U.S. exports of Epsilon-Caprolactam (6-Hexanelactam) (HS 293371) totaled $5.5M in August 2026.
Importers of Epsilon-Caprolactam (6-Hexanelactam) paid $57K in duties in August 2026, an average duty rate of 10.72% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Epsilon-Caprolactam (6-Hexanelactam) imports of $535K in August 2026 ran 198% above the year-to-date monthly average of $180K.
Last updated: August 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.
7 import shipments a month
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.
Subheading 6 of 27 in heading 2933
Subheading 293371 · $5.5M of $143.6M
Trade Directory
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ImportsExports
Imports
$535KYoY · free account
Exports
$5.5MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $2.1M of Epsilon-Caprolactam (6-Hexanelactam) and exported $76.3M.
Through August 2026. Source: U.S. Census Bureau.
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 |
|---|---|---|---|---|---|
| 2933710000 | 6-Hexanelactam (Epsilon-Caprolactam) | $535K | 10.72% | 100.00% | $57K |
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) | $5.5M |
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.
Exports · August 2026
destination
Slovenia and Canada together take 73% of it.
customs district
origin
entry
rate provision · imports
duty collected equals 10.72% of imports for consumption.