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U.S. imports of woven fabrics of acrylic or modacrylic staple fibers, under 85%, mixed with manmade filaments (HS 551521) totaled $454K in July 2026, traded with 16 countries.
Importers of Woven Fabrics of Acrylic or Modacrylic Staple Fibers, Under 85%, Mixed with Manmade Filaments paid $43K in duties in July 2026 — an effective duty rate of 11% on $374K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataAcrylic and modacrylic staple fibers blended with manmade filaments produce woven fabrics valued for their wool-like softness, colorfastness, and flame-retardant properties — the modacrylic variant in particular is used in protective and flame-resistant textile applications. Turkey is the leading US supplier under this heading, with Germany and Italy also significant sources, reflecting European expertise in specialty acrylic weaving. The US schedule includes poplin/broadcloth (5515210010), printcloth (5515210030), satin/twill weaves (5515210040), and a residual NESOI line (5515210090). Distinguishing acrylic from modacrylic is relevant for end-use compliance but both fiber types share this heading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
149 shipments/mo
Both acrylic (85% or more acrylonitrile units) and modacrylic (35–85% acrylonitrile units) staple fibers are covered together under heading 551521, so the distinction does not affect the heading-level classification. However, modacrylic's flame-retardant characteristics may trigger separate product safety or flammability compliance requirements depending on the end-use application.
The secondary fiber being a manmade filament — rather than a staple fiber such as viscose rayon or wool — is the defining feature of heading 551521. If the secondary fiber is wool or fine animal hair, the fabric moves to 551522; if it is another staple fiber, it falls under 551529. Yarn construction records from the mill are the most reliable way to confirm filament versus staple status.
HSChapter 55
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Subheading 5 of 9 in heading 5515
Subheading 551521 · $454K of $8.2M
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 |
|---|---|---|---|---|---|
| 5515210090 | Oth Wov Fab Syn Acr/Mac Sf Mx M/S Mnm Fil Ot-NESOI | $477K | 12.28% | 100.00% | $59K |
| 5515210040 | Oth Wov Fab Syn Acr/Mac Sf Mx M/S Mnm Fil St/Tw W | $18K | 10.00% | 100.00% | $2K |
| 5515210030 | Oth Wov Fab Syn Acr/Mac Sf Mx M/S Mnm Fil Printcth | $2K | 10.03% | 100.00% | $233 |
| 5515210010 | Oth Wov Fab Syn Acr/Mac Sf Mx M/S Mnm Fil Pop/Brdc | $2K | 10.02% | 100.00% | $182 |
| 5515210020 | Oth Wov Fab Syn Acr/Mac Sf Mx M/S Mnm Fil Sheeting | $0 | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5515210000 | Oth Wov Fab Syn Acr/Macr St Fb Mixed M/S Mnm Filmt | $243K |
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
$454KYoY · Pro
Exports
$315KYoY · Pro
12-mo low · imports
YoY · ProFewer than 6 of the last 12 months reported trade above $500K; the trend chart is not shown for thin series.
Through July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Turkey and Italy together supply 78% of it.
customs district
destination
entry
rate provision · imports
17.6% enters free of duty; the effective duty rate is 9.40%.