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U.S. exports of single cellulose acetate filament yarn (not for retail sale) (HS 540333) totaled $14.1M in July 2026.
Importers of Single Cellulose Acetate Filament Yarn (Not for Retail Sale) paid $74K in duties in July 2026 — an effective duty rate of 18% on $403K in dutiable value, based on actual customs collections rather than the published tariff schedule. Single Cellulose Acetate Filament Yarn (Not for Retail Sale) imports of $403K in July 2026 ran 105% above the year-to-date monthly average of $196K.
Last updated: July 2026 dataCellulose acetate filament yarn — derived from wood pulp acetylation rather than petroleum — offers a silk-like luster and soft hand that synthetic fibers replicate poorly, making it a preferred input for luxury linings, cigarette filter tow precursors, and high-end woven apparel. The US schedule subdivides by filament count and twist: untwisted or below 5 turns/meter (5403330020) and multifilament constructions above 5 turns/meter with finer decitex (5403330040). Japan and Italy are the leading suppliers, reflecting the concentration of acetate yarn production among a small number of specialty chemical-fiber producers. Canada's presence among top sources means some trade may qualify for USMCA preferential treatment, subject to applicable textile rules of origin.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
2 shipments/mo
The HTS treats them as distinct fiber types within Chapter 54. Acetate yarn falls under heading 5403.33 (single) or 5403.42 (multiple/cabled), while viscose rayon occupies headings 5403.31–5403.32 and 5403.41. The chemical distinction — acetylation of cellulose versus xanthate regeneration — must be confirmed by fiber content testing or mill certification; misidentification between the two is a documented classification error.
The US 10-digit breakdown at 5403330040 specifically targets multifilament acetate yarn twisted at or above 5 turns/meter with a linear density below 67 decitex. Yarn at or above 67 decitex in the same twist range falls under the broader 5403330020 line. Importers should confirm decitex from the mill's technical specification to select the correct 10-digit line.
HSChapter 54
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Subheading 4 of 8 in heading 5403
Subheading 540333 · $403K of $9.5M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 5403330020 | Cell Ace Mono/Multiflmnt Untwst/Twst Lt 5 Trns/M | $380K | 18.80% | 100.00% | $71K |
| 5403330040 | Cell Ace Multi Yarn Twst Gt=5 Tr/M Lt 67 Decitex | $23K | 10.00% | 100.00% | $2K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5403330000 | Art Fil Yarn Exc Sew No Retail Sing Cell Acetate | $14.1M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$403KYoY · Pro
Exports
$14.1MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
United Arab Emirates and China together take 56% of it.
customs district
origin
entry
rate provision · imports
the effective duty rate is 18.30%.