HS code · 6-digit subheading
HS Code 2841.90 – Salts of oxometallic or peroxometallic acids; n.e.c. in heading no. 2841
HS code 2841.90 is the 6-digit subheading for salts of oxometallic or peroxometallic acids, n.e.c. in heading no. 2841. It is used for vanadates, niobates, tantalates, rhenates and titanates (inorganic salts).
What HS 2841.90 covers
This residual HS code covers various salts of oxometallic or peroxometallic acids not specifically classified elsewhere within heading 2841. These compounds are traded for niche and specialized applications across a range of industries, including advanced materials, catalysts, and specialty chemicals. Their uses can span from components in high-performance coatings and ceramics to reagents in complex chemical syntheses. Major importers are typically countries with sophisticated research and development sectors and specialized manufacturing industries, such as Switzerland, the Netherlands, and South Korea, seeking unique chemical properties. Exporters are often specialized chemical manufacturers or research chemical suppliers globally. Key considerations in their trade include the specific chemical identity, purity, and the often small-batch nature of their production and consumption, along with strict adherence to safety and regulatory standards for novel or less common compounds.
- Covers
- Vanadates
- Niobates
- Tantalates
- Rhenates
- Titanates (inorganic salts)
- Zirconates (inorganic salts)
- Germanates
- Examples
- Sigma-Aldrich Vanadates
- Alfa Aesar Niobates
- American Elements Tantalates
- Merck Specialty Salts
Codes often confused with 2841.90
Common mistake. This "n.e.c." code is often a catch-all; misclassification might occur with more specific codes within 2841 (e.g., 284170 for molybdates) if the specific salt is known, or with 2825 (Other inorganic bases, metal oxides, hydroxides and peroxides) if the product is an oxide.
Top exporters and importers of HS code 284190, 2025
In 2025, the largest exporter of HS code 284190 in UN Comtrade data was South Korea, with 67% of world exports; the largest importer in UN Comtrade data was South Korea, with 33% of world imports. The United Kingdom reports $3.0B of its chapter 28 exports without product detail (confidential), so it may also belong among the top exporters.
Top exporters 2025 · share of world exports
- 1 South Korea $5.0B 67% of world exports
- 2 Japan $1.9B 25% of world exports
- 3 China $153M 2.0% of world exports
The United Kingdom reports $3.0B of its chapter 28 exports without product detail (confidential), so it may also belong among the top exporters.
World total: $7.5B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 South Korea $1.5B 33% of world imports
- 2 Poland $1.1B 23% of world imports
- 3 Japan $428M 9.4% of world imports
World total: $4.5B 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 2841.90 22
Brazil splits HS 2841.90 into 22 NCM codes, Mercosur's 8-digit tariff lines.
- 2841.90.1 TitanatesTitanatos Group
- 2841.90.11 Lead titanateDe chumbo
- 2841.90.12 Barium or bismuth titanateDe bário ou de bismuto
- 2841.90.13 Calcium or strontium titanateDe cálcio ou de estrôncio
- 2841.90.14 Magnesium titanateDe magnésio
- 2841.90.15 Lanthanum or neodymium titanateDe lantânio ou de neodímio
- 2841.90.19 Other titanatesOutros
- 2841.90.2 Ferrites and ferratesFerritos e ferratos Group
- 2841.90.21 Barium ferriteFerrito de bário
- 2841.90.22 Strontium ferriteFerrito de estrôncio
- 2841.90.29 Other ferrites and ferratesOutros
- 2841.90.30 VanadatesVanadatos
- 2841.90.4 StannatesEstanatos Group
- 2841.90.41 Barium stannateDe bário
- 2841.90.42 Bismuth stannateDe bismuto
- 2841.90.43 Calcium stannateDe cálcio
- 2841.90.49 Other stannatesOutros
- 2841.90.50 PlumbatesPlumbatos
- 2841.90.60 AntimonatesAntimoniatos
- 2841.90.70 ZincatesZincatos
- 2841.90.8 AluminatesAluminatos Group
- 2841.90.81 Sodium aluminateDe sódio
- 2841.90.82 Magnesium aluminateDe magnésio
- 2841.90.83 Bismuth aluminateDe bismuto
- 2841.90.89 Other aluminatesOutros
- 2841.90.90 Other salts of oxometallic or peroxometallic acidsOutros
All Brazil NCM codes in heading 28.41 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2841.90
What is HS code 284190?
HS code 284190 is a 6-digit subheading in the Harmonized System that covers: Salts of oxometallic or peroxometallic acids; n.e.c. in heading no. 2841. This residual HS code covers various salts of oxometallic or peroxometallic acids not specifically classified elsewhere within heading 2841. These compounds are traded for niche and specialized applications across a range of industries, including advanced materials, catalysts, and specialty chemicals. Their uses can span from components in high-performance coatings and ceramics to reagents in complex chemical syntheses. Major importers are typically countries with sophisticated research and development sectors and specialized manufacturing industries, such as Switzerland, the Netherlands, and South Korea, seeking unique chemical properties. Exporters are often specialized chemical manufacturers or research chemical suppliers globally. Key considerations in their trade include the specific chemical identity, purity, and the often small-batch nature of their production and consumption, along with strict adherence to safety and regulatory standards for novel or less common compounds.
What products fall under HS code 284190?
Vanadates, Niobates, Tantalates, Rhenates, Titanates (inorganic salts), Zirconates (inorganic salts), Germanates
What are common misclassifications for HS code 284190?
This "n.e.c." code is often a catch-all; misclassification might occur with more specific codes within 2841 (e.g., 284170 for molybdates) if the specific salt is known, or with 2825 (Other inorganic bases, metal oxides, hydroxides and peroxides) if the product is an oxide.
Which countries are the top exporters of goods under HS code 284190?
In 2025, the top exporters of HS code 284190 in UN Comtrade data were South Korea ($5.0B, 67% of world exports), Japan ($1.9B) and China ($153M). World exports came to about $7.5B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). The United Kingdom reports $3.0B of its chapter 28 exports without product detail (confidential), so it may also belong among the top exporters.
Which countries are the top importers of goods under HS code 284190?
In 2025, the top importers of HS code 284190 in UN Comtrade data were South Korea ($1.5B, 33% of world imports), Poland ($1.1B) and Japan ($428M). World imports came to about $4.5B, 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 284190 structured?
HS code 284190 is a 6-digit subheading under the Harmonized System. The first 2 digits (28) identify the chapter, digits 3-4 (41) identify the heading, and digits 5-6 (90) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 284190?
Brazil splits HS code 284190 into 22 NCM codes: 2841.90.11 (Lead titanate), 2841.90.12 (Barium or bismuth titanate), 2841.90.13 (Calcium or strontium titanate), 2841.90.14 (Magnesium titanate), 2841.90.15 (Lanthanum or neodymium titanate), 2841.90.19 (Other titanates), 2841.90.21 (Barium ferrite), 2841.90.22 (Strontium ferrite), and more listed on this page. The first 6 digits of each match the HS code.