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HSChapter 55
U.S. imports of artificial staple fibers (non-viscose), not processed for spinning (HS 550490) totaled $3.3M in April 2026, traded with 7 countries.
Importers of Artificial Staple Fibers (Non-Viscose), Not Processed for Spinning paid $476K in duties in April 2026 — an effective duty rate of 14% on $3.3M in dutiable value, based on actual customs collections rather than the published tariff schedule. Artificial Staple Fibers (Non-Viscose), Not Processed for Spinning imports of $3.3M in April 2026 ran 11% above the year-to-date monthly average of $3.0M.
Last updated: April 2026 dataModal, lyocell, cupro, and other non-viscose regenerated cellulose staple fibers in unprocessed form are classified here, all entering under tariff line 5504900000. These fibers command premium positioning in apparel and home textile supply chains due to their superior softness, moisture management, and biodegradability compared to standard viscose. Austria and the United Kingdom are the leading US suppliers, reflecting the global dominance of a small number of specialty producers in this technically demanding fiber category.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes. Lyocell is produced via a closed-loop solvent spinning process distinct from the viscose process, so it is not classified as viscose rayon under 550410. Unprocessed lyocell staple fiber falls under 550490 (5504900000), which covers artificial staple fibers other than viscose rayon. Importers should ensure the commercial invoice and packing list specify the fiber type and production process to support this classification.
A mill-issued fiber specification sheet identifying the polymer type (e.g., lyocell, modal, cupro) and production process is the most useful supporting document. For branded fibers such as Tencel or Lenzing Modal, a certificate of authenticity from the fiber producer can also serve as evidence of fiber identity. CBP may request this documentation during a CF-28 or CF-29 inquiry if the fiber type is not clearly stated on the commercial invoice.
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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 |
|---|---|---|---|---|
| 5504900000 | ART STP FIB NOT CRD, CMB OR PRSD SPNG: OTH VIS RYN | $3.3M | 14.30% | $476K |
ART STP FIB NOT CRD, CMB OR PRSD SPNG: OTH VIS RYN
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5504900000 | ART STP FIB NOT CRD, CMB OR PRSD SPNG: OTH VIS RYN | $5.1M |
ART STP FIB NOT CRD, CMB OR PRSD SPNG: OTH VIS RYN
SYN STP FIB NT CRD, CMB OR PRSD SPNG, OF POLYESTER
HS 550320
ARTIF STP FIB NT CRD, CMB OR PRSD SPNG, VIS RAYON
HS 550410
YRN N SW TH MM ST FIB RT SL SYN STP FIB >=85% S FB
HS 551110
STPL FIB ARAMIDS NOT CARD/COMBD/PRCSD FOR SPINNING
HS 550311
SYN STP FIB NT CRD, CMB OR PRSD SPNG, ACRY/MODACRY
HS 550330
SYN STP FIB NOT CARD, CMB OR PRSD SPNG, NESOI
HS 550390
| State | Imports | Exports | Balance |
|---|---|---|---|
| Alabama | -- | $3.6M | +$3.6M |
| South Carolina | $1.3M | -- | -$1.3M |
| North Carolina | $1.2M | $13K | -$1.2M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| MOBILE, AL | -- | $3.6M | +$3.6M |
| CHARLESTON, SC | $1.8M | $823K | -$927K |
| SAVANNAH, GA | $1.0M | $399K | -$634K |