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HSChapter 52
U.S. imports of single combed cotton yarn, 85%+ cotton, not for retail, not over 14 nm (HS 520521) totaled $33K in June 2026, traded with 13 countries.
Coarse-count single combed cotton yarn — where short fibers have been removed before spinning — delivers greater uniformity and strength than its uncombed counterpart at the same metric number, making it preferred for heavy-duty woven goods requiring a cleaner surface. Pakistan and India are the leading suppliers to the US market, with China-origin shipments subject to Section 301 tariffs. The 10-digit lines under this subheading (5205210000, 5205210020, and 5205210090) distinguish ring-spun from other spinning methods, a specification detail that affects fabric performance and buyer acceptance.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Ring spinning produces a stronger, more uniform yarn with better surface characteristics than open-end or air-jet spinning at equivalent counts. The US schedule's 10-digit line 5205210020 specifically captures ring-spun product, reflecting commercial demand distinctions that matter to fabric mills — and potentially to duty treatment under certain trade programs or quota provisions.
Customs may request a mill certificate or fiber analysis confirming the combing process. Combed yarn typically shows a more parallel fiber arrangement, fewer neps, and a smoother surface under microscopic examination. Without documentation, CBP may require laboratory testing, which can delay entry — so obtaining combing-process certification from the spinner before shipment is advisable.
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Monthly import values over time
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 |
|---|---|---|---|---|---|
| 5205210020 | SING COMB COT YARN, GT=85% COT, LT=14NM, RING SPUN | $26K | 15.80% | 100.00% | $4K |
| 5205210090 | SING COMB COT YARN, GT=85% COT, LT=14 NM, OTHER | $7K | 0.00% | 0.00% | -- |
WOV COT FAB, PR PL WV NUN 85% COT OV100NOV200G/M2
HS 520852
COTTON YARN (N SWG THD) RETAIL SALE 85% OR > WT CO
HS 520710
WOV COT FAB, DYE PL W NUN 85% COT OV100NOV200G/M2
HS 520832
WOVEN COTTON FABRICS, DENIM, 85% COT OVER 200 G/M2
HS 520942
WOV COT FAB, UNBL PL WV UN85%COT MMF NOV200G/M2
HS 521011
COT YRN N SWG THD > 85% WT COT SNG YR CM >43NM <52
HS 520523
| State | Imports | Exports | Balance |
|---|---|---|---|
| Rhode Island | $25K | -- | -$25K |
| California | $7K | -- | -$7K |
| Pennsylvania | $1K | -- | -$1K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEWARK, NJ | $25K | -- | -$25K |
| LOS ANGELES INTERNATIONAL AIRPORT, CA | $7K | -- | -$7K |
| NEW ORLEANS, LA | $1K | -- | -$1K |