HS code · 6-digit subheading
HS Code 2842.10 – Salts of inorganic acids or peroxoacids, double or complex silicates, including aluminosilicates, whether or not chemically defined, excluding azides
HS code 2842.10 is the 6-digit subheading for salts of inorganic acids or peroxoacids, double or complex silicates, including aluminosilicates, whether or not chemically defined, excluding azides. It is used for zeolites, bentonite (processed), kaolin (calcined), montmorillonite and fuller's earth.
What HS 2842.10 covers
This broad HS code encompasses a wide array of double or complex silicates, including aluminosilicates, which are inorganic salts with diverse and significant industrial applications. These materials are extensively traded for their use as adsorbents, catalysts, fillers, and ion-exchange agents. Key industries include petrochemicals (catalysts), detergents (zeolites), construction (cements, ceramics), and water treatment. Major importers are countries with large manufacturing bases in these sectors, such as China, the United States, Germany, and Japan, where these silicates are essential for various production processes. Exporters are typically countries with abundant mineral resources or advanced chemical processing capabilities to synthesize these complex compounds. Key aspects of their trade involve specific structural properties (e.g., pore size for zeolites), purity, particle size, and compliance with environmental regulations, especially for their use in filtration and purification systems.
- Covers
- Zeolites
- Bentonite (processed)
- Kaolin (calcined)
- Montmorillonite
- Fuller's earth
- Sodium aluminosilicate
- Calcium silicate
- Magnesium silicate
- Examples
- BASF Zeolites
- Imerys Kaolin
- W. R. Grace & Co. (silica gels)
- Evonik Industries (silicates)
Codes often confused with 2842.10
Common mistake. This code is broad; confusion might arise with 2508 (Other clays) if the product is a raw clay, or with 382499 (Other chemical products and preparations) if it's a formulated mixture containing silicates. It also excludes simple silicates (e.g., sodium silicate under 2839).
Top exporters and importers of HS code 284210, 2025
In 2025, the largest exporter of HS code 284210 in UN Comtrade data was the Netherlands, with 22% 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 Netherlands $181M 22% of world exports
- 2 Germany $178M 22% of world exports
- 3 Japan $98M 12% of world exports
World total: $817M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $133M 14% of world imports
- 2 Poland $102M 11% of world imports
- 3 Germany $99M 10% of world imports
World total: $971M 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 2842.10 2
Brazil splits HS 2842.10 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 2842.10.10 Zeolite ion exchangers for water treatmentZeólitas do tipo utilizado como trocadores de íons para o tratamento de águas
- 2842.10.90 Other double or complex silicatesOutros
All Brazil NCM codes in heading 28.42 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2842.10
What is HS code 284210?
HS code 284210 is a 6-digit subheading in the Harmonized System that covers: Salts of inorganic acids or peroxoacids, double or complex silicates, including aluminosilicates, whether or not chemically defined, excluding azides. This broad HS code encompasses a wide array of double or complex silicates, including aluminosilicates, which are inorganic salts with diverse and significant industrial applications. These materials are extensively traded for their use as adsorbents, catalysts, fillers, and ion-exchange agents. Key industries include petrochemicals (catalysts), detergents (zeolites), construction (cements, ceramics), and water treatment. Major importers are countries with large manufacturing bases in these sectors, such as China, the United States, Germany, and Japan, where these silicates are essential for various production processes. Exporters are typically countries with abundant mineral resources or advanced chemical processing capabilities to synthesize these complex compounds. Key aspects of their trade involve specific structural properties (e.g., pore size for zeolites), purity, particle size, and compliance with environmental regulations, especially for their use in filtration and purification systems.
What products fall under HS code 284210?
Zeolites, Bentonite (processed), Kaolin (calcined), Montmorillonite, Fuller's earth, Sodium aluminosilicate, Calcium silicate, Magnesium silicate
What are common misclassifications for HS code 284210?
This code is broad; confusion might arise with 2508 (Other clays) if the product is a raw clay, or with 382499 (Other chemical products and preparations) if it's a formulated mixture containing silicates. It also excludes simple silicates (e.g., sodium silicate under 2839).
Which countries are the top exporters of goods under HS code 284210?
In 2025, the top exporters of HS code 284210 in UN Comtrade data were the Netherlands ($181M, 22% of world exports), Germany ($178M) and Japan ($98M). World exports came to about $817M, 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 284210?
In 2025, the top importers of HS code 284210 in UN Comtrade data were the United States ($133M, 14% of world imports), Poland ($102M) and Germany ($99M). World imports came to about $971M, 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 284210 structured?
HS code 284210 is a 6-digit subheading under the Harmonized System. The first 2 digits (28) identify the chapter, digits 3-4 (42) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 284210?
Brazil splits HS code 284210 into 2 NCM codes: 2842.10.10 (Zeolite ion exchangers for water treatment), 2842.10.90 (Other double or complex silicates). The first 6 digits of each match the HS code.