HTS 3913.90: duty rate
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
A heading in the US Harmonized Tariff Schedule. The rate depends on the exact line, so here are the 3 lines under it.
From the US Harmonized Tariff Schedule, HTS 2026 Rev. 22, checked 6 hours ago. Rates are checked every six hours.
Duty is one line of your landed cost
Add the item cost, freight, insurance and brokerage to see what this code really costs you, and your margin at the price you charge.
Lines under this heading
Other lines under 3913
An estimate for planning, not a customs-compliance determination. Marginify is not a licensed customs broker. Confirm duty with your broker or the customs authority before you rely on a figure.