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HS-4 · Heading

5508Sewing thread of man-made staple fibres, whether or not put up for retail sale

Chapter 55: Man-made staple fibres

Plain-language overview

Use HS-4 5508 when importing sewing thread made from man-made staple fibres, like polyester or nylon thread, whether packaged for retail or bulk. For example, if you're bringing in spools of synthetic sewing thread for a textile factory, this heading applies.

Choosing between HS-6 550810 and HS-6 550820 depends on the type of fibres used. If your sewing thread is made from synthetic fibres like nylon or polyester, classify it under 550810. If it's made from artificial fibres like rayon, then use 550820.

Both subheadings include threads that may be sold in retail packaging or in bulk. If you're unsure whether your product is synthetic or artificial, check the material specifications provided by your supplier.

Keywords & topics

Useful terms traders and brokers use for this HS-4 heading.

sewing thread classification · man-made staple fibres · synthetic sewing thread · artificial sewing thread · HS-4 5508 · HS-6 550810 · HS-6 550820 · import sewing thread · textile industry codes · retail packaging thread

Examples

Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.

  • Polyester sewing thread in 100-meter spools
  • Nylon thread for industrial sewing machines
  • Rayon sewing thread for quilting
  • Bulk synthetic thread for garment manufacturing
  • Retail-packaged sewing thread for home use
  • Threads made from blends of synthetic and artificial fibres

Common questions

Frequent classification questions with short practical guidance.

How to classify sewing thread for import?

Write down material, use, and product form first, then compare nearby lines before you lock the code.

What is the difference between synthetic and artificial sewing thread?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Which HS code for polyester sewing thread?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Is rayon considered synthetic or artificial?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How to determine the right HS-6 code for sewing thread?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Can I use HS-4 5508 for bulk sewing thread?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Related topics

Common real-world topics that come up during code comparison.

importing sewing thread of man-made fibres

Check the exact product specs and destination-country tariff notes before finalizing the code.

classifying synthetic and artificial sewing thread

Use this topic to narrow your shortlist, then validate the final code against legal wording.

understanding HS codes for textiles

Use this topic to narrow your shortlist, then validate the final code against legal wording.

choosing the right HS-6 for sewing thread

Use this topic to narrow your shortlist, then validate the final code against legal wording.

sewing thread packaging and classification

Use this topic to narrow your shortlist, then validate the final code against legal wording.

differences in sewing thread materials

Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.

retail vs bulk sewing thread classification

Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.

how to find the correct HS code for imports

Check the exact product specs and destination-country tariff notes before finalizing the code.

Questions & answers

For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.

What materials are classified under HS-4 5508?
HS-4 5508 covers sewing thread made from man-made staple fibres, including both synthetic and artificial fibres.
How do I know if my thread is synthetic or artificial?
Synthetic fibres include materials like nylon and polyester, while artificial fibres are derived from natural materials, such as rayon.
Can I use HS-6 550810 for all types of sewing thread?
No, HS-6 550810 is specifically for sewing thread made from synthetic staple fibres. Use HS-6 550820 for artificial staple fibres.
Does the packaging affect the HS code?
No, both HS-6 codes apply regardless of whether the thread is sold in retail packaging or in bulk.
What if my sewing thread is a blend of synthetic and artificial fibres?
If your thread contains both types of fibres, consult with a customs broker for the most appropriate classification.

Continue classification

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