Product classification

HS code for Polyester blend yarn: 5509.59

Yarn, (not sewing thread), of polyester staple fibres, mixed mainly or solely with fibres n.e.c. in item no. 5509.5, not put up for retail sale.

Classification of polyester blend yarn under HS 5509.59

Polyester blend yarn is classified under HS code 5509.59 when it is a yarn of polyester staple fibers mixed with fibers other than artificial staple fibers, wool, or cotton. This is a residual or "basket" category within heading 5509. Under the Harmonized System, yarn classification is highly specific regarding the blending components. If the yarn is predominantly polyester staple fiber by weight, but the secondary fiber is something like silk, flax, hemp, or a specialty synthetic fiber not covered by subheadings 5509.51 through 5509.53, it falls here. This code applies to yarn not put up for retail sale, typically used in industrial textile manufacturing. The fibers must be staple (discontinuous) fibers that have been spun together to form the yarn.

Covers
  • Polyester staple yarn mixed with silk fibers
  • Polyester staple yarn mixed with flax or linen
  • Polyester staple yarn mixed with specialty animal hair (not wool)
  • Blended yarns of polyester staple and miscellaneous synthetic fibers
Also under 5509.59
  • Invista (Coolmax/Thermolite blends)
  • Lenzing (Tencel/Polyester blends)
  • DuPont (Sorona/Polyester blends)
  • Toray (various polyester blends)

Codes often confused with 5509.59

Common mistake. This code is often confused with 5509.51 (blends with artificial fibers), 5509.52 (blends with wool/fine animal hair), or 5509.53 (blends with cotton). Importers must have a precise percentage breakdown of the fiber content to avoid using 5509.59 incorrectly. It is also distinct from 5511, which is for yarn put up for retail sale, and 5402, which is for filament-based yarns.

5509.51Yarn; (not sewing thread), of polyester staple fibres, mixed mainly or solely with artificial staple fibres, not put up for retail sale5509.52Yarn; (not sewing thread), of polyester staple fibres, mixed mainly or solely with wool or fine animal hair, not put up for retail sale5509.53Yarn; (not sewing thread), of polyester staple fibres, mixed mainly or solely with cotton, not put up for retail sale55.11Yarn (not sewing thread), of man-made staple fibres, put up for retail sale54.02Synthetic filament yarn (other than sewing thread), not put up for retail sale, including synthetic monofilament of less than 67 decitex

Top exporters and importers of HS 550959 (the code used for polyester blend yarn), 2025

In 2025, the largest exporter of HS 550959 (the code used for polyester blend yarn) in UN Comtrade data was China, with 70% of world exports; the largest importer in UN Comtrade data was Bangladesh, with about 37% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.

Figures cover everything classified under HS 550959, not only polyester blend yarn.

Top exporters 2025 · share of world exports

  1. 1 China $106M
  2. 2 India $10M
  3. 3 Netherlands $7.1M

World total: $152M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 Bangladesh* ~$64M
  2. 2 Egypt $29M
  3. 3 Cambodia* ~$12M

World total: $171M 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 code for polyester blend yarn

Brazil classifies polyester blend yarn under NCM 5509.59.00: HS 5509.59 with 00 added.

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

Questions about polyester blend yarn

What is the HS code for Polyester blend yarn?

The HS code for Polyester blend yarn is 550959 (Yarn; (not sewing thread), of polyester staple fibres, mixed mainly or solely with fibres n.e.c. in item no. 5509.5, not put up for retail sale).

How do I classify Polyester blend yarn for customs?

Polyester blend yarn is classified under HS code 550959 — Yarn; (not sewing thread), of polyester staple fibres, mixed mainly or solely with fibres n.e.c. in item no. 5509.5, not put up for retail sale. This is a 6-digit subheading level code.

What is the HS code for polyester and silk blend yarn?

Yarn made predominantly of polyester staple fibers mixed with silk is classified under HS code 5509.59.

Does this code apply to 100% polyester yarn?

No, 100% polyester staple yarn is classified under 5509.21 (single yarn) or 5509.22 (multiple/cabled yarn). 5509.59 requires a blend with "other" fibers.

Which countries are the top exporters of polyester blend yarn (HS 550959)?

In 2025, the top exporters of HS 550959 (the code used for polyester blend yarn) in UN Comtrade data were China ($106M, 70% of world exports), India ($10M) and the Netherlands ($7.1M). World exports came to about $152M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Which countries are the top importers of polyester blend yarn (HS 550959)?

In 2025, the top importers of HS 550959 (the code used for polyester blend yarn) in UN Comtrade data were Bangladesh (about $64M, 37% of world imports), Egypt ($29M) and Cambodia (about $12M). World imports came to about $171M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

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

The base HS code 550959 for Polyester 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 polyester blend yarn in Brazil?

In Brazil, polyester blend yarn (HS 550959) is classified under NCM 5509.59.00.