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U.S. imports of acyclic polyamines, derivatives, and salts (nesoi) (HS 292129) totaled $12.5M in July 2026, traded with 22 countries.
Importers of Acyclic Polyamines, Derivatives, and Salts (NESOI) paid $813K in duties in July 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 $12.5M in July 2026 ran 18% above the year-to-date monthly average of $10.6M.
Last updated: July 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.
176 shipments/mo
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.
HSChapter 29
Subheading 2 of 18 in heading 2921
Subheading 292129 · $12.5M of $80.2M
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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 |
|---|---|---|---|---|---|
| 2921290055 | Other Acyclic Polyamines and Deriv; Salts Thereof | $8.8M | 6.43% | 74.12% | $564K |
| 2921290030 | Diethylenetriamine | $1.8M | 6.63% | 100.00% | $120K |
| 2921290020 | Triethylenetetramine | $1.4M | 7.00% | 100.00% | $96K |
| 2921290010 | Tetraethylene Pentamine | $512K | 6.50% | 100.00% | $33K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2921290055 | Other Acyclic Polyamines and Deriv; Salts Thereof | $4.6M |
| 2921290030 | Diethylenetriamine | $2.5M |
| 2921290020 | Triethylenetetramine | $1.8M |
| 2921290010 | Tetraethylenepentamine | $1.3M |
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.
ImportsExports
Imports
$12.5MYoY · Pro
Exports
$10.3MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Japan and Canada together supply 41% of it.
customs district
destination
entry
rate provision · imports
18.2% enters free of duty; the effective duty rate is 6.53%.