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550311Chapter 55

HS code 550311: Synthetic Staple Fibres

Covers:
Synthetic staple fibres, not carded, combed or otherwise processed for spinning: Of…
Listed US duty:
4.3% (US general rate, HTS 2026)

Official description

Synthetic staple fibres, not carded, combed or otherwise processed for spinning : Of nylon or other polyamides : Of aramids

Find or check your HS code

Suggestions from the HS index, not a customs ruling

Describe what you ship: what it is, what it is made of, how it is processed and what it is used for. I narrow it down against the real HS hierarchy, or check a code you were given.

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What 550311 covers and what it doesn’t

Official text: Synthetic staple fibres, not carded, combed or otherwise processed for spinning › Of nylon or other polyamides › Of aramids.

Nearby codes to check

  • Heading 5503 Synthetic staple fibres, not carded, combed or otherwise processed for spinning: every subheading side by side.
  • 550319 Of nylon or other polyamides — Other
  • 550320 Of polyesters
  • 550330 Acrylic or modacrylic
  • 550340 Of polypropylene
  • 550390 Other

US duty rate

4.3%

General (MFN) rate in the US Harmonized Tariff Schedule, 2026 edition. A range means the rate depends on the 8-digit US line your product falls under. Extra duties such as Section 301, Section 232 or anti-dumping orders can apply on top, depending on origin. Check the lines on hts.usitc.gov. Not legal advice.

Who imports under 550311

EximAgent lists companies with recorded shipments under this code, built from customs records, with who they buy from and how often. See importers of 550311 →

Common questions

What is HS code 550311?
Synthetic staple fibres, not carded, combed or otherwise processed for spinning : Of nylon or other polyamides : Of aramids
What duty rates apply to 550311?
Listed duty rates range from 4.3% across 1 country rate.

Browse all of Chapter 55: Man-made staple fibres →

Go beyond the code

Classify a product and check the duty for your destination with the CLI, then keep researching in your own agent.

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