Loading...
SITCSection 5
U.S. imports of sulfates (nes) & alums (SITC 52349) totaled $32.9M in April 2026, traded with 33 countries.
Importers of Sulfates (NES) & Alums paid $833K in duties in April 2026 — an effective duty rate of 6.0% on $14.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataAluminum sulfate (alum) is the commercially dominant product in this residual group, widely used as a coagulant in municipal drinking-water and wastewater treatment and as a sizing agent in papermaking. Ferrous and ferric sulfates serve as coagulants and soil amendments, while copper sulfate is used in agriculture as a fungicide and in electroplating. The "NES" scope means this heading captures a broad range of metal sulfates not assigned to more specific headings, so precise chemical identification — including the metal cation and hydration state — is essential for correct classification. Alum used in water treatment is subject to NSF/ANSI 60 certification requirements when sold for potable-water applications in the United States.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
NSF/ANSI Standard 60 certifies that chemicals used in drinking-water treatment do not introduce contaminants above health-based levels. Municipal water utilities in the US typically require NSF/ANSI 60-certified aluminum sulfate for coagulation applications. Importers supplying the water-treatment market should confirm that their product carries current NSF certification and that the certificate covers the specific grade and concentration being imported.
Because this heading is a residual catch-all, CBP may scrutinize whether a particular sulfate belongs here or under a more specific provision. Commercial invoices should state the full chemical name, CAS number, metal cation, hydration state (anhydrous vs. hydrated), and purity grade. A binding ruling request can provide certainty for high-volume or recurring shipments of less common sulfate compounds.
Supplier Network
Get discovered by U.S. importers searching for HS 52349 — Sulfates (NES) & Alums. Be the first supplier listed.
Monthly import values over time