Harmonized System
U.S. imports of Polyester Filament Yarn, Single, Twisted Over 50 Turns/Meter, Not for Retail Sale (HS 540252) totaled $33K in September 2026, imported from 20 countries.
Polyester Filament Yarn, Single, Twisted Over 50 Turns/Meter, Not for Retail Sale imports of $33K in September 2026 ran 71% below the year-to-date monthly average of $113K.
Last updated: September 2026 dataPolyester single yarn with a twist exceeding 50 turns per meter serves crêpe fabric, fine woven apparel, and specialty textile markets where high-twist geometry is a functional specification rather than a processing artifact. Three 10-digit lines subdivide the heading: 5402520000 for the general category, 5402521000 for yarns in the 75–80 decitex range, and 5402529000 for other high-twist polyester filament yarns not covered by the decitex-specific line. Malaysia leads US imports under this heading, followed by Mexico and Switzerland — an unusual supplier mix that reflects both regional textile manufacturing and specialty yarn production in Europe. The decitex-band line (5402521000) mirrors a similar split seen in the low-twist polyester heading, so importers familiar with that structure will recognize the classification logic.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
7 import shipments a month
The 75–80 decitex band (line 5402521000) corresponds to a fine-denier range commonly used in lightweight woven apparel and crêpe fabrics, where duty treatment or trade-remedy scope may differ from coarser or finer yarns. The same decitex window appears in the low-twist polyester heading, reflecting a consistent US tariff-schedule approach to this commercially significant fineness range. Importers should measure linear density carefully, as yarns just outside the band fall into 5402529000.
Manufacturer's technical data sheets, mill test certificates, or independent laboratory reports using standardized twist-count methods are the most reliable supporting documents. Because the 50-turns-per-meter threshold is the dividing line between two distinct HTS headings with potentially different duty rates, CBP may request physical samples for testing if the documentation is ambiguous.
ImportsExports
Imports
$33KYoY · free account
Exports
—YoY · free account
12-mo low · imports
Low · free accountOver the twelve months to September 2026, the U.S. imported $1.3M of Polyester Filament Yarn, Single, Twisted Over 50 Turns/Meter, Not for Retail Sale.
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 September 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 540252 — Polyester Filament Yarn, Single, Twisted Over 50 Turns/Meter, Not for Retail Sale, so the companies trading it can find you. Be the first supplier listed.
Subheading 18 of 22 in heading 5402
Subheading 540252 · $33K of $62.2M
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 |
|---|---|---|---|---|---|
| 5402529000 | Polyester Fila Yn Twist Gt 50 Turns/M Nt Ret Sale | $111K | 9.10% | 30.87% | $10K |
| 5402521000 | Poly Twist Gt 50 Turns/Met,(75-80)Decitex | $53K | 19.12% | 100.00% | $10K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5402520000 | Polyester Fila Yn Twist Gt 50 Trn/M Nt Retail Sale | $174K |
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.
Imports · September 2026
origin
Mexico and Latvia together supply 92% of it. Turkey pays 21.4% duty; Mexico 0.8%.
customs district
destination
entry
rate provision · imports
80.5% enters free of duty; duty collected equals 2.57% of imports for consumption.