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HSChapter 29
U.S. imports of cyclic hydrocarbons, not elsewhere specified or included (HS 290290) totaled $5.5M in April 2026, traded with 17 countries.
Importers of Cyclic Hydrocarbons, Not Elsewhere Specified or Included paid $624K in duties in April 2026 — an effective duty rate of 12% on $5.4M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataA structurally diverse residual category, this heading captures cyclic hydrocarbons that do not fall under more specific benzene, toluene, xylene, styrene, or naphthalene headings — including pseudocumene (2902901000), polycyclic aromatics such as acenaphthene, chrysene, and pyrene (2902902000), dodecylbenzene (2902903010), other alkyl and polyalkylbenzenes (2902903050), anthracene (2902904000), and a broad catch-all for remaining cyclic hydrocarbons (2902909000 and 2902909500). India leads US imports under this heading, followed by Spain and Taiwan, reflecting the geographic spread of specialty chemical production. The breadth of compounds covered means classification disputes are common, and the correct 10-digit line depends on the specific compound's chemical identity.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The US schedule under 290290 is organized by named compound: pseudocumene has its own line (2902901000), polycyclics like acenaphthene and pyrene fall under 2902902000, dodecylbenzene under 2902903010, other alkyl/polyalkylbenzenes under 2902903050, anthracene under 2902904000, and remaining compounds under 2902909000 or 2902909500. Classification requires a precise chemical identity — typically confirmed by a Certificate of Analysis — and a licensed customs broker or chemist familiar with CBP classification rulings should be consulted for novel or multi-component products.
Yes. Many cyclic hydrocarbons in this heading are listed on the EPA TSCA Chemical Substance Inventory, requiring TSCA certification at entry. Certain polycyclic aromatic hydrocarbons (PAHs) may also be subject to EPA reporting or import restrictions depending on their specific identity and intended use. Importers should verify TSCA status and any applicable EPA import requirements for each specific compound before shipment.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2902909000 | OTHER CYCLIC HYDROCARBONS | $4.3M | 11.35% | $488K |
| 2902903050 | OTHER ALKYL AND POLYALKYL BENZENES | $1.0M | 11.97% | $121K |
| 2902902000 | ACENAPHTHENE, CHRYSENE, CYMENE, INDENE, PYRENE ETC | $73K | 15.87% | $10K |
| 2902901000 | PSEUDOCUMENE | $46K | 10.00% | $5K |
| 2902903010 | DODECYLBENZENE | $0 | -- | -- |
| 2902904000 | ANTHRACENE; AND 1,4-DI-(2-METHYLSTYRYL) BENZENE | $0 | -- | -- |
OTHER CYCLIC HYDROCARBONS
OTHER ALKYL AND POLYALKYL BENZENES
ACENAPHTHENE, CHRYSENE, CYMENE, INDENE, PYRENE ETC
PSEUDOCUMENE
DODECYLBENZENE
ANTHRACENE; AND 1,4-DI-(2-METHYLSTYRYL) BENZENE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2902909500 | CYCLIC HYDROCARBONS, NESOI | $4.2M |
| 2902903050 | OTHER ALKYL AND POLYALKYL BENZENES | $630K |
| 2902903010 | DODECYLBENZENE | $0 |
CYCLIC HYDROCARBONS, NESOI
961.0K kg
OTHER ALKYL AND POLYALKYL BENZENES
203.5K kg
DODECYLBENZENE
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 | $1.6M | $1.2M | -$380K |
| NEW ORLEANS, LA | $1.6M | $512K | -$1.0M |
| PORT HURON, MI | $22K | $1.0M | +$989K |