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HSChapter 55
U.S. imports of polyester staple fiber yarn mixed mainly with artificial staple fibers, under 85% polyester, not for retail sale (HS 550951) totaled $176K in April 2026, traded with 6 countries.
Importers of Polyester Staple Fiber Yarn Mixed Mainly with Artificial Staple Fibers, Under 85% Polyester, Not for Retail Sale paid $16K in duties in April 2026 — an effective duty rate of 20% on $79K in dutiable value, based on actual customs collections rather than the published tariff schedule. Polyester Staple Fiber Yarn Mixed Mainly with Artificial Staple Fibers, Under 85% Polyester, Not for Retail Sale imports of $176K in April 2026 ran 22% above the year-to-date monthly average of $144K.
Last updated: April 2026 dataPolyester-dominant blended yarns where the polyester content falls below 85% by weight and the secondary fiber is mainly artificial staple fiber (viscose/rayon, modal, lyocell, etc.) are classified here — a blend category widely used in apparel and home textile weaving. The US schedule includes three lines: 5509510000 (general), 5509513000 (single yarn), and 5509516000 (multiple or cabled yarn). Canada and Indonesia are the leading suppliers, with India, China, and Mexico also contributing. The polyester-viscose blend is particularly common in shirting and lining fabrics, making accurate fiber-ratio documentation critical for correct classification.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
'Mixed mainly' means the artificial staple fiber (e.g., viscose, modal, lyocell) is the predominant non-polyester component by weight. If cotton or wool exceeds the artificial fiber content in the blend, the yarn would shift to 550953 (cotton) or 550952 (wool/fine animal hair) respectively. Fiber analysis documentation from the mill is the standard evidence used to support the declared classification.
5509513000 covers single-strand polyester/artificial staple blended yarn, while 5509516000 covers the same fiber blend in a plied or cabled construction. The distinction matters because the two lines may carry different duty rates and are tracked separately for trade statistics. Importers should confirm the yarn's construction — single versus plied — with the manufacturer before classification.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $97K | -- | -$97K |
| INDONESIA | $53K | -- | -$53K |
| INDIA | $26K | -- | -$26K |
| MEXICO | -- | $6K | +$6K |
| NETHERLANDS | -- | -- | -- |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 5509516000 | YRN N SWG TD SYN ST F N RT SL O PY ST F M AS F MCY | $97K | -- | -- |
| 5509513000 | YRN N SWG TD SYN ST F N RT SL O PY ST F M AS F S Y | $79K | 19.70% | $16K |
YRN N SWG TD SYN ST F N RT SL O PY ST F M AS F MCY
YRN N SWG TD SYN ST F N RT SL O PY ST F M AS F S Y
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5509510000 | YR N SW THD SYN ST FB N RT SL PLY S F MIX M/S ART | $6K |
YR N SW THD SYN ST FB N RT SL PLY S F MIX M/S ART
1.3K 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 |
|---|---|---|---|
| South Carolina | $52K | -- | -$52K |
| North Carolina | $42K | -- | -$42K |
| California | $36K | -- | -$36K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| ALEXANDRIA BAY, NY | $52K | -- | -$52K |
| PORT HURON, MI | $45K | -- | -$45K |
| LOS ANGELES, CA | $36K | -- | -$36K |