HTSUS, United States

3908.90.70.00

Polyamides in primary forms / Other

Classification path

  1. Polyamides in primary forms
  2. Other
  3. Other

Rates of duty

General (MFN)
6.5%
Column 2Cuba, North Korea, Russia, Belarus
2.2¢/kg + 33.5%
Unit of quantity
kg

Trade agreement rates

FreeGSP (lapsed since Dec 31, 2020), U.S.-Australia FTA, U.S.-Bahrain FTA, U.S.-Chile FTA, U.S.-Colombia TPA, AGOA (authorized through Dec 31, 2026), E, U.S.-Israel FTA, U.S.-Jordan FTA, U.S.-Korea FTA, U.S.-Morocco FTA, U.S.-Oman FTA, CAFTA-DR, U.S.-Panama TPA, U.S.-Peru TPA, USMCA, U.S.-Singapore FTA

Related lines in heading 3908

About heading 3908

Polyamides in primary forms

Heading 3908 covers polyamides in primary forms: resins, granules, pellets, powders, flakes and similar unformed masses, before they are made into film, fiber or finished parts. It splits three ways: a line for the named polyamide types (nylon 6, 11, 12, 6,6, 6,9, 6,10 and 6,12), a duty-free line for one specified copolymer, and a residual line for all other polyamides and polyamide blends.

Full guide to heading 3908

Products in this heading

  • Nylon 6 resin pellets for injection molding
  • Nylon 6,6 molding compound in granule form
  • Nylon 12 powder for coating or sintering
  • Nylon 11 granules for extrusion
  • Polyamide hot melt adhesive resin in pellet form
  • Reprocessed nylon resin in flake or pellet form
  • Polyamide copolymer resin in primary form

Frequently asked questions

What is the HTS code for nylon 6 pellets?

Nylon 6 in primary form is classified under 3908.10.00.00, which carries a general (MFN) rate of 6.3%.

What is the duty on polyamide resin?

The named polyamide types under 3908.10.00.00 pay a general (MFN) rate of 6.3%. Other polyamides and blends fall under 3908.90.70.00 at a general (MFN) rate of 6.5%.

How do I classify a polyamide that is not nylon 6, 11, 12, 6,6, 6,9, 6,10 or 6,12?

It goes in the residual line 3908.90.70.00 at a general (MFN) rate of 6.5%, unless it is the specified copolymer of 3908.90.20.00, which is free.

Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.

HTS 3908.90.70.00: Polyamides in primary forms / Other, 6.5% duty | HTSBase