HS code · 6-digit subheading
HS Code 5403.31 – Yarn, artificial; filament, monofilament (less than 67 decitex), of viscose rayon (not high tenacity), single, untwisted or twisted 120 turns per metre or less, not for retail sale, not sewing thread
HS code 5403.31 is the 6-digit subheading for yarn, artificial, filament, monofilament (less than 67 decitex), of viscose rayon (not high tenacity), single, untwisted or twisted 120 turns per metre or less, not for retail sale, not sewing thread. It is used for viscose filament yarn (untwisted), rayon single yarn (low twist), apparel-grade viscose yarn, home textile rayon yarn and decorative fabric viscose.
What HS 5403.31 covers
This HS code covers single filament yarn of viscose rayon, which is not high tenacity, untwisted or with a low twist (120 turns per metre or less), and not for retail sale or sewing thread. These yarns are prized in the textile industry for their soft hand, excellent drape, and good absorbency, making them ideal for a wide range of apparel and home textile applications. They are frequently used in linings, blouses, dresses, and decorative fabrics where a smooth, lustrous finish is desired. Importers are typically textile mills, garment manufacturers, and fabric converters who process these yarns into finished goods. Exporters are major producers of artificial fibers. The low twist contributes to the yarn's softness and sheen, distinguishing it from more robust, highly twisted varieties.
- Covers
- Viscose filament yarn (untwisted)
- Rayon single yarn (low twist)
- Apparel-grade viscose yarn
- Home textile rayon yarn
- Decorative fabric viscose
- Viscose for linings
- Soft-touch rayon yarn
- Examples
- Lenzing Viscose (standard grades)
- Birla Cellulose (standard grades)
- Sateri Viscose
- Grasim Industries Viscose
- China Hi-Tech Group (CHTC) rayon yarn
Codes often confused with 5403.31
Common mistake. Can be mistaken for 540310 if the 'high tenacity' aspect is overlooked, or 540332 (other single viscose rayon yarn) if the twist level is not precisely determined.
Top exporters and importers of HS code 540331, 2025
In 2025, the largest exporter of HS code 540331 in UN Comtrade data was China, with 89% of world exports; the largest importer in UN Comtrade data was India, with 52% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 China $589M 89% of world exports
- 2 India $24M 3.6% of world exports
- 3 Poland $23M 3.5% of world exports
World total: $660M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $392M 52% of world imports
- 2 Pakistan $121M 16% of world imports
- 3 Italy $44M 5.8% of world imports
World total: $756M 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 that did not report are estimated from what other countries recorded trading with them. 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 5403.31 2
Brazil splits HS 5403.31 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 5403.31.10 Unbleached/bleached viscose yarn, max 120 turns/mCrus ou branqueados
- 5403.31.90 Other viscose single yarn, max 120 turns/mOutros
All Brazil NCM codes in heading 54.03 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 5403.31
What is HS code 540331?
HS code 540331 is a 6-digit subheading in the Harmonized System that covers: Yarn, artificial; filament, monofilament (less than 67 decitex), of viscose rayon (not high tenacity), single, untwisted or twisted 120 turns per metre or less, not for retail sale, not sewing thread. This HS code covers single filament yarn of viscose rayon, which is not high tenacity, untwisted or with a low twist (120 turns per metre or less), and not for retail sale or sewing thread. These yarns are prized in the textile industry for their soft hand, excellent drape, and good absorbency, making them ideal for a wide range of apparel and home textile applications. They are frequently used in linings, blouses, dresses, and decorative fabrics where a smooth, lustrous finish is desired. Importers are typically textile mills, garment manufacturers, and fabric converters who process these yarns into finished goods. Exporters are major producers of artificial fibers. The low twist contributes to the yarn's softness and sheen, distinguishing it from more robust, highly twisted varieties.
What products fall under HS code 540331?
Viscose filament yarn (untwisted), Rayon single yarn (low twist), Apparel-grade viscose yarn, Home textile rayon yarn, Decorative fabric viscose, Viscose for linings, Soft-touch rayon yarn
What are common misclassifications for HS code 540331?
Can be mistaken for 540310 if the 'high tenacity' aspect is overlooked, or 540332 (other single viscose rayon yarn) if the twist level is not precisely determined.
Which countries are the top exporters of goods under HS code 540331?
In 2025, the top exporters of HS code 540331 in UN Comtrade data were China ($589M, 89% of world exports), India ($24M) and Poland ($23M). World exports came to about $660M, 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 goods under HS code 540331?
In 2025, the top importers of HS code 540331 in UN Comtrade data were India ($392M, 52% of world imports), Pakistan ($121M) and Italy ($44M). World imports came to about $756M, 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.
How is HS code 540331 structured?
HS code 540331 is a 6-digit subheading under the Harmonized System. The first 2 digits (54) identify the chapter, digits 3-4 (03) identify the heading, and digits 5-6 (31) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 540331?
Brazil splits HS code 540331 into 2 NCM codes: 5403.31.10 (Unbleached/bleached viscose yarn, max 120 turns/m), 5403.31.90 (Other viscose single yarn, max 120 turns/m). The first 6 digits of each match the HS code.