HS code · 6-digit subheading
HS Code 6902.10 – Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight, singly or together, more than 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2o3
HS code 6902.10 is the 6-digit subheading for refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, containing by weight, singly or together, more than 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2o3. It is used for magnesia bricks, dolomite bricks, chromite-magnesia bricks, magnesia-carbon bricks and calcium aluminate refractory bricks.
What HS 6902.10 covers
This category encompasses refractory ceramic bricks, blocks, tiles, and similar constructional goods that contain, by weight, more than 50% of magnesium (Mg), calcium (Ca), or chromium (Cr) elements, expressed as their oxides (MgO, CaO, Cr2O3). These 'basic' refractories are engineered for extreme high-temperature environments, particularly where resistance to basic slags, molten metals, and thermal shock is paramount. They are indispensable in industries such as steelmaking (e.g., electric arc furnaces, converters, ladles), cement kilns, and glass furnaces. Importers are typically heavy industrial nations with significant metallurgical or materials processing sectors. Exporters are countries with advanced refractory manufacturing capabilities and access to the necessary mineral resources. Their high performance ensures operational efficiency and longevity in demanding industrial applications.
- Covers
- Magnesia bricks
- Dolomite bricks
- Chromite-magnesia bricks
- Magnesia-carbon bricks
- Calcium aluminate refractory bricks
- Periclase bricks
- Magnesia-spinel bricks
- Examples
- RHI Magnesita magnesia bricks
- Vesuvius refractory linings
- Magnezit Group dolomite bricks
- Calderys basic refractories
Codes often confused with 6902.10
Common mistake. Can be confused with 681591 if the articles are not ceramic (i.e., not fired to form a ceramic bond), or with other refractory ceramics in 690220 if the exact chemical composition is not carefully checked.
Top exporters and importers of HS code 690210, 2025
In 2025, the largest exporter of HS code 690210 in UN Comtrade data was China, with 51% of world exports; the largest importer in UN Comtrade data was the United States, with 7.7% 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 $767M 51% of world exports
- 2 Austria $180M 12% of world exports
- 3 Germany $147M 9.8% of world exports
World total: $1.5B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $121M 7.7% of world imports
- 2 India $117M 7.5% of world imports
- 3 Indonesia $108M 6.9% of world imports
World total: $1.6B 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 6902.10 4
Brazil splits HS 6902.10 into 4 NCM codes, Mercosur's 8-digit tariff lines.
- 6902.10.1 Magnesian or based on chromium oxideMagnesianos ou à base de óxido de cromo Group
- 6902.10.11 Bricks or slabs over 90% dichromium trioxideTijolos ou placas, que contenham, em peso, mais de 90 % de trióxido de dicromo
- 6902.10.18 Other magnesian or chrome refractory bricksOutros tijolos
- 6902.10.19 Other magnesian or chrome refractory goodsOutros
- 6902.10.90 Other refractories over 50% MgO, CaO or Cr2O3Outros
All Brazil NCM codes in heading 69.02 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 6902.10
What is HS code 690210?
HS code 690210 is a 6-digit subheading in the Harmonized System that covers: Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight, singly or together, more than 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2o3. This category encompasses refractory ceramic bricks, blocks, tiles, and similar constructional goods that contain, by weight, more than 50% of magnesium (Mg), calcium (Ca), or chromium (Cr) elements, expressed as their oxides (MgO, CaO, Cr2O3). These 'basic' refractories are engineered for extreme high-temperature environments, particularly where resistance to basic slags, molten metals, and thermal shock is paramount. They are indispensable in industries such as steelmaking (e.g., electric arc furnaces, converters, ladles), cement kilns, and glass furnaces. Importers are typically heavy industrial nations with significant metallurgical or materials processing sectors. Exporters are countries with advanced refractory manufacturing capabilities and access to the necessary mineral resources. Their high performance ensures operational efficiency and longevity in demanding industrial applications.
What products fall under HS code 690210?
Magnesia bricks, Dolomite bricks, Chromite-magnesia bricks, Magnesia-carbon bricks, Calcium aluminate refractory bricks, Periclase bricks, Magnesia-spinel bricks
What are common misclassifications for HS code 690210?
Can be confused with 681591 if the articles are not ceramic (i.e., not fired to form a ceramic bond), or with other refractory ceramics in 690220 if the exact chemical composition is not carefully checked.
Which countries are the top exporters of goods under HS code 690210?
In 2025, the top exporters of HS code 690210 in UN Comtrade data were China ($767M, 51% of world exports), Austria ($180M) and Germany ($147M). World exports came to about $1.5B, 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.
Which countries are the top importers of goods under HS code 690210?
In 2025, the top importers of HS code 690210 in UN Comtrade data were the United States ($121M, 7.7% of world imports), India ($117M) and Indonesia ($108M). World imports came to about $1.6B, 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 690210 structured?
HS code 690210 is a 6-digit subheading under the Harmonized System. The first 2 digits (69) identify the chapter, digits 3-4 (02) 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 690210?
Brazil splits HS code 690210 into 4 NCM codes: 6902.10.11 (Bricks or slabs over 90% dichromium trioxide), 6902.10.18 (Other magnesian or chrome refractory bricks), 6902.10.19 (Other magnesian or chrome refractory goods), 6902.10.90 (Other refractories over 50% MgO, CaO or Cr2O3). The first 6 digits of each match the HS code.