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HSChapter 29
U.S. imports of acyclic polyamines, derivatives, and salts (nesoi) (HS 292129) totaled $11.5M in April 2026, traded with 20 countries.
Importers of Acyclic Polyamines, Derivatives, and Salts (NESOI) paid $815K in duties in April 2026 — an effective duty rate of 8.0% on $10.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Acyclic Polyamines, Derivatives, and Salts (NESOI) imports of $11.5M in April 2026 ran 14% above the year-to-date monthly average of $10.0M.
Last updated: April 2026 dataEthyleneamine oligomers — diethylenetriamine (DETA, 2921290030), triethylenetetramine (TETA, 2921290020), and tetraethylenepentamine (TEPA, 2921290010) — are the commercially significant members of this residual acyclic polyamine heading, each serving distinct roles as epoxy curing agents, fuel additives, and chelant precursors. Japan and Germany are the leading sources of US imports under this heading, reflecting the concentration of specialty chemical manufacturing in those countries. The catch-all line 2921290055 captures higher ethyleneamines and other acyclic polyamine derivatives not enumerated elsewhere, requiring careful classification review when importing novel or blended amine products.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Classification follows the GRI rules: if the product is a pure or commercially defined single compound matching DETA, TETA, or TEPA, it should be classified under the corresponding specific line. Blends or higher oligomers not individually enumerated fall to 2921290055. A binding ruling from CBP is advisable for novel or proprietary amine mixtures.
TETA is primarily consumed as an epoxy resin curing agent in coatings, adhesives, and composites. DETA serves as a chelant intermediate (for DTPA synthesis) and a textile softener precursor. Demand in both cases tracks construction activity and specialty coatings production cycles.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | $801K | $2.0M | +$1.2M |
| GERMANY | $2.2M | $192K | -$2.0M |
| NETHERLANDS | $1.2M | $1.1M | -$142K |
| SWITZERLAND | $2.0M | -- | -$2.0M |
| JAPAN | $1.8M | $83K | -$1.7M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2921290055 | OTHER ACYCLIC POLYAMINES AND DERIV; SALTS THEREOF | $9.3M | 8.39% | $674K |
| 2921290020 | TRIETHYLENETETRAMINE | $1.1M | 6.50% | $69K |
| 2921290030 | DIETHYLENETRIAMINE | $812K | 6.50% | $53K |
| 2921290010 | TETRAETHYLENE PENTAMINE | $279K | 6.50% | $18K |
OTHER ACYCLIC POLYAMINES AND DERIV; SALTS THEREOF
TRIETHYLENETETRAMINE
DIETHYLENETRIAMINE
TETRAETHYLENE PENTAMINE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2921290055 | OTHER ACYCLIC POLYAMINES AND DERIV; SALTS THEREOF | $4.0M |
| 2921290020 | TRIETHYLENETETRAMINE | $3.7M |
| 2921290030 | DIETHYLENETRIAMINE | $2.5M |
| 2921290010 | TETRAETHYLENEPENTAMINE | $1.7M |
OTHER ACYCLIC POLYAMINES AND DERIV; SALTS THEREOF
1.2M kg
TRIETHYLENETETRAMINE
703.0K kg
DIETHYLENETRIAMINE
1.9M kg
TETRAETHYLENEPENTAMINE
379.4K 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
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $1.3M | $4.8M | +$3.5M |
| NEW ORLEANS, LA | $2.7M | $2.1M | -$622K |
| SAVANNAH, GA | $865K | $717K | -$148K |