Product classification
HS code for Precast concrete: 6810.91
Cement, concrete or artificial stone, prefabricated structural components for building or civil engineering, whether or not reinforced.
Classification of precast concrete under HS 6810.91
Precast concrete components are classified under HS code 6810.91. This code specifically covers prefabricated structural components for building or civil engineering made from cement, concrete, or artificial stone. These items are manufactured in a controlled factory environment before being transported to a construction site for installation. The classification is determined by the material composition (Chapter 68) and the intended use as a structural element. Whether the concrete is reinforced with steel bars or mesh does not change this classification, as the code explicitly includes both reinforced and non-reinforced prefabricated components. The key factor is that the product is a finished structural part rather than a raw material or a complete building.
- Covers
- Precast concrete beams and columns
- Prefabricated concrete floor slabs
- Concrete bridge sections
- Precast wall panels for buildings
- Concrete piles and foundation elements
- 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. Which other HS codes get confused with this one and why. Mention specific code numbers. Precast concrete is often confused with HS code 9406.90, which covers prefabricated buildings. If the shipment contains all components to assemble a complete building, 9406.90 is used; however, individual structural components belong in 6810.91. Another confusion is with 6810.11, which is specifically for building blocks and bricks, rather than structural components.
Top exporters and importers of HS 681091 (the code used for precast concrete), 2025
In 2025, the largest exporter of HS 681091 (the code used for precast concrete) 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 precast concrete.
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 precast concrete
Brazil classifies precast concrete 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 precast concrete
What is the HS code for Precast concrete?
The HS code for Precast concrete is 681091 (Cement, concrete or artificial stone; prefabricated structural components for building or civil engineering, whether or not reinforced). The HS code for precast concrete structural components is 6810.91.
How do I classify Precast concrete for customs?
Precast concrete 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 reinforcement change the HS code?
No, HS code 6810.91 applies to prefabricated structural components whether or not they are reinforced with steel.
Which countries are the top exporters of precast concrete (HS 681091)?
In 2025, the top exporters of HS 681091 (the code used for precast concrete) 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 precast concrete (HS 681091)?
In 2025, the top importers of HS 681091 (the code used for precast concrete) 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 Precast concrete the same in all countries?
The base HS code 681091 for Precast concrete 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 precast concrete in Brazil?
In Brazil, precast concrete (HS 681091) is classified under NCM 6810.91.00.