HTS 3903.90 (3903.90.00) duty rate
3903.90.00 is not a rated tariff line. Subheading 3903.90 (Polymers of styrene, in primary forms › Other) is split into 2 tariff lines, and the duty rate depends on which one your product falls under:
| Line | Description | General | Section 301 (China) | Exclusions |
|---|---|---|---|---|
| 3903.90.10 | Methyl methacrylate-butadiene-styrene (MBS) copolymers | 6.5% | List 2 +25% | |
| 3903.90.50 | 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 3903.90 at a glance
- 2 rated tariff lines; 0 duty-free at the general (MFN) rate.
- Ad valorem general rates from 6.5% to 6.5%.
- Section 301 (products of China): 2 of 2 lines on a list in effect (List 2).
Heading 3903 · 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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