U.S. imports of Phenylenediamines, Diaminotoluenes, and Related Aromatic Polyamines (HS 292151) totaled $10.9M in August 2026, imported from 11 countries.
Importers of Phenylenediamines, Diaminotoluenes, and Related Aromatic Polyamines paid $1.4M in duties in August 2026, an average duty rate of 13.49% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataPhenylenediamines and diaminotoluenes are foundational intermediates in the production of dyes, rubber antioxidants, epoxy curing agents, and polyurethane isocyanates, making this heading commercially significant across the chemicals, automotive, and textile sectors. A dedicated line (2921512000) covers aromatic polyamines used as photographic chemicals, reflecting the heading's breadth across end-use industries. India and Belgium are the top US suppliers, with South Korea and Germany also prominent sources. Compounds originating from China may be subject to Section 301 tariffs, and classification between the photographic-chemical line and the general industrial lines requires careful review of end-use documentation.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
169 import shipments a month
Line 2921512000 is reserved for aromatic polyamines and their derivatives specifically used as photographic chemicals. If the compound serves a dual-use role — for example, as both a photographic developer and a dye intermediate — the principal use at the time of importation typically governs classification, and supporting documentation such as a technical data sheet or end-use certificate may be required.
Lines designated as 'products of US Note 3, Section VI' (2921513000) apply to certain chemicals that are produced in the United States and re-imported, potentially qualifying for a reduced or duty-free rate on the US-origin value. Importers must substantiate the US-origin content with appropriate documentation to claim this treatment.
ImportsExports
Imports
$10.9MYoY · free account
Exports
$3.5MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $108.4M of Phenylenediamines, Diaminotoluenes, and Related Aromatic Polyamines and exported $31.9M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 292151 — Phenylenediamines, Diaminotoluenes, and Related Aromatic Polyamines, so the companies trading it can find you. Be the first supplier listed.
Subheading 5 of 18 in heading 2921
Subheading 292151 · $10.9M of $109.9M
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 |
|---|---|---|---|---|---|
| 2921515000 | Other Arom Polyamines Etc, of Prod in US Nt3 Sec6 | $8.3M | 10.80% | 99.01% | $896K |
| 2921511000 | M-Phenylenediamine; 0-Phenylenediamine, Etc | $2.1M | 23.83% | 100.00% | $504K |
| 2921512000 | Aromat Polyamines Etc Used As Photographic Chem | $105K | 16.72% | 88.02% | $18K |
| 2921513000 | Aromat Polyamines, Etc, of Prod in US Note 3 Sec 6 | $7K | 43.99% | 100.00% | $3K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2921510000 | O-, M-, P-Phenylenediamine, Diaminotoluenes Etc | $3.5M |
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.
Imports · August 2026
origin
Belgium and India together supply 64% of it. China pays 43.9% duty; Belgium 9.7%.
customs district
destination
entry
rate provision · imports
0.9% enters free of duty; duty collected equals 13.49% of imports for consumption.