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U.S. exports of epsilon-caprolactam (6-hexanelactam) (HS 293371) totaled $4.4M in July 2026.
Epsilon-Caprolactam (6-Hexanelactam) imports of $46K in July 2026 ran 64% below the year-to-date monthly average of $129K.
Last updated: July 2026 dataEpsilon-caprolactam, the cyclic amide monomer for Nylon 6, is classified under a single 10-digit line (2933710000), reflecting its status as a well-defined commodity chemical. It is a primary feedstock for synthetic fiber, engineering plastics, and film production, making it a strategically important import for the US textile and automotive supply chains. Caprolactam trade has been subject to antidumping scrutiny from multiple origins, and importers should verify the current status of any applicable orders before contracting. Purity (typically 99.9% minimum) and color number are the key quality parameters that determine suitability for fiber-grade versus industrial-grade applications.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1 shipments/mo
Fiber-grade caprolactam requires very high purity (typically 99.9%+), low permanganate number, and strict color limits to ensure consistent yarn quality. Industrial-grade material used in engineering plastics or coatings may tolerate slightly broader specifications. Buyers should confirm grade requirements with their downstream processor before sourcing.
Yes, caprolactam has historically been subject to antidumping duty orders targeting specific origins. Importers should check with CBP and the International Trade Administration for the current status of any active orders, as additional duties and bonding requirements can significantly affect landed cost.
HSChapter 29
Subheading 17 of 27 in heading 2933
Subheading 293371 · $46K of $482.5M
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 |
|---|---|---|---|---|---|
| 2933710000 | 6-Hexanelactam (Epsilon-Caprolactam) | $46K | 16.50% | 100.00% | $8K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2933710000 | 6-Hexanelactam (Epsilon-Caprolactam) | $4.4M |
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.
ImportsExports
Imports
$46KYoY · Pro
Exports
$4.4MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
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Exports · July 2026
destination
Canada and Slovenia together take 52% of it.
customs district
origin
entry
rate provision · imports
the effective duty rate is 16.50%.