Product classification
HS code for Aluminous cement: 2523.30
Cement, aluminous (ciment fondu), whether or not coloured or in the form of clinkers.
Classification of aluminous cement under HS 2523.30
Aluminous cement, also widely known as ciment fondu or calcium aluminate cement, is classified under HS code 252330. This classification is precise, directly identifying cement that is specifically "aluminous." The description further clarifies that this includes such cement whether it is colored or in the form of clinkers. The defining characteristic for this code is the chemical composition, specifically the high alumina content, which imparts unique properties compared to other types of cement. This distinct chemical makeup and resulting performance attributes, such as rapid hardening and resistance to chemical attack, are the primary reasons for its dedicated classification.
- Covers
- Ciment fondu
- High-alumina cement
- Calcium aluminate cement
- Aluminous cement clinkers
- Refractory aluminous cement
- Also under 2523.30
- Kerneos Ciment Fondu
- Almatis Calcium Aluminate Cement
- Denka Alumina Cement
- Calucem
Codes often confused with 2523.30
Common mistake. Aluminous cement is sometimes confused with other types of hydraulic cements. HS code 252329 covers other Portland cement, which is the most common type of cement but differs significantly in chemical composition and performance from aluminous cement. HS code 252390 encompasses other hydraulic cements not specifically provided for elsewhere, which might be a default if the specific "aluminous" characteristic is overlooked. The key differentiator for 252330 is the explicit mention of "aluminous" cement, referring to its high calcium aluminate content, which provides distinct properties such as high early strength, resistance to sulfates, and suitability for high-temperature applications, unlike standard Portland cements.
Top exporters and importers of HS 252330 (the code used for aluminous cement), 2025
In 2025, the largest exporter of HS 252330 (the code used for aluminous cement) in UN Comtrade data was Croatia, with 28% of world exports; the largest importer in UN Comtrade data was Germany, with 15% 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 252330, not only aluminous cement.
Top exporters 2025 · share of world exports
- 1 Croatia $65M 28% of world exports
- 2 United Kingdom $43M 18% of world exports
- 3 China $27M 11% of world exports
World total: $234M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $80M 15% of world imports
- 2 United States $78M 15% of world imports
- 3 Italy $43M 8.1% of world imports
World total: $525M 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 code for aluminous cement
Brazil classifies aluminous cement under NCM 2523.30.00: HS 2523.30 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
EU Regulatory Requirements
This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.
Questions about aluminous cement
What is the HS code for Aluminous cement?
The HS code for Aluminous cement is 252330 (Cement; aluminous (ciment fondu), whether or not coloured or in the form of clinkers). The HS code for aluminous cement, also known as ciment fondu, whether or not colored or in the form of clinkers, is 252330.
How do I classify Aluminous cement for customs?
Aluminous cement is classified under HS code 252330 — Cement; aluminous (ciment fondu), whether or not coloured or in the form of clinkers. This is a 6-digit subheading level code.
What are the primary characteristics of aluminous cement?
Aluminous cement is primarily characterized by its high early strength development, excellent resistance to chemical attack (especially sulfates), and superior performance in high-temperature environments. These properties stem from its unique chemical composition, predominantly calcium aluminates, which differentiate it from Portland cement.
Which countries are the top exporters of aluminous cement (HS 252330)?
In 2025, the top exporters of HS 252330 (the code used for aluminous cement) in UN Comtrade data were Croatia ($65M, 28% of world exports), the United Kingdom ($43M) and China ($27M). World exports came to about $234M, 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 aluminous cement (HS 252330)?
In 2025, the top importers of HS 252330 (the code used for aluminous cement) in UN Comtrade data were Germany ($80M, 15% of world imports), the United States ($78M) and Italy ($43M). World imports came to about $525M, 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 Aluminous cement the same in all countries?
The base HS code 252330 for Aluminous cement 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 aluminous cement in Brazil?
In Brazil, aluminous cement (HS 252330) is classified under NCM 2523.30.00.