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Harmonized System
U.S. imports of glass fiber yarn and slivers (HS 701913) totaled $10.3M in July 2026, traded with 15 countries.
Importers of Glass Fiber Yarn and Slivers paid $725K in duties in July 2026 — an effective duty rate of 17% on $4.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataTwisted or assembled glass filament yarns and untwisted slivers serve the electronics, aerospace, and industrial textile sectors — printed circuit board laminates and high-temperature insulation fabrics are among the most demanding end uses. The US schedule is unusually granular, with eight 10-digit lines distinguishing colored from uncolored yarn, rubber-reinforcing yarn containing continuous filaments, yarn used as industrial packing or lubricating material, and slivers (7019133500). Mexico is the dominant supplier, with Taiwan and Latvia also significant sources.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
357 shipments/mo
The distinction turns on whether the yarn has been dyed or otherwise colored in the manufacturing process. Uncolored yarns for general use fall under lines such as 7019131540 or 7019131580, while colored counterparts classify under 7019132400 or 7019132800. Importers should obtain mill certifications confirming color treatment to support the correct line.
Rubber-reinforcing yarn (lines 7019130500 and 7019132400) consists of continuous filaments specifically engineered for embedding in rubber compounds — used in hose, belt, and tire applications. The continuous-filament construction and surface treatment differ from standard textile yarns, and customs may request technical specifications or end-use documentation to confirm classification.
HSChapter 70
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Subheading 5 of 18 in heading 7019
Subheading 701913 · $10.3M of $151.4M
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 |
|---|---|---|---|---|---|
| 7019131580 | Glass Fiber/Wool Yarns, Not Colored, Other | $9.4M | 7.12% | 41.98% | $671K |
| 7019133500 | Slivers of Glass Fibers | $628K | 6.54% | 46.00% | $41K |
| 7019132400 | Fbrgls Rbr Reinfrc Yrn, Clrd, Cont Filmnts, Etc | $85K | 0.00% | 0.00% | -- |
| 7019131540 | Othr Gls Fbr Yarns Nt Colrd Indstry Pckg O Lub Mtr | $59K | 15.39% | 93.26% | $9K |
| 7019130500 | Fbrgls Rbr Reinfrc Yrn Nt Clrd Cont Flmnt Etc. | $59K | 5.49% | 50.68% | $3K |
| 7019132800 | Glass Fiber Yarn, Colored, NESOI | $2K | 44.20% | 131.27% | $872 |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7019132000 | Glass Fiber Yarn, NESOI | $4.2M |
| 7019131000 | Glass Fbr Yarn, Nt Clrd, In Ind As Pckg O Lub Mtrl | $2.2M |
| 7019133500 | Slivers of Glass Fibers | $72K |
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
$10.3MYoY · Pro
Exports
$6.4MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Mexico and Taiwan together supply 83% of it.
customs district
destination
entry
rate provision · imports
57.8% enters free of duty; the effective duty rate is 7.07%.