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U.S. imports of synthetic filament tow, not elsewhere specified (HS 550190) totaled $1.8M in July 2026, traded with 8 countries.
Importers of Synthetic Filament Tow, Not Elsewhere Specified paid $295K in duties in July 2026 — an effective duty rate of 16% on $1.8M in dutiable value, based on actual customs collections rather than the published tariff schedule. Synthetic Filament Tow, Not Elsewhere Specified imports of $1.8M in July 2026 ran 57% above the year-to-date monthly average of $1.2M.
Last updated: July 2026 dataThe residual synthetic filament tow heading captures polymer types not covered by the specific aramid, polyamide, polyester, acrylic, or polypropylene subheadings — including specialty fibers such as polyvinyl alcohol, polyethylene, or other engineered polymers. Hungary leads US supply under this heading, followed by Mexico and Italy, a supplier mix that reflects niche production of specialty tow in European and North American facilities. Correct classification requires confirming that the fiber polymer does not belong to any of the named headings 550111–550140.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
14 shipments/mo
Polyvinyl alcohol (PVA), polyethylene, polylactic acid (PLA), and other specialty copolymer tows that do not meet the polymer definitions of aramid, polyamide, polyester, acrylic, or polypropylene are the most frequent candidates. Importers should obtain a detailed polymer composition certificate to support the NESOI classification and be prepared to justify why the product does not fall under a more specific subheading.
Mexico is a USMCA partner, and qualifying goods of Mexican origin may be eligible for preferential tariff treatment under USMCA, provided the product meets the applicable rules of origin. Importers should verify origin qualification with a licensed customs broker, as fiber inputs and processing steps affect whether the tow meets the textile-specific rule of origin.
HSChapter 55
Subheading 1 of 6 in heading 5501
Subheading 550190 · $1.8M of $3.0M
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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 |
|---|---|---|---|---|---|
| 5501900100 | Synthetic Filament Tow, Other | $1.5M | 17.50% | 100.00% | $260K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5501900100 | Synthetic Filament Tow, Other | $1.5M |
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
$1.8MYoY · Pro
Exports
$845KYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Hungary and Spain together supply 100% of it.
customs district
destination
entry
rate provision · imports
the effective duty rate is 16.14%.