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HSChapter 28
U.S. imports of sodium cyanides & sodium cyanide oxides (HS 283711) totaled $313K in April 2026, traded with 6 countries.
Importers of Sodium Cyanides & Sodium Cyanide Oxides paid $31K in duties in April 2026 — an effective duty rate of 10% on $313K in dutiable value, based on actual customs collections rather than the published tariff schedule. Sodium Cyanides & Sodium Cyanide Oxides imports of $313K in April 2026 ran 14% above the year-to-date monthly average of $274K.
Last updated: April 2026 dataSodium cyanide is an essential reagent in gold and silver heap-leach mining operations, and its import is tightly controlled given its acute toxicity and dual-use potential. All shipments enter under the single tariff line 2837110000, but importers must also comply with EPA Toxic Substances Control Act (TSCA) certification requirements and, in many cases, Department of Homeland Security chemical facility security regulations. Germany is the leading US supplier, with China and Japan also significant sources; origin documentation and chain-of-custody records are critical given the regulatory scrutiny applied at the port of entry.
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Importers must file an EPA TSCA certification (either a positive certification that the shipment complies with TSCA, or a negative certification that it is not subject to TSCA). Additionally, facilities that store sodium cyanide above threshold quantities may fall under DHS Chemical Facility Anti-Terrorism Standards (CFATS). Some ports also require advance notification. Consulting a licensed customs broker and legal counsel familiar with chemical import compliance is strongly recommended.
Sodium cyanide imports from China may be subject to Section 301 tariffs. Importers should verify current applicability and any product-specific exclusions with a customs broker, as the Section 301 list and exclusion orders are subject to ongoing administrative review.
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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 |
|---|---|---|---|---|
| 2837110000 | CYANIDES AND CYANIDE OXIDES OF SODIUM | $313K | 10.00% | $31K |
CYANIDES AND CYANIDE OXIDES OF SODIUM
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2837110000 | CYANIDES AND CYANIDE OXIDES OF SODIUM | $20.4M |
CYANIDES AND CYANIDE OXIDES OF SODIUM
10.8M 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
| Port | Imports | Exports | Balance |
|---|---|---|---|
| PORT HURON, MI | -- | $6.0M | +$6.0M |
| LAREDO, TX | -- | $5.6M | +$5.6M |
| HOUSTON, TX | -- | $3.6M | +$3.6M |