) and Column 2 rates may also apply. Estimate the total landed cost by country of origin with the ShipSeeker calculator.

Q: What does HTS 3913 cover?

HTS 3913 covers 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: in the U.S. Harmonized Tariff Schedule (chapter 39).

U.S. import duty rate & tariff classification for HTS 3913 in the Harmonized Tariff Schedule.

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Full HTS 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:

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Duty rates for HTS 3913 are set at the subheading level.

Across its 2 subheadings, published general rates are 4.2%. Pick a specific code below for its exact rate.

Subheadings under 3913

HTS code	Description	General rate
3913.10.00.00	Alginic Acid, Its Salts And Esters	4.2%
3913.90	Other:	—

Next steps for HTS 3913

🧮Calculate landed costDuty + Section 301/232 + CBP fees, by origin 🌍Compare origins (China+1)The cheapest compliant country to import from 📊U.S. trade volumesPlastics And Articles Thereof (HS 39) 🤖Is this the right code?Describe your product & let the AI classifier check

🇨🇳 Importing from China? Goods from China may carry an additional Section 301 tariff (+25% or +7.5%) on top of the rate above. Estimate the real landed cost →

Source: U.S. International Trade Commission (USITC) Harmonized Tariff Schedule. Rates are for reference; verify with a licensed customs broker before importing.