Product classification
HS code for Concrete structural components: 6810.91
Cement, concrete or artificial stone, prefabricated structural components for building or civil engineering, whether or not reinforced.
Classification of concrete structural components under HS 6810.91
Prefabricated structural components made of concrete are classified under HS code 6810.91. Chapter 68 covers articles of stone, plaster, cement, asbestos, mica, or similar materials. Heading 6810 specifically addresses articles of cement, concrete, or artificial stone, whether or not reinforced. The subheading 6810.91 is reserved for prefabricated structural components for building or civil engineering. This classification is applied because the products are finished articles that have been cast and cured in a factory environment before being transported to a construction site for assembly. The presence of steel reinforcement (rebar) or prestressing cables does not change this classification, as the essential character of the article is provided by the concrete.
- Covers
- Precast concrete bridge girders and beams
- Prefabricated concrete floor slabs and roof elements
- Precast concrete columns and pillars
- Concrete foundation piles
- Prefabricated wall panels for industrial buildings
- Also under 6810.91
- LafargeHolcim (precast solutions)
- Skanska (prefabricated elements)
- Tindall Corporation (precast concrete)
- Oldcastle Infrastructure (precast utility products)
Codes often confused with 6810.91
Common mistake. These components are often confused with HS code 6810.11, which covers building blocks and bricks. While both are made of concrete, 6810.91 is specific to "structural" components used in engineering, whereas 6810.11 is for standard masonry units. Another common misclassification is HS code 9406.90 for prefabricated buildings. While structural components are used to make buildings, 9406 is only for complete or substantially complete buildings presented as a single unit. Individual beams or slabs always fall under 6810.91.
Top exporters and importers of HS 681091 (the code used for concrete structural components), 2025
In 2025, the largest exporter of HS 681091 (the code used for concrete structural components) in UN Comtrade data was Malaysia, with 17% of world exports; the largest importer in UN Comtrade data was Singapore, with 21% 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 681091, not only concrete structural components.
Top exporters 2025 · share of world exports
- 1 Malaysia $561M 17% of world exports
- 2 Germany $484M 15% of world exports
- 3 China $342M 10% of world exports
World total: $3.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Singapore $647M 21% of world imports
- 2 Germany $276M 8.9% of world imports
- 3 Netherlands $264M 8.5% of world imports
World total: $3.1B 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 concrete structural components
Brazil classifies concrete structural components under NCM 6810.91.00: HS 6810.91 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about concrete structural components
What is the HS code for Concrete structural components?
The HS code for Concrete structural components is 681091 (Cement, concrete or artificial stone; prefabricated structural components for building or civil engineering, whether or not reinforced). The HS code for prefabricated structural components of concrete is 6810.91.
How do I classify Concrete structural components for customs?
Concrete structural components is classified under HS code 681091 — Cement, concrete or artificial stone; prefabricated structural components for building or civil engineering, whether or not reinforced. This is a 6-digit subheading level code.
Does this code include reinforced concrete?
Yes, HS code 6810.91 includes components whether they are plain, reinforced with steel, or prestressed, as long as they are prefabricated for structural use.
Which countries are the top exporters of concrete structural components (HS 681091)?
In 2025, the top exporters of HS 681091 (the code used for concrete structural components) in UN Comtrade data were Malaysia ($561M, 17% of world exports), Germany ($484M) and China ($342M). World exports came to about $3.3B, 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 structural components (HS 681091)?
In 2025, the top importers of HS 681091 (the code used for concrete structural components) in UN Comtrade data were Singapore ($647M, 21% of world imports), Germany ($276M) and the Netherlands ($264M). World imports came to about $3.1B, 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.
Is the HS code for Concrete structural components the same in all countries?
The base HS code 681091 for Concrete structural components 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 structural components in Brazil?
In Brazil, concrete structural components (HS 681091) is classified under NCM 6810.91.00.