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U.S. imports of silk waste (HS 500300) totaled $58K in July 2026, traded with 9 countries.
Importers of Silk Waste paid $756 in duties in July 2026 — an effective duty rate of 1.3% on $58K in dutiable value, based on actual customs collections rather than the published tariff schedule. Silk Waste imports of $58K in July 2026 ran 26% above the year-to-date monthly average of $46K.
Last updated: July 2026 dataSilk waste encompasses a range of byproduct forms — cocoons unsuitable for reeling, yarn waste, and garnetted stock — each representing a different stage of processing failure or trim loss in the silk production chain. China and Italy are the leading suppliers to the US market, consistent with their roles as the world's largest silk producer and a major luxury textile manufacturer, respectively. The US schedule divides the heading into uncarded or uncombed waste (5003001000) and other silk waste (5003009000), with the carding and combing distinction signaling how far the material has been prepared for spinning into spun silk yarn.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
7 shipments/mo
Silk waste that has not been carded or combed — meaning it has not been mechanically aligned into a fiber web or sliver — is classified under 5003001000. Waste that has undergone carding or combing falls under 5003009000. Importers should obtain processing declarations from their supplier confirming whether any fiber preparation steps were performed prior to export.
Yes. Cocoons that are pierced (where the moth has emerged), double (two larvae in one cocoon), or otherwise unsuitable for continuous filament reeling are properly classified as silk waste under HTS 500300 rather than as silkworm cocoons suitable for reeling (HTS 500100). The commercial grade assessment and any quality certificates from the exporter should document the unsuitability for reeling.
Subheading 1 of 1 in heading 5003
Subheading 500300 · $58K of $58K
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HSChapter 50
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 |
|---|---|---|---|---|---|
| 5003001000 | Silk Waste, Not Carded or Combed | $52K | 0.00% | 100.00% | -- |
| 5003009000 | Silk Waste, Other | $7K | 11.45% | 91.55% | $756 |
ImportsExports
Imports
$58KYoY · Pro
Exports
$0YoY · 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.
Imports · July 2026
origin
India and China together supply 89% of it.
customs district
destination
entry
rate provision · imports
1.0% enters free of duty; the effective duty rate is 1.30%.