Product classification
HS code for Alumina bricks: 6902.20
Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, containing by weight more than 50% of alumina (Al2o3), of silica (SiO2) or of a mixture or compound of these.
Classification of alumina bricks under HS 6902.20
Alumina bricks are classified under HS code 6902.20. This code is found in Chapter 69, which covers ceramic products, specifically sub-chapter I, which deals with goods of siliceous fossil meals or similar siliceous earths, and refractory goods. Heading 6902 applies to refractory bricks, blocks, tiles, and similar refractory ceramic constructional goods. The specific subheading 6902.20 is used for products containing, by weight, more than 50% of alumina (Al2O3), silica (SiO2), or a mixture or compound of these elements. These bricks are designed to withstand high temperatures in furnaces, kilns, and reactors. The classification is strictly based on the chemical composition of the refractory material and its ability to resist heat, distinguishing it from standard structural clay bricks used in general construction.
- Covers
- High-alumina refractory bricks
- Silica-alumina kiln furniture
- Refractory blocks for glass furnaces
- Alumina-based checker bricks for heat exchangers
- Firebricks with >50% alumina content
- Also under 6902.20
- Saint-Gobain high-alumina refractories
- HarbisonWalker International fireclay bricks
- Morgan Advanced Materials mullite products
- Shinagawa Refractories silica bricks
Codes often confused with 6902.20
Common mistake. Alumina bricks are often misclassified under 6901.00, which is for bricks made of fossil meals (like kieselguhr). They are also confused with 6902.10, which is for refractory bricks containing more than 50% magnesium, calcium, or chromium. If the alumina content is less than 50% and the brick is not primarily silica-based, it may fall under 6902.90. Finally, non-refractory ceramic bricks are classified under 6904, which does not account for high-heat resistance.
Top exporters and importers of HS 690220 (the code used for alumina bricks), 2025
In 2025, the largest exporter of HS 690220 (the code used for alumina bricks) in UN Comtrade data was China, with 35% of world exports; the largest importer in UN Comtrade data was the United States, with 7.9% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 690220, not only alumina bricks.
Top exporters 2025 · share of world exports
- 1 China $682M 35% of world exports
- 2 Germany $267M 14% of world exports
- 3 India $150M 7.6% of world exports
World total: $2.0B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $150M 7.9% of world imports
- 2 India $144M 7.6% of world imports
- 3 Germany $86M 4.5% of world imports
World total: $1.9B 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 alumina bricks
Brazil splits HS 6902.20 into 5 NCM codes. Pick the one that matches your product:
- 6902.20.10Silico-aluminous refractory bricks
- 6902.20.91Other silico-aluminous refractory goods
- 6902.20.92Siliceous, semi-siliceous or silica refractories
- 6902.20.93Sillimanite refractory goods
- 6902.20.99Other refractories over 50% alumina and/or silica
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about alumina bricks
What is the HS code for Alumina bricks?
The HS code for Alumina bricks is 690220 (Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight more than 50% of alumina (Al2o3), of silica (SiO2) or of a mixture or compound of these). The HS code for refractory alumina bricks containing more than 50% alumina or silica is 6902.20.
How do I classify Alumina bricks for customs?
Alumina bricks is classified under HS code 690220 — Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight more than 50% of alumina (Al2o3), of silica (SiO2) or of a mixture or compound of these. This is a 6-digit subheading level code.
What if the brick is used for a home fireplace?
If the brick is a refractory firebrick designed to withstand high heat, it remains under 6902 regardless of whether the application is industrial or residential.
Which countries are the top exporters of alumina bricks (HS 690220)?
In 2025, the top exporters of HS 690220 (the code used for alumina bricks) in UN Comtrade data were China ($682M, 35% of world exports), Germany ($267M) and India ($150M). World exports came to about $2.0B, 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 alumina bricks (HS 690220)?
In 2025, the top importers of HS 690220 (the code used for alumina bricks) in UN Comtrade data were the United States ($150M, 7.9% of world imports), India ($144M) and Germany ($86M). World imports came to about $1.9B, 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.
Is the HS code for Alumina bricks the same in all countries?
The base HS code 690220 for Alumina bricks is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for alumina bricks in Brazil?
Brazil splits HS 690220 into 5 NCM codes, so the right one for alumina bricks depends on the product's details: 6902.20.10 (Silico-aluminous refractory bricks), 6902.20.91 (Other silico-aluminous refractory goods), 6902.20.92 (Siliceous, semi-siliceous or silica refractories), 6902.20.93 (Sillimanite refractory goods), 6902.20.99 (Other refractories over 50% alumina and/or silica).