Product classification
HS code for Acetate filament yarn: 5403.33
Yarn, artificial, filament, monofilament (less than 67 decitex), of cellulose acetate, single, not for retail sale, not sewing thread.
Classification of acetate filament yarn under HS 5403.33
Acetate filament yarn (single) is classified under HS code 5403.33. This code is part of Chapter 54, which deals with man-made filaments. Heading 5403 specifically covers artificial filament yarn, including monofilament of less than 67 decitex. Subheading 5403.33 is designated for single yarns of cellulose acetate that are not intended for retail sale and are not categorized as sewing thread. The classification is based on the material (cellulose acetate), the yarn structure (single strand), and the decitex measurement. This yarn is typically used in the production of apparel linings, home furnishings, and various textile fabrics where a silk-like appearance and drape are desired. Because it is an artificial fiber (regenerated cellulose), it is strictly separated from synthetic fibers like polyester or nylon, which fall under heading 5402.
- Covers
- Single cellulose acetate filament yarn
- Untwisted acetate filament
- Low-twist acetate yarn for weaving
- Acetate monofilament (less than 67 decitex)
- Also under 5403.33
- Celanese Acetate Filament
- Eastman Acetate Yarn
- Mitsubishi Rayon Acetate
Codes often confused with 5403.33
Common mistake. A frequent error is confusing 5403.33 with 5403.42. The latter is used for multiple or cabled yarns, whereas 5403.33 is strictly for single strands. Another common misclassification involves synthetic filament yarns under heading 5402; acetate is artificial, not synthetic, so it must stay in 5403. Additionally, if the filament exceeds 67 decitex and has a cross-sectional dimension exceeding 1mm, it may be classified as monofilament under heading 5405.00 rather than yarn.
Top exporters and importers of HS 540333 (the code used for acetate filament yarn), 2025
In 2025, the largest exporter of HS 540333 (the code used for acetate filament yarn) in UN Comtrade data was the United States, with 77% of world exports; the largest importer in UN Comtrade data was China, with 26% 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 540333, not only acetate filament yarn.
Top exporters 2025 · share of world exports
- 1 United States $189M 77% of world exports
- 2 Lithuania $21M 8.5% of world exports
- 3 Japan $11M 4.4% of world exports
World total: $245M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $81M 26% of world imports
- 2 South Korea $69M 22% of world imports
- 3 Italy $55M 17% of world imports
World total: $314M 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 code for acetate filament yarn
Brazil classifies acetate filament yarn under NCM 5403.33.00: HS 5403.33 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about acetate filament yarn
What is the HS code for Acetate filament yarn?
The HS code for Acetate filament yarn is 540333 (Yarn, artificial; filament, monofilament (less than 67 decitex), of cellulose acetate, single, not for retail sale, not sewing thread). The HS code for single acetate filament yarn, not for retail sale, is 5403.33.
How do I classify Acetate filament yarn for customs?
Acetate filament yarn is classified under HS code 540333 — Yarn, artificial; filament, monofilament (less than 67 decitex), of cellulose acetate, single, not for retail sale, not sewing thread. This is a 6-digit subheading level code.
Can this code be used for acetate sewing thread?
No, acetate sewing thread is classified under heading 5401.20, provided it meets the definition of sewing thread in the HS Explanatory Notes.
Which countries are the top exporters of acetate filament yarn (HS 540333)?
In 2025, the top exporters of HS 540333 (the code used for acetate filament yarn) in UN Comtrade data were the United States ($189M, 77% of world exports), Lithuania ($21M) and Japan ($11M). World exports came to about $245M, 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 acetate filament yarn (HS 540333)?
In 2025, the top importers of HS 540333 (the code used for acetate filament yarn) in UN Comtrade data were China ($81M, 26% of world imports), South Korea ($69M) and Italy ($55M). World imports came to about $314M, 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 Acetate filament yarn the same in all countries?
The base HS code 540333 for Acetate 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 acetate filament yarn in Brazil?
In Brazil, acetate filament yarn (HS 540333) is classified under NCM 5403.33.00.