HSChapter 54
U.S. imports of high-tenacity viscose rayon filament yarn (HS 540310) totaled $638K in July 2026, traded with 5 countries.
Importers of High-Tenacity Viscose Rayon Filament Yarn paid $125K in duties in July 2026 — an effective duty rate of 20% on $638K in dutiable value, based on actual customs collections rather than the published tariff schedule. High-Tenacity Viscose Rayon Filament Yarn imports of $638K in July 2026 ran 31% above the year-to-date monthly average of $488K.
Last updated: July 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.
3 shipments/mo
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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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 |
|---|---|---|---|---|---|
| 5403103040 | Visc Yn Hi Tncty Mono/Multiflmnt Unt/Tw Gt=5 Trn/M | $349K | 20.00% | 100.00% | $70K |
| 5403106000 | Viscose Rayon Hi Tencity Multiple/Cabled Nt Retail | $288K | 19.10% | 100.00% | $55K |
| 5403103020 | Visc Yn Hi Tncty Mono/Multiflmnt Unt/Tw Lt 5 Trn/M | $0 | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5403100000 | Art Fil Yn Ex Sew No Ret Hi Ten Visc Rayon | $45K |
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
$638KYoY · Pro
Exports
$45KYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Germany and Italy together supply 100% of it.
customs district
destination
entry
rate provision · imports
the effective duty rate is 19.59%.