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HSChapter 54
U.S. imports of high-tenacity viscose rayon filament yarn (HS 540310) totaled $623K in April 2026, traded with 4 countries.
Importers of High-Tenacity Viscose Rayon Filament Yarn paid $122K in duties in April 2026 — an effective duty rate of 20% on $623K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataHigh-tenacity viscose rayon yarn is engineered for reinforcement applications — tire cord, industrial hose, and conveyor belting — where tensile strength requirements exceed those of standard textile-grade rayon. The US schedule subdivides this heading by construction and twist level: monofilament/multifilament untwisted or twisted below 5 turns/meter (5403103020), at or above 5 turns/meter (5403103040), and multiple or cabled constructions (5403106000). Germany and Italy are the leading sources, reflecting the concentration of industrial rayon production in European specialty chemical groups. Importers should note that high-tenacity rayon for tire cord may require additional documentation to distinguish it from lower-grade viscose yarn at entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
CBP and the HTS use tenacity thresholds defined in the chapter notes — high-tenacity yarn must meet a minimum breaking tenacity (measured in cN/tex) specified for viscose rayon. Mill test certificates showing tenacity values are the primary supporting document; yarn that does not meet the threshold falls under the single-yarn subheadings in heading 5403.31 instead.
Production of high-tenacity rayon requires specialized continuous-filament spinning lines and proprietary wet-spinning chemistry that only a handful of European chemical-fiber groups operate at commercial scale. This concentration means US buyers face limited alternative sources, making supply-chain disruptions — such as plant maintenance shutdowns — a meaningful procurement risk.
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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 |
|---|---|---|---|---|
| 5403103040 | VISC YN HI TNCTY MONO/MULTIFLMNT UNT/TW GT=5 TRN/M | $338K | 20.00% | $68K |
| 5403106000 | VISCOSE RAYON HI TENCITY MULTIPLE/CABLED NT RETAIL | $285K | 19.10% | $54K |
| 5403103020 | VISC YN HI TNCTY MONO/MULTIFLMNT UNT/TW LT 5 TRN/M | $0 | -- | -- |
VISC YN HI TNCTY MONO/MULTIFLMNT UNT/TW GT=5 TRN/M
VISCOSE RAYON HI TENCITY MULTIPLE/CABLED NT RETAIL
VISC YN HI TNCTY MONO/MULTIFLMNT UNT/TW LT 5 TRN/M
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5403100000 | ART FIL YN EX SEW NO RET HI TEN VISC RAYON | $207K |
ART FIL YN EX SEW NO RET HI TEN VISC RAYON
21.3K kg
SYNTHETIC FILAMENT YARN FABRIC FROM THE STRIP
HS 540720
SYN FIL YARN EX SEWING NO RETAIL, POLYESTER
HS 540220
SYNTHETIC STRIP WIDTH NOT > 5MM
HS 540490
SYN FIL YN EXSEW NO RT TX POLYESTER
HS 540233
SYNT FILMT YRN, HIGH TENACITY YARN OF ARAMIDS
HS 540211
SYNT YARN,HIGH TENACTY, NYLON/ OTHR POLYAMIDES,NES
HS 540219
| State | Imports | Exports | Balance |
|---|---|---|---|
| Georgia | $623K | $70K | -$553K |
| New Jersey | -- | $86K | +$86K |
| Virginia | -- | $42K | +$42K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| CHARLESTON, SC | $338K | -- | -$338K |
| SAVANNAH, GA | $285K | -- | -$285K |
| CHAMPLAIN-ROUSES POINT, NY | -- | $86K | +$86K |