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HSChapter 70
U.S. imports of glass fiber yarn and slivers (HS 701913) totaled $9.9M in April 2026, traded with 14 countries.
Importers of Glass Fiber Yarn and Slivers paid $597K in duties in April 2026 — an effective duty rate of 16% on $3.8M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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.
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.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 7019131580 | GLASS FIBER/WOOL YARNS, NOT COLORED, OTHER | $9.1M | 15.91% | $499K |
| 7019133500 | SLIVERS OF GLASS FIBERS | $631K | 15.42% | $75K |
| 7019130500 | FBRGLS RBR REINFRC YRN NT CLRD CONT FLMNT ETC. | $195K | 10.25% | $19K |
| 7019132800 | GLASS FIBER YARN, COLORED, NESOI | $25K | 17.00% | $4K |
| 7019131540 | OTHR GLS FBR YARNS NT COLRD INDSTRY PCKG O LUB MTR | $356 | -- | -- |
| 7019132400 | FBRGLS RBR REINFRC YRN, CLRD, CONT FILMNTS, ETC | $294 | 9.86% | $29 |
GLASS FIBER/WOOL YARNS, NOT COLORED, OTHER
SLIVERS OF GLASS FIBERS
FBRGLS RBR REINFRC YRN NT CLRD CONT FLMNT ETC.
GLASS FIBER YARN, COLORED, NESOI
OTHR GLS FBR YARNS NT COLRD INDSTRY PCKG O LUB MTR
FBRGLS RBR REINFRC YRN, CLRD, CONT FILMNTS, ETC
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7019132000 | GLASS FIBER YARN, NESOI | $5.3M |
| 7019131000 | GLASS FBR YARN, NT CLRD, IN IND AS PCKG O LUB MTRL | $691K |
| 7019133500 | SLIVERS OF GLASS FIBERS | $103K |
GLASS FIBER YARN, NESOI
226.3K kg
GLASS FBR YARN, NT CLRD, IN IND AS PCKG O LUB MTRL
51.6K kg
SLIVERS OF GLASS FIBERS
2.3K kg
GLASS ARTICL. FOR CONVEYANCE/PACKING OF GOODS,NESO
HS 701090
TOUGHNED SAFETY GLASS, NOT FOR VEHICULAR USE
HS 700719
OTHER GLASSWARE, NOT LEAD CRYSTAL, NESOI
HS 701399
GLASS WOOL AND ARTICLES OF GLASS WOOL
HS 701980
REAR-VIEW MIRRORS FOR VEHICLES
HS 700910
GLASS MIRRORS, FRAMED, EXC REARVIEW
HS 700992
| State | Imports | Exports | Balance |
|---|---|---|---|
| South Carolina | $2.0M | $5.1M | +$3.1M |
| Alabama | $2.0M | -- | -$2.0M |
| New York | $1.1M | $81K | -$1.1M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $5.9M | $241K | -$5.7M |
| CHARLESTON, SC | $2.6M | $2.0M | -$583K |
| ATLANTA, GA | -- | $3.1M | +$3.1M |