Product classification
HS code for Viscose filament yarn: 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.
Classification of viscose filament yarn under HS 5403.31
Viscose filament yarn is classified under HS code 5403.31 because it consists of continuous artificial filaments of viscose rayon. According to the General Rules of Interpretation (GRI) and the Section XI notes of the Harmonized System, Chapter 54 covers man-made filaments. Heading 5403 specifically addresses artificial filament yarn (other than sewing thread) not put up for retail sale. The subheading 5403.31 is designated for single yarns of viscose rayon that are either untwisted or have a twist not exceeding 120 turns per meter. This classification is determined by the chemical nature of the fiber (regenerated cellulose), the physical form (continuous filament), and the mechanical processing (single ply with low twist). It excludes high tenacity yarns and yarns that have been folded or cabled. The yarn must be less than 67 decitex if it were a monofilament, though most commercial viscose filament yarns meet the criteria for this heading based on their multi-filament structure.
- Covers
- Single viscose rayon filament yarn
- Untwisted viscose rayon yarn
- Viscose yarn with twist less than 120 turns per meter
- Non-tenacity artificial filament yarn
- Viscose rayon monofilament less than 67 decitex
- Also under 5403.31
- 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. This code is frequently confused with HS code 5403.10, which is reserved specifically for high tenacity viscose rayon yarn used in industrial applications. It is also often misclassified under HS code 5510, which covers yarns made from artificial staple fibers; the distinction lies in whether the fibers are continuous (filament) or cut (staple). Additionally, if the yarn is put up for retail sale, it must be classified under heading 5406.
Top exporters and importers of HS 540331 (the code used for viscose filament yarn), 2025
In 2025, the largest exporter of HS 540331 (the code used for viscose filament yarn) 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.
Figures cover everything classified under HS 540331, not only viscose filament yarn.
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 viscose filament yarn
Brazil splits HS 5403.31 into 2 NCM codes. Pick the one that matches your product:
- 5403.31.10Unbleached/bleached viscose yarn, max 120 turns/m
- 5403.31.90Other viscose single yarn, max 120 turns/m
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about viscose filament yarn
What is the HS code for Viscose filament yarn?
The HS code for Viscose filament yarn is 540331 (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). The standard HS code for single, untwisted or low-twist viscose filament yarn not for retail sale is 5403.31.
How do I classify Viscose filament yarn for customs?
Viscose filament yarn is classified under HS code 540331 — 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 is a 6-digit subheading level code.
What is the difference between 5403.31 and 5403.41?
HS code 5403.31 is for single yarns, whereas 5403.41 is for multiple (folded) or cabled yarns made from viscose rayon filaments.
Which countries are the top exporters of viscose filament yarn (HS 540331)?
In 2025, the top exporters of HS 540331 (the code used for viscose filament yarn) 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 viscose filament yarn (HS 540331)?
In 2025, the top importers of HS 540331 (the code used for viscose filament yarn) 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.
Is the HS code for Viscose filament yarn the same in all countries?
The base HS code 540331 for Viscose filament 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 viscose filament yarn in Brazil?
Brazil splits HS 540331 into 2 NCM codes, so the right one for viscose filament yarn depends on the product's details: 5403.31.10 (Unbleached/bleached viscose yarn, max 120 turns/m), 5403.31.90 (Other viscose single yarn, max 120 turns/m).