U.S. imports of Synthetic Staple Fibers of Aramids, Not Carded or Combed (HS 550311) totaled $6.4M in August 2026, imported from 12 countries.
Importers of Synthetic Staple Fibers of Aramids, Not Carded or Combed paid $581K in duties in August 2026, an average duty rate of 9.59% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Synthetic Staple Fibers of Aramids, Not Carded or Combed imports of $6.4M in August 2026 ran 34% above the year-to-date monthly average of $4.7M.
Last updated: August 2026 dataAramid staple fibers in their raw, unprocessed form — not yet carded, combed, or otherwise prepared for spinning — serve as a critical input for friction materials, gaskets, reinforced composites, and protective apparel. Classified under 5503110000, US imports are sourced primarily from Spain, France, and the Netherlands, reflecting the concentration of para- and meta-aramid staple production among a small number of European chemical companies. The narrow supplier base and specialized production technology make supply-chain continuity a key procurement risk for industrial buyers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
41 import shipments a month
HTS heading 5503 covers staple fibers that have not been carded, combed, or otherwise processed for spinning. Once aramid staple fiber undergoes carding or combing, it moves to heading 5506, which covers processed staple fibers ready for spinning. Importers should confirm the processing state of the fiber at the time of importation to ensure the correct heading is declared.
Certain high-performance aramid fibers may be subject to export controls in the country of origin due to their use in ballistic and aerospace applications. While US import classification under HTS 5503110000 does not itself trigger an import license requirement, buyers in defense or aerospace supply chains should verify whether the exporting country's controls require an export license and whether end-use certificates are needed.
Subheading 3 of 6 in heading 5503
Subheading 550311 · $6.4M of $54.5M
ImportsExports
Imports
$6.4MYoY · free account
Exports
$3.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $57.4M of Synthetic Staple Fibers of Aramids, Not Carded or Combed and exported $36.6M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Spain and France together supply 46% of it.
customs district
destination
entry
rate provision · imports
0.3% enters free of duty; duty collected equals 9.59% of imports for consumption.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 5503110000 | Syn Stp Fib of Aramids, Nt Cd, or Procd for Spinng | $6.1M | 9.59% | 99.08% | $581K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5503110000 | Syn Stp Fib of Aramids, Nt Cd, or Procd for Spinng | $3.3M |
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.
Trade Directory
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