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HSChapter 28
U.S. imports of sulfuric acid & oleum (HS 280700) totaled $34.2M in April 2026, traded with 20 countries.
Importers of Sulfuric Acid & Oleum paid $713K in duties in April 2026 — an effective duty rate of 5.7% on $12.4M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataSulfuric acid — the world's most widely produced industrial chemical — and its fuming form, oleum, enter the US under a single tariff line (2807000000), reflecting their commodity status in fertilizer production, metal processing, and petroleum refining. Canada and Mexico are the dominant suppliers, a pattern driven by integrated North American industrial infrastructure and the economics of transporting a dense, corrosive bulk liquid over short distances. Importers should note that both products are regulated as hazardous materials under DOT and are subject to EPA TSCA reporting, with oleum carrying additional handling requirements due to its free sulfur trioxide content.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Both sulfuric acid and oleum (fuming sulfuric acid, which contains dissolved sulfur trioxide) are classified under the same HTS line 2807000000. For handling and transport, however, oleum is treated as a more hazardous material due to its free SO₃ content, requiring specialized tank cars or ISO containers and stricter emergency-response planning under DOT and EPA regulations.
Sulfuric acid is a high-density, corrosive bulk commodity where freight costs are a major factor in sourcing decisions. Proximity to US industrial centers — particularly copper smelters and fertilizer plants — makes Canadian and Mexican producers the most cost-competitive suppliers, and cross-border infrastructure supports efficient bulk liquid transport.
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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 |
|---|---|---|---|---|
| 2807000000 | SULFURIC ACID AND OLEUM | $34.2M | 5.74% | $713K |
SULFURIC ACID AND OLEUM
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2807000000 | SULFURIC ACID AND OLEUM | $4.1M |
SULFURIC ACID AND OLEUM
14.6K t
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 | $8.8M | $795K | -$8.0M |
| NOGALES, AZ | $4.2M | -- | -$4.2M |
| LOS ANGELES, CA | $3.6M | $62K | -$3.5M |