HTS 3913.90 (3913.90.00) duty rate
3913.90.00 is not a rated tariff line. Subheading 3913.90 (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) is split into 3 tariff lines, and the duty rate depends on which one your product falls under:
| Line | Description | General | Section 301 (China) | Exclusions |
|---|---|---|---|---|
| 3913.90.10 | Chemical derivatives of natural rubber | Free | List 2 +25% | |
| 3913.90.20 | Polysaccharides and their derivatives | 5.8% | List 3 +25% | |
| 3913.90.50 | Other: Other | 6.5% | List 2 +25% |
Open the line that matches your product for its full rate table, Section 301 actions, exclusions, statistical suffixes and a free duty calculator.
Subheading 3913.90 at a glance
- 3 rated tariff lines; 1 duty-free at the general (MFN) rate.
- Ad valorem general rates from 5.8% to 6.5%.
- Section 301 (products of China): 3 of 3 lines on a list in effect (List 2, List 3).
Heading 3913 · Chapter 39 · HTS lookup
General information from the official US Harmonized Tariff Schedule (USITC); not legal or customs advice. Classification is decided by CBP.
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