HS code · 6-digit subheading
HS Code 3824.40 – Cements, mortars or concretes; their prepared additives
HS code 3824.40 is the 6-digit subheading for cements, mortars or concretes, their prepared additives. It is used for superplasticizers, air-entraining agents, set retarders, set accelerators and waterproofing admixtures.
What HS 3824.40 covers
This HS code covers prepared additives specifically designed for use with cements, mortars, or concretes. These additives are essential for modifying and enhancing the properties of concrete mixes, improving workability, strength, setting time, or durability. Key importers and exporters include construction companies, concrete manufacturers, precast concrete producers, and chemical companies specializing in construction materials. The trade in these additives is crucial for tailoring concrete properties to specific project requirements, improving overall performance, and often reducing construction costs. Compliance with regulatory standards for construction materials is a vital aspect of this trade.
- Covers
- Superplasticizers
- Air-entraining agents
- Set retarders
- Set accelerators
- Waterproofing admixtures
- Corrosion inhibitors
- Shrinkage-reducing admixtures
- Viscosity modifying agents
- Examples
- Sika Admixtures
- BASF Master Builders Solutions
- GCP Applied Technologies Admixtures
- Chryso Admixtures
- Fosroc Admixtures
Codes often confused with 3824.40
Common mistake. Could be confused with raw cement (2523), sand/aggregates (Chapter 25), or other construction chemicals not specifically designed as additives for cement, mortar, or concrete.
Top exporters and importers of HS code 382440, 2025
In 2025, the largest exporter of HS code 382440 in UN Comtrade data was China, with 20% of world exports; the largest importer in UN Comtrade data was Germany, with 4.3% 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 $388M 20% of world exports
- 2 Germany $244M 12% of world exports
- 3 Italy $175M 8.8% of world exports
World total: $2.0B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $90M 4.3% of world imports
- 2 United States $76M 3.6% of world imports
- 3 India $58M 2.8% of world imports
World total: $2.1B 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 3824.40
Brazil does not split HS 3824.40: its NCM code is 3824.40.00.
All Brazil NCM codes in heading 38.24 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 3824.40
What is HS code 382440?
HS code 382440 is a 6-digit subheading in the Harmonized System that covers: Cements, mortars or concretes; their prepared additives. This HS code covers prepared additives specifically designed for use with cements, mortars, or concretes. These additives are essential for modifying and enhancing the properties of concrete mixes, improving workability, strength, setting time, or durability. Key importers and exporters include construction companies, concrete manufacturers, precast concrete producers, and chemical companies specializing in construction materials. The trade in these additives is crucial for tailoring concrete properties to specific project requirements, improving overall performance, and often reducing construction costs. Compliance with regulatory standards for construction materials is a vital aspect of this trade.
What products fall under HS code 382440?
Superplasticizers, air-entraining agents, set retarders, set accelerators, waterproofing admixtures, corrosion inhibitors, shrinkage-reducing admixtures, viscosity modifying agents
What are common misclassifications for HS code 382440?
Could be confused with raw cement (2523), sand/aggregates (Chapter 25), or other construction chemicals not specifically designed as additives for cement, mortar, or concrete.
Which countries are the top exporters of goods under HS code 382440?
In 2025, the top exporters of HS code 382440 in UN Comtrade data were China ($388M, 20% of world exports), Germany ($244M) and Italy ($175M). 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 goods under HS code 382440?
In 2025, the top importers of HS code 382440 in UN Comtrade data were Germany ($90M, 4.3% of world imports), the United States ($76M) and India ($58M). World imports came to about $2.1B, 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 382440 structured?
HS code 382440 is a 6-digit subheading under the Harmonized System. The first 2 digits (38) identify the chapter, digits 3-4 (24) identify the heading, and digits 5-6 (40) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 382440?
In Brazil, HS code 382440 is NCM 3824.40.00. The last two digits are 00 because Brazil does not split this HS code further.