Harmonized System
U.S. exports of Inorganic and Organic Mercury Compounds, Not Chemically Defined (NESOI) (HS 285290) totaled $237K in August 2026, exported to 2 countries.
Last updated: August 2026 dataMercury compound mixtures and preparations that lack a single, reproducible chemical identity — and therefore fall outside the 'chemically defined' standard — are classified under this residual heading, covering lines 2852900000 and 2852909000. These materials appear in industrial waste treatment, certain legacy formulations, and research contexts where precise molecular uniformity is not guaranteed. India is the leading US supplier under this heading, followed by Canada and China. As with all mercury-containing imports, EPA TSCA certification and compliance with Minamata Convention obligations are mandatory, and importers should confirm that the specific compound or mixture is not subject to a US import ban before shipment.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Importers must submit a TSCA import certification (either a positive certification that the goods comply with TSCA, or a negative certification that they are not subject to it), along with standard CBP entry documents. Hazardous materials shipping documentation (SDS, proper UN hazard classification) is also required, and EPA may request additional information for compounds on the TSCA Chemical Substance Inventory.
Yes. If mercury is a minor constituent and the product's essential character is determined by another component — for example, a pharmaceutical preparation or a specialty coating — it may be classified outside Chapter 28 entirely. The GRI (General Rules of Interpretation) essential-character test and any applicable chapter notes govern; a binding ruling from CBP is recommended for borderline formulations.
Subheading 1 of 2 in heading 2852
Subheading 285290 · $237K of $260K
Trade Directory
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ImportsExports
Imports
—YoY · free account
Exports
$237KYoY · free account
Low of 6 reported months · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $189K of Inorganic and Organic Mercury Compounds, Not Chemically Defined (NESOI) and exported $1.5M.
Fewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026 · imports 6 of 12 months reported. Source: U.S. Census Bureau.
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 |
|---|---|---|---|---|
| 2852909000 | Inorganic/Organo-Mercury Compounds, NESOI | — | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2852900000 | Inorganic/Organic Compds Mercury, NESOI | $237K |
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.
Exports · August 2026
destination
Spain and Canada together take 100% of it.
customs district
origin
entry
rate provision · imports
None recorded for this period.