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U.S. imports of wool tops and other combed wool (not in fragments) (HS 510529) totaled $444K in July 2026, traded with 29 countries.
Importers of Wool Tops and Other Combed Wool (Not in Fragments) paid $63K in duties in July 2026 — an effective duty rate of 14% on $439K in dutiable value, based on actual customs collections rather than the published tariff schedule. Wool Tops and Other Combed Wool (Not in Fragments) imports of $444K in July 2026 ran 45% above the year-to-date monthly average of $306K.
Last updated: July 2026 dataContinuous wool tops — the primary worsted-spinning input produced by combing long-staple wool into aligned, parallel fiber — are classified under tariff line 5105290000 and are a foundational commodity for fine suiting, hosiery, and technical textile production. Uruguay and the United Kingdom are the leading US suppliers, with China, Australia, and Argentina also contributing; the Southern Hemisphere origins reflect the dominance of Merino and Corriedale breeds in fine-wool production.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
70 shipments/mo
Worsted mills generally specify fiber diameter in microns (e.g., 18–22 microns for fine Merino tops), staple length, vegetable matter content, and yield percentage. These specifications are typically documented in a wool test certificate issued by an accredited testing laboratory and accompany the commercial invoice. Misrepresentation of micron count can affect both classification and downstream product labeling compliance.
Both subheadings fall within the same HTS chapter and carry similar duty structures, but they are distinct tariff lines and must be classified based on the physical form of the combed wool at the time of importation. Continuous tops (510529) and fragmented combed wool (510521) should not be commingled on a single entry line; separate line items are required if both forms are present in a shipment.
HSChapter 51
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ImportsExports
Imports
$444KYoY · Pro
Exports
$7KYoY · Pro
12-mo low · imports
YoY · ProFewer than 6 of the last 12 months reported trade above $500K; the trend chart is not shown for thin series.
Through July 2026. Source: U.S. Census Bureau.
Subheading 1 of 6 in heading 5105
Subheading 510529 · $444K of $511K
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 |
|---|---|---|---|---|---|
| 5105290000 | Wool Tops and Other Combed Wool (Not in Fragments) | $444K | 14.17% | 98.92% | $63K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5105290000 | Wool Tops and Other Combed Wool (Not in Fragments) | $7K |
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.
Imports · July 2026
origin
Uruguay and Czech Republic together supply 72% of it.
customs district
destination
entry
rate provision · imports
1.1% enters free of duty; the effective duty rate is 14.17%.