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HSChapter 28
U.S. imports of copper sulfate (HS 283325) totaled $11.6M in April 2026, traded with 16 countries.
Importers of Copper Sulfate paid $59K in duties in April 2026 — an effective duty rate of 2.1% on $2.8M in dutiable value, based on actual customs collections rather than the published tariff schedule. Copper Sulfate imports of $11.6M in April 2026 ran 23% above the year-to-date monthly average of $9.4M.
Last updated: April 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.
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.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $6.4M | -- | -$6.4M |
| TAIWAN | $1.9M | $3.2M | +$1.3M |
| KOREA, SOUTH | -- | $2.8M | +$2.8M |
| CANADA | $309K | $2.0M | +$1.7M |
| CHILE | $1.5M | -- | -$1.5M |
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 |
|---|---|---|---|---|
| 2833250000 | COPPER SULFATE | $11.6M | 2.09% | $59K |
COPPER SULFATE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2833250000 | COPPER SULFATE | $10.8M |
COPPER SULFATE
1.4M ckg
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 |
|---|---|---|---|
| Washington | $1.3M | $8.6M | +$7.3M |
| Texas | $5.7M | $170K | -$5.5M |
| New Jersey | $1.3M | $1.8M | +$413K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $6.4M | -- | -$6.4M |
| TACOMA, WA | $373K | $4.7M | +$4.3M |
| SEATTLE-TACOMA INTERNATIONAL AIRPORT, WA | -- | $2.1M | +$2.1M |