HS code · 6-digit subheading
HS Code 2846.10 – Cerium compounds
HS code 2846.10 is the 6-digit subheading for cerium compounds. It is used for cerium oxide, cerium carbonate, cerium nitrate, cerium chloride and cerium sulfate.
What HS 2846.10 covers
This HS code covers various chemical compounds of cerium, a prominent rare earth element. Cerium compounds are widely utilized across numerous industries due to their unique catalytic, abrasive, and optical properties. Key applications include their use as catalysts in automotive catalytic converters to reduce emissions, as highly effective polishing agents for precision glass and electronics (e.g., cerium oxide), as UV absorbers in glass and ceramics, and as components in phosphors for displays and lighting. International trade involves rare earth mining and processing companies, specialized chemical manufacturers, and end-users in the automotive, electronics, and glass industries. Key considerations include the stability of the rare earth supply chain, environmental concerns related to mining and processing, and the fluctuating market prices driven by global industrial demand.
- Covers
- Cerium oxide
- Cerium carbonate
- Cerium nitrate
- Cerium chloride
- Cerium sulfate
- Cerium fluoride
- Cerium acetate.
- Examples
- Solvay (Rhône-Poulenc)
- Lynas Rare Earths
- Neo Performance Materials.
Codes often confused with 2846.10
Common mistake. This is specific to cerium compounds. It could be confused with other rare earth metal compounds (2846.90) if the specific element isn't cerium, or with cerium metal itself (2805.30).
Top exporters and importers of HS code 284610, 2025
In 2025, the largest exporter of HS code 284610 in UN Comtrade data was Japan, with 46% of world exports; the largest importer in UN Comtrade data was Japan, with 23% 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 Japan $100M 46% of world exports
- 2 France $50M 23% of world exports
- 3 China $23M 11% of world exports
World total: $219M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Japan $53M 23% of world imports
- 2 Taiwan* ~$37M 16% of world imports · partner records ↗
- 3 South Korea $32M 14% of world imports
World total: $232M 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 2846.10 2
Brazil splits HS 2846.10 into 2 NCM codes, Mercosur's 8-digit tariff lines.
All Brazil NCM codes in heading 28.46 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2846.10
What is HS code 284610?
HS code 284610 is a 6-digit subheading in the Harmonized System that covers: Cerium compounds. This HS code covers various chemical compounds of cerium, a prominent rare earth element. Cerium compounds are widely utilized across numerous industries due to their unique catalytic, abrasive, and optical properties. Key applications include their use as catalysts in automotive catalytic converters to reduce emissions, as highly effective polishing agents for precision glass and electronics (e.g., cerium oxide), as UV absorbers in glass and ceramics, and as components in phosphors for displays and lighting. International trade involves rare earth mining and processing companies, specialized chemical manufacturers, and end-users in the automotive, electronics, and glass industries. Key considerations include the stability of the rare earth supply chain, environmental concerns related to mining and processing, and the fluctuating market prices driven by global industrial demand.
What products fall under HS code 284610?
Cerium oxide, Cerium carbonate, Cerium nitrate, Cerium chloride, Cerium sulfate, Cerium fluoride, Cerium acetate.
What are common misclassifications for HS code 284610?
This is specific to cerium compounds. It could be confused with other rare earth metal compounds (2846.90) if the specific element isn't cerium, or with cerium metal itself (2805.30).
Which countries are the top exporters of goods under HS code 284610?
In 2025, the top exporters of HS code 284610 in UN Comtrade data were Japan ($100M, 46% of world exports), France ($50M) and China ($23M). World exports came to about $219M, 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 284610?
In 2025, the top importers of HS code 284610 in UN Comtrade data were Japan ($53M, 23% of world imports), Taiwan (about $37M) and South Korea ($32M). World imports came to about $232M, 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 284610 structured?
HS code 284610 is a 6-digit subheading under the Harmonized System. The first 2 digits (28) identify the chapter, digits 3-4 (46) 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 284610?
Brazil splits HS code 284610 into 2 NCM codes: 2846.10.10 (Ceric oxide), 2846.10.90 (Other cerium compounds). The first 6 digits of each match the HS code.