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HSChapter 29
U.S. imports of epsilon-caprolactam (6-hexanelactam) (HS 293371) totaled $47K in April 2026, traded with 5 countries.
Epsilon-Caprolactam (6-Hexanelactam) imports of $47K in April 2026 ran 61% below the year-to-date monthly average of $120K.
Last updated: April 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.
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.
Monthly import values over time
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2933710000 | 6-HEXANELACTAM (EPSILON-CAPROLACTAM) | $47K | 24.04% | $11K |
6-HEXANELACTAM (EPSILON-CAPROLACTAM)
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2933710000 | 6-HEXANELACTAM (EPSILON-CAPROLACTAM) | $8.0M |
6-HEXANELACTAM (EPSILON-CAPROLACTAM)
4.6M kg
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
COMP WITH PYRIMIDINE OR PIPERAZINE RING, NESOI
HS 293359
ANTIBIOTICS, NESOI
HS 294190
| State | Imports | Exports | Balance |
|---|---|---|---|
| Virginia | -- | $6.4M | +$6.4M |
| New Jersey | -- | $1.4M | +$1.4M |
| Georgia | -- | $198K | +$198K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NORFOLK-NEWPORT NEWS, VA | -- | $5.9M | +$5.9M |
| TROUT RIVER, NY | -- | $950K | +$950K |
| LAREDO, TX | -- | $298K | +$298K |