Product classification
HS code for Synthetic blend yarn: 5509.99
Yarn, (not sewing thread), of synthetic staple fibres, mixed mainly or solely with fibres (other than wool, fine animal hair or cotton), n.e.c. in heading no. 5509, not put up for retail sale.
Classification of synthetic blend yarn under HS 5509.99
Synthetic blend yarn is classified under HS code 550999 when it consists of synthetic staple fibers mixed with other fibers, excluding wool, fine animal hair, or cotton. This classification falls under Chapter 55 (Man-made staple fibers). The code 550999 is a residual "other" category for yarns that do not meet the specific blend criteria of the preceding subheadings (such as blends with cotton or wool). To qualify for this code, the yarn must not be put up for retail sale, meaning it is typically imported on large cones or beams for industrial knitting or weaving. The classification is driven by the predominant weight of the synthetic staple fiber and the specific nature of the secondary fibers in the blend.
- Covers
- Polyester staple yarn mixed with silk
- Acrylic staple yarn mixed with flax
- Synthetic staple yarn mixed with regenerated cellulose fibers
- Multi-component synthetic industrial yarns
- Blended synthetic yarns for commercial carpet weaving
- Also under 5509.99
- Lenzing AG (specialty fibers often blended)
- Indorama Ventures (polyester often blended with various fibers)
- Toray Industries (synthetics used in diverse blends)
- Huvis (synthetics used in diverse blends)
- Specialized technical textile yarn producers
Codes often confused with 5509.99
Common mistake. A common error is classifying these yarns under HS code 5511, which is reserved for yarns put up for retail sale. Retail packaging is defined by specific weight limits (e.g., balls or skeins under 125g or 500g depending on the fiber). Another frequent misclassification occurs with HS code 550953, which is specifically for polyester staple fibers mixed with cotton. If the blend includes any amount of wool, it may be pushed into codes 550931 or 550941, depending on the weight percentages.
Top exporters and importers of HS 550999 (the code used for synthetic blend yarn), 2025
In 2025, the largest exporter of HS 550999 (the code used for synthetic blend yarn) in UN Comtrade data was China, with 46% of world exports; the largest importer in UN Comtrade data was Bangladesh, with about 17% 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 550999, not only synthetic blend yarn.
Top exporters 2025 · share of world exports
- 1 China $64M 46% of world exports
- 2 Türkiye $22M 16% of world exports
- 3 Germany $8.5M 6.1% of world exports
World total: $138M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Bangladesh* ~$23M 17% of world imports · partner records ↗
- 2 Russia* ~$12M 9.1% of world imports · partner records ↗
- 3 China $7.0M 5.1% of world imports
World total: $136M 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 synthetic blend yarn
Brazil classifies synthetic blend yarn under NCM 5509.99.00: HS 5509.99 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about synthetic blend yarn
What is the HS code for Synthetic blend yarn?
The HS code for Synthetic blend yarn is 550999 (Yarn; (not sewing thread), of synthetic staple fibres, mixed mainly or solely with fibres (other than wool, fine animal hair or cotton), n.e.c. in heading no. 5509, not put up for retail sale). The HS code for yarn of synthetic staple fibers, mixed with fibers other than wool, cotton, or fine animal hair, and not for retail sale, is 550999.
How do I classify Synthetic blend yarn for customs?
Synthetic blend yarn is classified under HS code 550999 — Yarn; (not sewing thread), of synthetic staple fibres, mixed mainly or solely with fibres (other than wool, fine animal hair or cotton), n.e.c. in heading no. 5509, not put up for retail sale. This is a 6-digit subheading level code.
When is a yarn considered "put up for retail sale"?
Yarn is considered for retail sale if it is packaged in specific forms like balls, cards, or skeins of a limited weight intended for end-consumers, typically falling under heading 5511 instead of 5509.
Which countries are the top exporters of synthetic blend yarn (HS 550999)?
In 2025, the top exporters of HS 550999 (the code used for synthetic blend yarn) in UN Comtrade data were China ($64M, 46% of world exports), Türkiye ($22M) and Germany ($8.5M). World exports came to about $138M, 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 synthetic blend yarn (HS 550999)?
In 2025, the top importers of HS 550999 (the code used for synthetic blend yarn) in UN Comtrade data were Bangladesh (about $23M, 17% of world imports), Russia (about $12M) and China ($7.0M). World imports came to about $136M, 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 Synthetic blend yarn the same in all countries?
The base HS code 550999 for Synthetic 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 synthetic blend yarn in Brazil?
In Brazil, synthetic blend yarn (HS 550999) is classified under NCM 5509.99.00.