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HSChapter 29
U.S. imports of diazo-, azo-, or azoxy-compounds (HS 292700) totaled $2.3M in May 2026, traded with 16 countries.
Importers of Diazo-, Azo-, or Azoxy-Compounds paid $307K in duties in May 2026 — an effective duty rate of 17% on $1.8M in dutiable value, based on actual customs collections rather than the published tariff schedule. Diazo-, Azo-, or Azoxy-Compounds imports of $2.3M in May 2026 ran 17% below the year-to-date monthly average of $2.8M.
Last updated: May 2026 dataAzo and diazo compounds are foundational intermediates for dye manufacturing, photochemical systems, and blowing agents — end-uses that are directly reflected in the US schedule's dedicated lines for photochemicals (2927002500), fast-color bases (2927003000), and azo-sulfonic acid salts used in textile dyes. Indonesia leads US imports under this heading, followed by Japan and Mexico. Several aromatic azo compounds are subject to scrutiny under EPA TSCA and, in textile applications, under CPSC regulations governing azo dyes that can cleave to carcinogenic amines.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1,1-Azobisformamide, commonly known as azodicarbonamide (ADA), is used as a chemical blowing agent in plastics and rubber foaming. While not a food-contact substance in the US in the same way it is regulated in the EU, importers should verify TSCA inventory status and any applicable CPSC guidance if the material is destined for consumer-product applications.
Classification depends on the compound's primary commercial end-use as documented by the manufacturer. Photosensitive diazonium salts used in reprographic or lithographic applications go to 2927002500, while azo compounds sold as coupling components or bases for on-fiber dyeing fall under 2927003000. End-use certificates or manufacturer's declarations are typically required to support the claimed classification.
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 |
|---|---|---|---|---|
| 2927001500 | 1,1-AZOBISFORMAMIDE | $1.0M | 21.84% | $209K |
| 2927004000 | OTHER DIAZO-,AZO- ETC CMPDS OF PROD IN U.S.NT3 SC6 | $987K | 6.62% | $39K |
| 2927002500 | DIAZO-,AZO- OR AZOXY-CMPDS USED AS PHOTO CHEMICALS | $375K | 16.50% | $62K |
| 2927005000 | OTHER DIAZO-, ETC CMPDS(EXC PROD IN U.S.NT3 SC 6) | $69K | 6.50% | $2K |
| 2927003000 | DIAZO-,AZO- ETC CMPDS USED AS FAST COLOR BASES ET | $8K | 16.50% | $1K |
| 2927001800 | 1-NAPHTAHALENESULFONIC ACID, ETC. | $0 | -- | -- |
| 2927000600 | P-AMINOAZOBENENE DISULFONIC ACID; ETC. | $0 | -- | -- |
| 2927000300 | 4-AMINOAZOBENZENE DISULFONIC ACID, MONOSODIUM SALT | $0 | -- | -- |
1,1-AZOBISFORMAMIDE
OTHER DIAZO-,AZO- ETC CMPDS OF PROD IN U.S.NT3 SC6
DIAZO-,AZO- OR AZOXY-CMPDS USED AS PHOTO CHEMICALS
OTHER DIAZO-, ETC CMPDS(EXC PROD IN U.S.NT3 SC 6)
DIAZO-,AZO- ETC CMPDS USED AS FAST COLOR BASES ET
1-NAPHTAHALENESULFONIC ACID, ETC.
P-AMINOAZOBENENE DISULFONIC ACID; ETC.
4-AMINOAZOBENZENE DISULFONIC ACID, MONOSODIUM SALT
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2927000000 | DIAZO-, AZO-, OR AZOXY-COMPOUNDS | $682K |
DIAZO-, AZO-, OR AZOXY-COMPOUNDS
20.7K 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 |
|---|---|---|---|
| NORFOLK-NEWPORT NEWS, VA | $823K | -- | -$823K |
| NEWARK, NJ | $438K | $204K | -$234K |
| LAREDO, TX | $392K | $77K | -$315K |