HTS 3908.90.20 duty rate

Bis(4-amino-3-methylcyclohexyl)methane- isophthalic acid-laurolactam copolymer. General duty Free; for goods of Chinese origin, general + Section 301 (+25%) comes to 25% before any other duties.

FreeGeneral (MFN) duty rate

List 2 +25%Section 301, products of China

25%General + Section 301 for China, ad valorem

2.2¢/kg + 33.5%Column 2 (Cuba, North Korea, Russia, Belarus)

Official USITC Harmonized Tariff Schedule, 2026HTSRev20 · data built 2026-10-02 · check on hts.usitc.gov

Tariff line	3908.90.20
Description	Polyamides in primary forms: › Other: › Bis(4-amino-3-methylcyclohexyl)methane- isophthalic acid-laurolactam copolymer
General rate	Free
Special rate (trade programs)	none listed
Column 2 rate	2.2¢/kg + 33.5%
Units of quantity	kg
Section 301 (China)	List 2 +25%

Section 301 China tariffs on this line

Chapter 99 heading	List	Extra duty	Status
9903.88.02	List 2	+25%	in effect

2026 US–China tariff reduction lists: The US–China reduction lists are not published yet. Dutyfinch checks the Federal Register every day and flags each code as soon as the list appears.

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Nearby tariff lines

3908.10.00 · 3908.90.70

← 3908.10.00 · 3908.90.70 → · Heading 3908 · Chapter 39 · Chapter 39 rate summary

General information from the official US Harmonized Tariff Schedule (USITC) and Federal Register; not legal or customs advice. Section 232, IEEPA, antidumping/countervailing and other duties can also apply. Confirm classification and rates with CBP or a licensed customs broker before you file.