Product classification
HS code for Uncut weft pile synthetic fabric: 5801.31
Fabrics, woven pile, of man-made fibres, uncut weft pile fabrics, other than fabrics of heading no. 5802 or 5806.
Classification of uncut weft pile synthetic fabric under HS 5801.31
Uncut weft pile synthetic fabric is classified under HS code 5801.31. This classification is dictated by the material composition—specifically man-made fibers such as polyester, nylon, or acrylic—and the specific construction of the textile. Under the Harmonized System, woven pile fabrics are categorized by the fiber type and the state of the pile. For 5801.31, the pile must be created using supplementary weft yarns that are floated over the surface and left as loops. This 'uncut' state is the defining characteristic that separates it from cut pile fabrics like synthetic velvet. The use of synthetic filaments or staple fibers provides different durability and moisture-wicking properties compared to natural fibers, which is why the HS system separates man-made fibers (5801.31) from cotton (5801.21) or wool (5801.10). Proper classification requires a laboratory analysis of the fiber content to ensure it meets the 'man-made' criteria of Chapter 54 or 55.
- Covers
- Uncut synthetic corduroy fabrics
- Polyester-based uncut weft pile upholstery
- Nylon looped weft fabrics for industrial use
- Synthetic imitation fur in its uncut base state
- Also under 5801.31
- Crypton Home upholstery fabric (synthetic pile)
- automotive seat fabric (uncut pile)
- faux fur (if uncut weft pile)
Codes often confused with 5801.31
Common mistake. A common error is classifying these goods under HS code 6001, which covers knitted pile fabrics. While they may look similar, 5801.31 is strictly for woven fabrics. Another frequent misclassification occurs with HS code 5801.32, which is for cut weft pile synthetic fabrics. If the loops have been sheared or cut to create a soft pile, 5801.31 is no longer applicable. Importers also confuse this with 5801.33, which covers synthetic warp pile fabrics.
Top exporters and importers of HS 580131 (the code used for uncut weft pile synthetic fabric), 2025
In 2025, the largest exporter of HS 580131 (the code used for uncut weft pile synthetic fabric) in UN Comtrade data was China, with 94% of world exports; the largest importer in UN Comtrade data was Vietnam, with about 47% 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 580131, not only uncut weft pile synthetic fabric.
Top exporters 2025 · share of world exports
- 1 China $108M 94% of world exports
- 2 Slovenia $1.7M 1.5% of world exports
- 3 Poland $1.7M 1.5% of world exports
World total: $115M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Vietnam* ~$43M 47% of world imports · partner records ↗
- 2 Colombia $15M 17% of world imports
- 3 Cambodia* ~$2.7M 3.0% of world imports · partner records ↗
World total: $92M 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 uncut weft pile synthetic fabric
Brazil classifies uncut weft pile synthetic fabric under NCM 5801.31.00: HS 5801.31 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about uncut weft pile synthetic fabric
What is the HS code for Uncut weft pile synthetic fabric?
The HS code for Uncut weft pile synthetic fabric is 580131 (Fabrics; woven pile, of man-made fibres, uncut weft pile fabrics, other than fabrics of heading no. 5802 or 5806). The correct HS code for this material is 5801.31, provided it is woven and made of man-made fibers.
How do I classify Uncut weft pile synthetic fabric for customs?
Uncut weft pile synthetic fabric is classified under HS code 580131 — Fabrics; woven pile, of man-made fibres, uncut weft pile fabrics, other than fabrics of heading no. 5802 or 5806. This is a 6-digit subheading level code.
Can this code be used for microfiber fabrics?
Only if the microfiber is woven into an uncut weft pile structure. Most microfiber cloths are knitted and would fall under Chapter 60 instead.
Which countries are the top exporters of uncut weft pile synthetic fabric (HS 580131)?
In 2025, the top exporters of HS 580131 (the code used for uncut weft pile synthetic fabric) in UN Comtrade data were China ($108M, 94% of world exports), Slovenia ($1.7M) and Poland ($1.7M). World exports came to about $115M, 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 uncut weft pile synthetic fabric (HS 580131)?
In 2025, the top importers of HS 580131 (the code used for uncut weft pile synthetic fabric) in UN Comtrade data were Vietnam (about $43M, 47% of world imports), Colombia ($15M) and Cambodia (about $2.7M). World imports came to about $92M, 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 Uncut weft pile synthetic fabric the same in all countries?
The base HS code 580131 for Uncut weft pile synthetic fabric 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 uncut weft pile synthetic fabric in Brazil?
In Brazil, uncut weft pile synthetic fabric (HS 580131) is classified under NCM 5801.31.00.