HS code · 6-digit subheading
HS Code 6902.90 – Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; n.e.c. in item no. 6902.1 or 6902.2
HS code 6902.90 is the 6-digit subheading for refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, n.e.c. in item no. 6902.1 or 6902.2. It is used for zirconia bricks, silicon carbide bricks, chromia-alumina bricks (less than 50% Cr2O3), carbon-bonded alumina bricks and fused cast refractories (not fitting 6902.1/2).
What HS 6902.90 covers
This is a residual HS code for refractory ceramic bricks, blocks, tiles, and similar constructional goods that do not meet the specific compositional criteria of 690210 (Mg, Ca, Cr oxides) or 690220 (Al2O3, SiO2). This category encompasses a diverse array of specialized refractories, often incorporating other oxides like zirconia, chromia (below 50%), silicon carbide, or unique combinations designed for very specific, demanding industrial applications. These materials are crucial for niche high-temperature environments where standard refractories might fail, offering tailored properties such as enhanced corrosion resistance, specific thermal conductivity, or superior mechanical strength. Importers are typically specialized industries requiring bespoke refractory solutions. Exporters are advanced refractory manufacturers capable of producing these complex compositions. Their trade reflects the global need for highly engineered materials in cutting-edge industrial processes.
- Covers
- Zirconia bricks
- Silicon carbide bricks
- Chromia-alumina bricks (less than 50% Cr2O3)
- Carbon-bonded alumina bricks
- Fused cast refractories (not fitting 6902.1/2)
- Phosphate-bonded refractories
- Spinel bricks
- Examples
- Saint-Gobain ZirPro zirconia refractories
- Vesuvius silicon carbide products
- SEFPRO fused cast refractories
- Krosaki Harima specialized bricks
Codes often confused with 6902.90
Common mistake. This code is a catch-all for refractory bricks not meeting the specific compositional thresholds of 690210 or 690220. It can be confused with 6903 (other refractory ceramic goods) if the item is not primarily 'constructional'.
Top exporters and importers of HS code 690290, 2025
In 2025, the largest exporter of HS code 690290 in UN Comtrade data was China, with 28% of world exports; the largest importer in UN Comtrade data was India, with 8.9% 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 $138M 28% of world exports
- 2 Germany $51M 10% of world exports
- 3 Japan $46M 9.3% of world exports
World total: $487M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $67M 8.9% of world imports
- 2 Indonesia $52M 6.9% of world imports
- 3 China $51M 6.8% of world imports
World total: $757M 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 6902.90 5
Brazil splits HS 6902.90 into 5 NCM codes, Mercosur's 8-digit tariff lines.
- 6902.90.10 Graphite refractory bricks and tilesDe grafita
- 6902.90.20 Unfused refractories over 25% zirconium oxideNão fundidos, com um teor de óxido de zircônio (ZrO2) superior a 25 %, em peso
- 6902.90.30 Blast-furnace carbon refractories over 85% carbonCom um teor de carbono superior a 85 %, em peso, e diâmetro médio de poro inferior ou igual a 5 micrômetros (mícrons), do tipo utilizado em altos-fornos
- 6902.90.40 Silicon carbide refractory bricks and tilesDe carboneto de silício
- 6902.90.90 Other refractory bricks, blocks and tilesOutros
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 6902.90
What is HS code 690290?
HS code 690290 is a 6-digit subheading in the Harmonized System that covers: Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; n.e.c. in item no. 6902.1 or 6902.2. This is a residual HS code for refractory ceramic bricks, blocks, tiles, and similar constructional goods that do not meet the specific compositional criteria of 690210 (Mg, Ca, Cr oxides) or 690220 (Al2O3, SiO2). This category encompasses a diverse array of specialized refractories, often incorporating other oxides like zirconia, chromia (below 50%), silicon carbide, or unique combinations designed for very specific, demanding industrial applications. These materials are crucial for niche high-temperature environments where standard refractories might fail, offering tailored properties such as enhanced corrosion resistance, specific thermal conductivity, or superior mechanical strength. Importers are typically specialized industries requiring bespoke refractory solutions. Exporters are advanced refractory manufacturers capable of producing these complex compositions. Their trade reflects the global need for highly engineered materials in cutting-edge industrial processes.
What products fall under HS code 690290?
Zirconia bricks, Silicon carbide bricks, Chromia-alumina bricks (less than 50% Cr2O3), Carbon-bonded alumina bricks, Fused cast refractories (not fitting 6902.1/2), Phosphate-bonded refractories, Spinel bricks
What are common misclassifications for HS code 690290?
This code is a catch-all for refractory bricks not meeting the specific compositional thresholds of 690210 or 690220. It can be confused with 6903 (other refractory ceramic goods) if the item is not primarily 'constructional'.
Which countries are the top exporters of goods under HS code 690290?
In 2025, the top exporters of HS code 690290 in UN Comtrade data were China ($138M, 28% of world exports), Germany ($51M) and Japan ($46M). World exports came to about $487M, 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 690290?
In 2025, the top importers of HS code 690290 in UN Comtrade data were India ($67M, 8.9% of world imports), Indonesia ($52M) and China ($51M). World imports came to about $757M, 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 690290 structured?
HS code 690290 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 (90) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 690290?
Brazil splits HS code 690290 into 5 NCM codes: 6902.90.10 (Graphite refractory bricks and tiles), 6902.90.20 (Unfused refractories over 25% zirconium oxide), 6902.90.30 (Blast-furnace carbon refractories over 85% carbon), 6902.90.40 (Silicon carbide refractory bricks and tiles), 6902.90.90 (Other refractory bricks, blocks and tiles). The first 6 digits of each match the HS code.