HS code · 6-digit subheading
HS Code 2833.25 – Sulphates; of copper
HS code 2833.25 is the 6-digit subheading for sulphates, of copper. It is used for copper(II) sulfate pentahydrate, anhydrous copper sulfate, basic copper sulfate, copper sulfate crystals and copper sulfate powder.
What HS 2833.25 covers
Copper sulphate is a versatile inorganic compound crucial in various industries. In international trade, it's primarily exchanged as a raw material for agriculture (fungicides, algaecides), water treatment, and electroplating. Major importers include agricultural nations and countries with significant mining or manufacturing sectors, while exporters are often countries with abundant copper resources or chemical production capabilities. Key things to know include its different grades (pentahydrate, anhydrous), purity levels, and packaging, which can significantly impact its trade value and application. Environmental regulations regarding its use, especially in aquaculture and agriculture, also play a vital role in its global movement. Its blue crystalline form is easily recognizable, and its demand is often linked to global agricultural cycles and industrial output.
- Covers
- Copper(II) sulfate pentahydrate
- Anhydrous copper sulfate
- Basic copper sulfate
- Copper sulfate crystals
- Copper sulfate powder
- Copper sulfate solution
- Examples
- Blue Vitriol
- Cupric Sulfate
- Kocide 3000 (fungicide)
- Phyton-27 (bactericide/fungicide)
Codes often confused with 2833.25
Common mistake. This code might be confused with other metal sulphates like 2833.22 (of aluminium) or 2833.29 (other sulphates), but copper's specific applications distinguish it. It's also distinct from copper oxides (2825.50) or other copper compounds.
Top exporters and importers of HS code 283325, 2025
In 2025, the largest exporter of HS code 283325 in UN Comtrade data was South Africa, with 29% of world exports; the largest importer in UN Comtrade data was the United States, with 14% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 South Africa $298M 29% of world exports
- 2 United States $110M 11% of world exports
- 3 Taiwan* ~$98M 9.4% of world exports · partner records ↗
World total: $1.0B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $115M 14% of world imports
- 2 Australia $64M 7.9% of world imports
- 3 Canada $51M 6.3% of world imports
World total: $802M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for 2833.25 2
Brazil splits HS 2833.25 into 2 NCM codes, Mercosur's 8-digit tariff lines.
All Brazil NCM codes in heading 28.33 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2833.25
What is HS code 283325?
HS code 283325 is a 6-digit subheading in the Harmonized System that covers: Sulphates; of copper. Copper sulphate is a versatile inorganic compound crucial in various industries. In international trade, it's primarily exchanged as a raw material for agriculture (fungicides, algaecides), water treatment, and electroplating. Major importers include agricultural nations and countries with significant mining or manufacturing sectors, while exporters are often countries with abundant copper resources or chemical production capabilities. Key things to know include its different grades (pentahydrate, anhydrous), purity levels, and packaging, which can significantly impact its trade value and application. Environmental regulations regarding its use, especially in aquaculture and agriculture, also play a vital role in its global movement. Its blue crystalline form is easily recognizable, and its demand is often linked to global agricultural cycles and industrial output.
What products fall under HS code 283325?
Copper(II) sulfate pentahydrate, Anhydrous copper sulfate, Basic copper sulfate, Copper sulfate crystals, Copper sulfate powder, Copper sulfate solution
What are common misclassifications for HS code 283325?
This code might be confused with other metal sulphates like 2833.22 (of aluminium) or 2833.29 (other sulphates), but copper's specific applications distinguish it. It's also distinct from copper oxides (2825.50) or other copper compounds.
Which countries are the top exporters of goods under HS code 283325?
In 2025, the top exporters of HS code 283325 in UN Comtrade data were South Africa ($298M, 29% of world exports), the United States ($110M) and Taiwan (about $98M). World exports came to about $1.0B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 283325?
In 2025, the top importers of HS code 283325 in UN Comtrade data were the United States ($115M, 14% of world imports), Australia ($64M) and Canada ($51M). World imports came to about $802M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 283325 structured?
HS code 283325 is a 6-digit subheading under the Harmonized System. The first 2 digits (28) identify the chapter, digits 3-4 (33) identify the heading, and digits 5-6 (25) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 283325?
Brazil splits HS code 283325 into 2 NCM codes: 2833.25.10 (Cuprous sulphate), 2833.25.20 (Cupric sulphate). The first 6 digits of each match the HS code.