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HSChapter 28
U.S. imports of aluminum sulfate (HS 283322) totaled $601K in April 2026, traded with 11 countries.
Importers of Aluminum Sulfate paid $38K in duties in April 2026 — an effective duty rate of 11% on $346K in dutiable value, based on actual customs collections rather than the published tariff schedule. Aluminum Sulfate imports of $601K in April 2026 ran 34% above the year-to-date monthly average of $449K.
Last updated: April 2026 dataAluminum sulfate is a foundational coagulant in municipal water treatment and paper sizing, classified under a single US tariff line (2833220000). Canada is the leading US supplier — a position reinforced by proximity and USMCA trade terms — with Colombia and Sweden also notable sources. The product is traded in both liquid (solution) and dry (granular or lump) forms, and the physical form can affect freight economics and handling requirements at the port of entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes — both liquid (solution) and dry (granular, lump, or powdered) aluminum sulfate are classified under 2833220000. However, the physical form affects packaging, container type, and freight classification under carrier tariffs, so importers should ensure the commercial invoice and packing list accurately describe the form to avoid discrepancies at entry.
Aluminum sulfate used as a water treatment coagulant in the US must meet NSF/ANSI Standard 60 for drinking water treatment chemicals. Importers supplying municipal customers should obtain NSF certification documentation from the manufacturer and ensure the product meets applicable purity specifications before the shipment is committed to a water utility contract.
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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 |
|---|---|---|---|---|
| 2833220000 | ALUMINUM SULFATE | $601K | 10.99% | $38K |
ALUMINUM SULFATE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2833220000 | ALUMINUM SULFATE | $275K |
ALUMINUM SULFATE
799.5K 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 |
|---|---|---|---|
| Puerto Rico | $238K | -- | -$238K |
| New York | $80K | -- | -$80K |
| Michigan | -- | $76K | +$76K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| SAN JUAN, PR | $238K | -- | -$238K |
| BUFFALO-NIAGARA FALLS, NY | $62K | $69K | +$6K |
| PORT HURON, MI | $3K | $101K | +$98K |