Product classification

HS code for Rayon blend yarn: 5510.90

Yarn, (not sewing thread), of artificial staple fibres, mixed mainly or solely with fibres (other than wool, fine animal hair or cotton), not put up for retail sale.

Classification of rayon blend yarn under HS 5510.90

Rayon blend yarn is classified under HS code 5510.90, which serves as a residual category for yarns made of artificial staple fibers. Chapter 55 governs man-made staple fibers, and heading 5510 specifically covers yarn (other than sewing thread) of artificial staple fibers that is not put up for retail sale. The subheading 5510.90 is used when the artificial staple fibers (such as viscose or acetate) are mixed with fibers other than wool, fine animal hair, or cotton. This typically includes blends with synthetic staple fibers like polyester or acrylic. The classification depends on the yarn being composed of discontinuous fibers; if the yarn were made of continuous artificial filaments, it would fall under heading 5403. Furthermore, the yarn must not be packaged for retail sale (e.g., in small balls or skeins intended for consumer use), as that would move the classification to heading 5511.

Covers
  • Rayon and polyester staple fiber blended yarn
  • Viscose and acrylic staple fiber blended yarn
  • Modal and nylon staple fiber blended yarn
  • Artificial staple fiber yarns mixed with synthetic fibers for industrial knitting
Also under 5510.90
  • Lenzing blended yarns (e.g., Tencel-polyester)
  • Birla Cellulose blends
  • Sateri EcoCosy blends
  • Eastman Naia blends
  • various technical textile yarn manufacturers

Codes often confused with 5510.90

Common mistake. A frequent misclassification occurs with HS code 5510.11, which is reserved for single yarns containing 85% or more by weight of artificial staple fibers. It is also often confused with 5510.30, which is specifically for blends containing cotton. If the yarn is intended for sewing and meets the technical definition of sewing thread, it must be moved to heading 5508.

5510.11Yarn; (not sewing thread), single, of artificial staple fibres, containing 85% or more by weight of artificial staple fibres, not put up for retail sale5510.30Yarn; (not sewing thread), of artificial staple fibres, mixed mainly or solely with cotton, not put up for retail sale55.08Sewing thread of man-made staple fibres, whether or not put up for retail sale

Top exporters and importers of HS 551090 (the code used for rayon blend yarn), 2025

In 2025, the largest exporter of HS 551090 (the code used for rayon blend yarn) in UN Comtrade data was China, with 64% of world exports; the largest importer in UN Comtrade data was Bangladesh, with about 29% of world imports. Vietnam did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 97% of its exports here ($25M, CEPII BACI), so it may also belong among the top exporters. Cambodia did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 65% of its imports here ($25M, CEPII BACI), so it may also belong among the top importers.

Figures cover everything classified under HS 551090, not only rayon blend yarn.

Top exporters 2025 · share of world exports

  1. 1 China $260M
  2. 2 Slovakia $22M
  3. 3 Italy $21M

Vietnam did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 97% of its exports here ($25M, CEPII BACI), so it may also belong among the top exporters.

World total: $404M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 Bangladesh* ~$94M
  2. 2 Italy $37M
  3. 3 Vietnam* ~$24M

Cambodia did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 65% of its imports here ($25M, CEPII BACI), so it may also belong among the top importers.

World total: $331M Reported figures on UN Comtrade ↗

How these figures are built

109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).

Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.

Brazil NCM codes for rayon blend yarn

Brazil splits HS 5510.90 into 5 NCM codes. Pick the one that matches your product:

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.

Questions about rayon blend yarn

What is the HS code for Rayon blend yarn?

The HS code for Rayon blend yarn is 551090 (Yarn; (not sewing thread), of artificial staple fibres, mixed mainly or solely with fibres (other than wool, fine animal hair or cotton), not put up for retail sale). The HS code for yarn of artificial staple fibers mixed with fibers other than cotton or wool, not for retail sale, is 5510.90.

How do I classify Rayon blend yarn for customs?

Rayon blend yarn is classified under HS code 551090 — Yarn; (not sewing thread), of artificial staple fibres, mixed mainly or solely with fibres (other than wool, fine animal hair or cotton), not put up for retail sale. This is a 6-digit subheading level code.

What if the yarn is mixed with 20% wool?

If the rayon staple fiber yarn is mixed mainly or solely with wool or fine animal hair, it should be classified under HS code 5510.20.

Which countries are the top exporters of rayon blend yarn (HS 551090)?

In 2025, the top exporters of HS 551090 (the code used for rayon blend yarn) in UN Comtrade data were China ($260M, 64% of world exports), Slovakia ($22M) and Italy ($21M). World exports came to about $404M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Vietnam did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 97% of its exports here ($25M, CEPII BACI), so it may also belong among the top exporters.

Which countries are the top importers of rayon blend yarn (HS 551090)?

In 2025, the top importers of HS 551090 (the code used for rayon blend yarn) in UN Comtrade data were Bangladesh (about $94M, 29% of world imports), Italy ($37M) and Vietnam (about $24M). World imports came to about $331M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Cambodia did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 65% of its imports here ($25M, CEPII BACI), so it may also belong among the top importers.

Is the HS code for Rayon blend yarn the same in all countries?

The base HS code 551090 for Rayon blend yarn is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.

What is the NCM code for rayon blend yarn in Brazil?

Brazil splits HS 551090 into 5 NCM codes, so the right one for rayon blend yarn depends on the product's details: 5510.90.11 (Viscose yarn (not modal) in other blends), 5510.90.12 (Modal staple yarn in other blends), 5510.90.13 (Lyocell staple yarn in other blends), 5510.90.19 (Other cellulosic staple yarn in other blends), 5510.90.90 (Non-cellulose artificial yarn in other blends).