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HSChapter 55
U.S. imports of retail-pack artificial staple fiber yarn (except sewing thread) (HS 551130) totaled $200K in April 2026, traded with 12 countries.
Importers of Retail-Pack Artificial Staple Fiber Yarn (Except Sewing Thread) paid $51K in duties in April 2026 — an effective duty rate of 26% on $198K in dutiable value, based on actual customs collections rather than the published tariff schedule. Retail-Pack Artificial Staple Fiber Yarn (Except Sewing Thread) imports of $200K in April 2026 ran 25% below the year-to-date monthly average of $265K.
Last updated: April 2026 dataArtificial staple fiber yarns — made from regenerated cellulosic fibers such as viscose rayon or modal — packaged for retail sale are classified under the single US tariff line 5511300000. Unlike synthetic staple fiber yarns, the fiber base here is man-made but cellulosic in origin, a distinction that drives both classification and end-use: these yarns are widely used in apparel knitting and weaving where a softer hand and moisture management are priorities. China is the dominant supplier, with Turkey and Pakistan also contributing meaningfully to US import volumes. Importers should verify fiber content documentation carefully, as the artificial-versus-synthetic distinction is a frequent source of classification disputes.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Artificial staple fibers are man-made fibers derived from natural cellulosic polymers — primarily viscose rayon, modal, lyocell, and cupro. They are distinct from synthetic staple fibers (polyester, nylon, acrylic), which are derived from petrochemical polymers. The fiber origin determines whether a retail-pack yarn falls under 5511300000 (artificial) or the 5511100000/5511200000 lines (synthetic).
Customs authorities look for evidence that the yarn is packaged and labeled for direct sale to end consumers — including unit weight markings, care instructions, and consumer-facing branding. Commercial invoices describing the goods as 'put up for retail sale' and samples of the packaging are useful supporting documents during CBP review.
Supplier Network
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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 |
|---|---|---|---|---|
| 5511300000 | YRN NT SWG TH MMF STP FIB PT UP RT SL ART STP FIB | $200K | 25.57% | $51K |
YRN NT SWG TH MMF STP FIB PT UP RT SL ART STP FIB
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5511300000 | YRN NT SWG TH MMF STP FIB PT UP RT SL ART STP FIB | $47K |
YRN NT SWG TH MMF STP FIB PT UP RT SL ART STP FIB
6.3K kg
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 |
|---|---|---|---|
| Oklahoma | $123K | -- | -$123K |
| Unidentified | -- | $35K | +$35K |
| Washington | $30K | -- | -$30K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| SAVANNAH, GA | $124K | -- | -$124K |
| LOW VALUE | -- | $35K | +$35K |
| SEATTLE, WA | $30K | -- | -$30K |