HS code · 6-digit subheading
HS Code 2833.29 – Sulphates; n.e.c. in item no. 2833.2
HS code 2833.29 is the 6-digit subheading for sulphates, n.e.c. in item no. 2833.2. It is used for magnesium sulphate (Epsom salt), sodium sulphate anhydrous, ammonium sulphate, zinc sulphate and copper sulphate pentahydrate.
What HS 2833.29 covers
This HS code encompasses a diverse range of sulphates not specifically classified elsewhere under 2833.2. These inorganic chemical compounds are fundamental to numerous industrial processes globally. Key applications span agriculture, where they are used in fertilizers; water treatment, acting as coagulants; the textile industry, for dyeing and finishing; and in the production of pigments and pharmaceuticals. Major chemical manufacturers and distributors are the primary players in both importing and exporting these goods. Developing nations often import these sulphates to support their burgeoning industrial sectors, while industrialized countries export specialized, high-purity variants. Critical trade considerations include the specific chemical formulation, purity levels, and adherence to regulatory standards for hazardous materials, as some sulphates can be corrosive or environmentally sensitive. The trade volume for these 'other' sulphates is substantial, reflecting their foundational role in a wide array of manufacturing and processing industries.
- Covers
- Magnesium sulphate (Epsom salt)
- Sodium sulphate anhydrous
- Ammonium sulphate
- Zinc sulphate
- Copper sulphate pentahydrate
- Ferrous sulphate
- Aluminium sulphate
- Potassium sulphate
- Examples
- Epsom Salt (various brands)
- Miraclo (fertilizer)
- Blue Vitriol (copper sulphate)
- Alum (aluminium sulphate in some contexts)
Codes often confused with 2833.29
Common mistake. This code is a residual category for sulphates not specifically listed. It can be confused with more specific sulphate codes like 2833.21 (Magnesium sulphate) or 2833.22 (Aluminium sulphate) if the product is clearly identifiable as one of those.
Top exporters and importers of HS code 283329, 2025
In 2025, the largest exporter of HS code 283329 in UN Comtrade data was China, with 32% of world exports; the largest importer in UN Comtrade data was China, with 19% 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 China $527M 32% of world exports
- 2 Chile $213M 13% of world exports
- 3 Indonesia $104M 6.3% of world exports
World total: $1.7B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $345M 19% of world imports
- 2 Japan $184M 10% of world imports
- 3 United States $183M 10.0% of world imports
World total: $1.8B 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 that did not report are estimated from what other countries recorded trading with them. 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. 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 2833.29 8
Brazil splits HS 2833.29 into 8 NCM codes, Mercosur's 8-digit tariff lines.
- 2833.29.10 Antimony sulphateDe antimônio
- 2833.29.20 Lithium sulphateDe lítio
- 2833.29.30 Strontium sulphateDe estrôncio
- 2833.29.40 Ferrous sulphateSulfato ferroso
- 2833.29.50 Neutral lead sulphateNeutro de chumbo
- 2833.29.60 Chromium sulphateDe cromo
- 2833.29.70 Zinc sulphateDe zinco
- 2833.29.90 Other sulphatesOutros
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 2833.29
What is HS code 283329?
HS code 283329 is a 6-digit subheading in the Harmonized System that covers: Sulphates; n.e.c. in item no. 2833.2. This HS code encompasses a diverse range of sulphates not specifically classified elsewhere under 2833.2. These inorganic chemical compounds are fundamental to numerous industrial processes globally. Key applications span agriculture, where they are used in fertilizers; water treatment, acting as coagulants; the textile industry, for dyeing and finishing; and in the production of pigments and pharmaceuticals. Major chemical manufacturers and distributors are the primary players in both importing and exporting these goods. Developing nations often import these sulphates to support their burgeoning industrial sectors, while industrialized countries export specialized, high-purity variants. Critical trade considerations include the specific chemical formulation, purity levels, and adherence to regulatory standards for hazardous materials, as some sulphates can be corrosive or environmentally sensitive. The trade volume for these 'other' sulphates is substantial, reflecting their foundational role in a wide array of manufacturing and processing industries.
What products fall under HS code 283329?
Magnesium sulphate (Epsom salt), Sodium sulphate anhydrous, Ammonium sulphate, Zinc sulphate, Copper sulphate pentahydrate, Ferrous sulphate, Aluminium sulphate, Potassium sulphate
What are common misclassifications for HS code 283329?
This code is a residual category for sulphates not specifically listed. It can be confused with more specific sulphate codes like 2833.21 (Magnesium sulphate) or 2833.22 (Aluminium sulphate) if the product is clearly identifiable as one of those.
Which countries are the top exporters of goods under HS code 283329?
In 2025, the top exporters of HS code 283329 in UN Comtrade data were China ($527M, 32% of world exports), Chile ($213M) and Indonesia ($104M). World exports came to about $1.7B, 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 283329?
In 2025, the top importers of HS code 283329 in UN Comtrade data were China ($345M, 19% of world imports), Japan ($184M) and the United States ($183M). World imports came to about $1.8B, 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 283329 structured?
HS code 283329 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 (29) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 283329?
Brazil splits HS code 283329 into 8 NCM codes: 2833.29.10 (Antimony sulphate), 2833.29.20 (Lithium sulphate), 2833.29.30 (Strontium sulphate), 2833.29.40 (Ferrous sulphate), 2833.29.50 (Neutral lead sulphate), 2833.29.60 (Chromium sulphate), 2833.29.70 (Zinc sulphate), 2833.29.90 (Other sulphates). The first 6 digits of each match the HS code.