Harmonized System
U.S. imports of Woven Fabrics of Acrylic or Modacrylic Staple Fibers, Under 85%, Mixed with Manmade Filaments (HS 551521) totaled $467K in August 2026, imported from 16 countries.
Importers of Woven Fabrics of Acrylic or Modacrylic Staple Fibers, Under 85%, Mixed with Manmade Filaments paid $55K in duties in August 2026, an average duty rate of 11.69% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 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.
119 import shipments a month
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.
ImportsExports
Imports
$467KYoY · free account
Exports
$99KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $5.8M of Woven Fabrics of Acrylic or Modacrylic Staple Fibers, Under 85%, Mixed with Manmade Filaments and exported $4.7M.
Fewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026. Source: U.S. Census Bureau.
Subheading 6 of 9 in heading 5515
Subheading 551521 · $467K of $11.3M
Imports · August 2026
origin
Turkey and Italy together supply 83% of it. China pays 37.5% duty; Taiwan 0.0%.
customs district
destination
entry
rate provision · imports
3.3% enters free of duty; duty collected equals 11.69% of imports for consumption.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 5515210090 | Oth Wov Fab Syn Acr/Mac Sf Mx M/S Mnm Fil Ot-NESOI | $449K | 12.09% | 100.00% | $54K |
| 5515210040 | Oth Wov Fab Syn Acr/Mac Sf Mx M/S Mnm Fil St/Tw W | $17K | 1.26% | 10.04% | $215 |
| 5515210030 | Oth Wov Fab Syn Acr/Mac Sf Mx M/S Mnm Fil Printcth | $681 | 9.99% | 100.00% | $68 |
| 5515210010 | Oth Wov Fab Syn Acr/Mac Sf Mx M/S Mnm Fil Pop/Brdc | — | -- | -- | -- |
| 5515210020 | Oth Wov Fab Syn Acr/Mac Sf Mx M/S Mnm Fil Sheeting | — | -- | -- | -- |
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 | $99K |
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.
Trade Directory
List your company under HS 551521 — Woven Fabrics of Acrylic or Modacrylic Staple Fibers, Under 85%, Mixed with Manmade Filaments, so the companies trading it can find you. Be the first supplier listed.