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SITCSection 5
U.S. imports of nitric acid & sulfonitric acids (SITC 52233) totaled $817K in April 2026, traded with 10 countries.
Importers of Nitric Acid & Sulfonitric Acids paid $60K in duties in April 2026 — an effective duty rate of 10% on $597K in dutiable value, based on actual customs collections rather than the published tariff schedule. Nitric Acid & Sulfonitric Acids imports of $817K in April 2026 ran 11% above the year-to-date monthly average of $738K.
Last updated: April 2026 dataNitric acid is a primary feedstock for nitrogen-based explosives, fertilizers (notably ammonium nitrate), and specialty chemicals, while sulfonitric acids (mixed acids of nitric and sulfuric acid) are widely used in nitration reactions in the pharmaceutical and dye industries. Because nitric acid and its mixtures are dual-use chemicals with potential explosive precursor applications, importers may face additional scrutiny under Commerce Department export-control frameworks when re-exporting, and EPA TSCA certification is required at US entry. Concentration grade — typically expressed as weak (below 70%) or concentrated/fuming — is a key specification affecting both classification and hazmat transport requirements. Proper UN hazard class documentation and DOT-compliant packaging are mandatory for all shipments.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Nitric acid is recognized internationally as a chemical weapons precursor and is listed under the Chemical Weapons Convention schedules. While import into the US is not generally prohibited, re-export may trigger Commerce Department (BIS) licensing requirements, and importers should review end-use and end-user obligations carefully.
Nitric acid below approximately 70% concentration is classified under a different UN hazard packing group than fuming or concentrated nitric acid. The concentration percentage must be accurately declared on the bill of lading and customs entry, as misclassification can result in both regulatory penalties and serious safety incidents during transport.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | -- | $810K | +$810K |
| CANADA | $220K | $554K | +$335K |
| GERMANY | $299K | $7K | -$292K |
| TAIWAN | $108K | $7K | -$101K |
| KOREA, SOUTH | $86K | $5K | -$81K |
Monthly import values over time