Loading...
HSChapter 29
U.S. imports of heterocyclic compounds with oxygen heteroatom(s) only (nesoi) (HS 293299) totaled $56.1M in April 2026, traded with 35 countries.
Last updated: April 2026 dataOxygen-only heterocyclic compounds not elsewhere specified under Chapter 29 form a broad and commercially significant catch-all heading, encompassing agrochemical actives, pharmaceutical intermediates, and nutraceutical ingredients such as glucosamine and its salts and esters (2932999010). The US schedule is unusually granular, with separate lines for specific benzodioxole-based pesticides, benzofuran and dibenzofuran, photographic chemicals, and multiple aromatic/non-aromatic NESOI tiers. Netherlands and Ireland lead US import supply under this heading — a pattern consistent with the European pharmaceutical and specialty-chemical manufacturing base — with China, Switzerland, and India also significant. Correct classification requires careful structural analysis, as the aromatic/non-aromatic distinction and the US Note 3 Section VI list both affect applicable duty rates.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
US Note 3 to Section VI of the HTS identifies specific chemical compounds that are subject to particular duty treatment — typically a reduced rate — when they appear on that enumerated list. Compounds on the list are classified into dedicated 'Note 3' lines (e.g., 2932996100), while structurally similar compounds not on the list fall into separate 'excluding Note 3' lines. Importers should cross-reference the current Note 3 list to determine which line applies to their specific compound.
Tariff line 2932999010 explicitly covers glucosamine and its salts and esters as a group, so common commercial forms such as glucosamine sulfate and glucosamine hydrochloride should be classified there rather than in the broader NESOI line 2932999090. Importers should confirm the chemical form on the commercial invoice matches the declared tariff line to avoid classification disputes.
Supplier Network
Get discovered by U.S. importers searching for HS 293299 — Heterocyclic Compounds with Oxygen Heteroatom(s) Only (NESOI). Be the first supplier listed.
Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| IRELAND | $19.2M | $2.4M | -$16.8M |
| CHINA | $11.1M | $3.2M | -$7.9M |
| SWITZERLAND | $7.6M | $1.5M | -$6.1M |
| INDIA | $5.2M | $2.6M | -$2.6M |
| GERMANY | $871K | $4.5M | +$3.6M |