Product classification
HS code for Concrete blocks: 6810.11
Cement, concrete or artificial stone, building blocks or bricks, whether or not reinforced.
Classification of concrete blocks under HS 6810.11
Concrete blocks are classified under HS code 6810.11, which falls within Chapter 68: Articles of stone, plaster, cement, asbestos, mica or similar materials. This specific subheading is designated for building blocks and bricks made of cement, concrete, or artificial stone, whether or not they are reinforced with metal or other materials. The classification is determined by the primary material—concrete—and the intended use as a discrete unit for masonry construction. These items are manufactured by molding a mixture of cement, aggregates (such as sand, gravel, or crushed stone), and water. The resulting product is a building unit used to construct walls, partitions, and other structures. The code 6810.11 specifically excludes prefabricated structural components for building or civil engineering, which are classified under 6810.91. It also excludes ceramic bricks, which are found in Chapter 69. The distinction between a block and a prefabricated component is often based on size and the degree of engineering; blocks are generally standard sizes used by masons, whereas components are often custom-engineered for specific structural roles. This classification ensures that basic building materials are separated from complex structural elements.
- Covers
- Hollow concrete blocks (CMUs)
- Solid cinder blocks
- Aerated concrete blocks (AAC)
- Lightweight concrete building bricks
- Paving blocks made of concrete
- Also under 6810.11
- Oldcastle APG (Belgard blocks)
- CEMEX (concrete blocks)
- CRH (concrete masonry)
- Boral (concrete bricks)
Codes often confused with 6810.11
Common mistake. Concrete blocks are often misclassified under 6810.91, which is reserved for prefabricated structural components like beams or wall panels. They may also be confused with 6904.10, which covers ceramic building bricks. It is vital to distinguish the material (cement vs. clay) and the function (standard block vs. engineered component) to avoid using the incorrect code. Paving stones may also be confused with 6801.00 if they are made of natural stone rather than concrete.
Top exporters and importers of HS 681011 (the code used for concrete blocks), 2025
In 2025, the largest exporter of HS 681011 (the code used for concrete blocks) in UN Comtrade data was Germany, with 18% of world exports; the largest importer in UN Comtrade data was Belgium, with 8.0% 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 681011, not only concrete blocks.
Top exporters 2025 · share of world exports
- 1 Germany $153M 18% of world exports
- 2 Netherlands $89M 10% of world exports
- 3 China $70M 8.0% of world exports
World total: $872M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Belgium $65M 8.0% of world imports
- 2 Netherlands $59M 7.1% of world imports
- 3 United States $54M 6.5% of world imports
World total: $822M 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 concrete blocks
Brazil classifies concrete blocks under NCM 6810.11.00: HS 6810.11 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about concrete blocks
What is the HS code for Concrete blocks?
The HS code for Concrete blocks is 681011 (Cement, concrete or artificial stone; building blocks or bricks, whether or not reinforced). The HS code for concrete building blocks and bricks is 6810.11.
How do I classify Concrete blocks for customs?
Concrete blocks is classified under HS code 681011 — Cement, concrete or artificial stone; building blocks or bricks, whether or not reinforced. This is a 6-digit subheading level code.
Are reinforced concrete blocks classified differently?
No, HS code 6810.11 covers concrete blocks whether or not they are reinforced with metal or other materials.
Which countries are the top exporters of concrete blocks (HS 681011)?
In 2025, the top exporters of HS 681011 (the code used for concrete blocks) in UN Comtrade data were Germany ($153M, 18% of world exports), the Netherlands ($89M) and China ($70M). World exports came to about $872M, 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 concrete blocks (HS 681011)?
In 2025, the top importers of HS 681011 (the code used for concrete blocks) in UN Comtrade data were Belgium ($65M, 8.0% of world imports), the Netherlands ($59M) and the United States ($54M). World imports came to about $822M, 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 Concrete blocks the same in all countries?
The base HS code 681011 for Concrete blocks 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 concrete blocks in Brazil?
In Brazil, concrete blocks (HS 681011) is classified under NCM 6810.11.00.