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HSChapter 28
U.S. imports of inorganic and organic mercury compounds, not chemically defined (nesoi) (HS 285290) totaled $21K in April 2026, traded with 1 country.
Inorganic and Organic Mercury Compounds, Not Chemically Defined (NESOI) imports of $21K in April 2026 ran 179% above the year-to-date monthly average of $7K.
Last updated: April 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.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $21K | $58K | +$37K |
| PHILIPPINES | -- | $15K | +$15K |
| PERU | -- | $7K | +$7K |
| NEW ZEALAND | -- | -- | -- |
| UNITED KINGDOM | -- | -- | -- |
Monthly import values over time
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Get discovered by U.S. importers searching for HS 285290 — Inorganic and Organic Mercury Compounds, Not Chemically Defined (NESOI). Be the first supplier listed.
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % |
|---|---|---|---|
| 2852909000 | INORGANIC/ORGANO-MERCURY COMPOUNDS, NESOI | $21K | -- |
INORGANIC/ORGANO-MERCURY COMPOUNDS, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2852900000 | INORGANIC/ORGANIC COMPDS MERCURY, NESOI | $80K |
INORGANIC/ORGANIC COMPDS MERCURY, NESOI
29.0K kg
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ANHYDROUS AMMONIA
HS 281410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
SILICON, UNDER 99.99% (BY WEIGHT) SILICON
HS 280469
PHOSPHORIC ACID AND POLYPHOSPHORIC ACIDS
HS 280920
| State | Imports | Exports | Balance |
|---|---|---|---|
| North Carolina | $21K | -- | -$21K |
| Michigan | -- | $20K | +$20K |
| Georgia | -- | $15K | +$15K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| ALEXANDRIA BAY, NY | $21K | $15K | -$6K |
| PORT HURON, MI | -- | $28K | +$28K |
| HOUSTON, TX | -- | $15K | +$15K |