Harmonized System
U.S. exports of copper sulfate (HS 283325) totaled $12.4M in July 2026.
Importers of Copper Sulfate paid $24K in duties in July 2026 — an effective duty rate of 1.6% on $1.5M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataCopper sulfate (cupric sulfate) is a versatile inorganic salt traded under a single 10-digit line, 2833250000, and is subject to Section 301 tariff exposure when sourced from certain origins. Mexico leads US imports, followed by Taiwan and Chile, reflecting both proximity and the role of copper-mining economies in downstream chemical production. End-use demand spans agriculture (fungicide and algaecide formulations), electroplating baths, and water treatment, making purity grade and crystal size commercially significant classification factors.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
109 shipments/mo
Imports from certain origins may be subject to Section 301 tariffs. Importers should verify the current applicability of any trade-remedy orders against the country of origin before entry, as coverage and rates can change.
All copper sulfate—regardless of purity grade, crystal size, or intended use (agricultural, electroplating, or industrial)—falls under the single tariff line 2833250000. However, purity documentation may be required by end-use regulators such as EPA for pesticide-grade material.
HSChapter 28
Subheading 2 of 10 in heading 2833
Subheading 283325 · $9.8M of $36.2M
Supplier Network
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2833250000 | Copper Sulfate | $9.8M | 0.25% | 15.42% | $24K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2833250000 | Copper Sulfate | $12.4M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$9.8MYoY · Pro
Exports
$12.4MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Taiwan and Korea, South together take 64% of it.
customs district
origin
entry
rate provision · imports
84.6% enters free of duty; the effective duty rate is 0.25%.