Product classification
HS code for Steel bridges: 7308.10
Iron or steel, structures and parts thereof, bridges and bridge-sections.
Classification of steel bridges under HS 7308.10
HS code 7308.10 covers bridges and bridge-sections made of iron or steel. This classification is part of the broader heading 7308, which includes structures and parts of structures. To be classified here, the product must be a fabricated structural component specifically designed for bridge construction, such as girders, trusses, or complete bridge spans. The classification is determined by the fact that these are fabricated articles, meaning they have been prepared (drilled, bent, notched, or welded) for use in a specific structure. Unlike raw steel beams or plates found in Chapter 72, products in 7308.10 are engineered components. This includes large-scale girders, trusses, and even complete prefabricated modular bridges. The classification remains here regardless of whether the bridge is for vehicular, rail, or pedestrian use. The key is the structural intent and the level of fabrication. If the steel components are imported as simple, unworked beams, they would be classified in Chapter 72. However, once they are cut to length, drilled with bolt holes, or welded into assemblies, they move to 7308. This code also includes bridge-sections, which are large parts of a bridge that are transported to the site for final assembly.
- Covers
- Steel bridge sections
- Prefabricated steel bridges
- Pedestrian bridge structures
- Bridge girders and trusses
- Modular steel bridge spans
- Also under 7308.10
- ArcelorMittal bridge steel
- Nippon Steel bridge components
- China Railway Major Bridge Engineering Group projects
- thyssenkrupp Infrastructure
Codes often confused with 7308.10
Common mistake. Steel bridges are sometimes misclassified under 7301, which covers sheet piling. They may also be confused with 8426 if they are mobile lifting frames or bridge cranes. Other structural steel not specific to bridges, such as towers or masts, falls under 7308.90.
Top exporters and importers of HS 730810 (the code used for steel bridges), 2025
In 2025, the largest exporter of HS 730810 (the code used for steel bridges) in UN Comtrade data was Bahrain, with about 24% of world exports; the largest importer in UN Comtrade data was Saudi Arabia, with 28% of world imports. The United Arab Emirates did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 87% of its imports here ($87M, CEPII BACI), so it may also belong among the top importers.
Figures cover everything classified under HS 730810, not only steel bridges.
Top exporters 2025 · share of world exports
- 1 Bahrain* ~$338M 24% of world exports · partner records ↗
- 2 China $173M 12% of world exports
- 3 Italy $66M 4.8% of world exports
World total: $1.4B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Saudi Arabia $413M 28% of world imports
- 2 Norway $76M 5.1% of world imports
- 3 Canada $62M 4.2% of world imports
The United Arab Emirates did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 87% of its imports here ($87M, CEPII BACI), so it may also belong among the top importers.
World total: $1.5B 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 steel bridges
Brazil classifies steel bridges under NCM 7308.10.00: HS 7308.10 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 steel bridges
What is the HS code for Steel bridges?
The HS code for Steel bridges is 730810 (Iron or steel; structures and parts thereof, bridges and bridge-sections). The HS code for bridges and bridge-sections made of iron or steel is 7308.10.
How do I classify Steel bridges for customs?
Steel bridges is classified under HS code 730810 — Iron or steel; structures and parts thereof, bridges and bridge-sections. This is a 6-digit subheading level code.
Does this include bridge railings?
Bridge railings are typically classified under 7308.90 as other structures, unless they are imported as an integral, inseparable part of a bridge section under 7308.10.
Which countries are the top exporters of steel bridges (HS 730810)?
In 2025, the top exporters of HS 730810 (the code used for steel bridges) in UN Comtrade data were Bahrain (about $338M, 24% of world exports), China ($173M) and Italy ($66M). World exports came to about $1.4B, 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 steel bridges (HS 730810)?
In 2025, the top importers of HS 730810 (the code used for steel bridges) in UN Comtrade data were Saudi Arabia ($413M, 28% of world imports), Norway ($76M) and Canada ($62M). World imports came to about $1.5B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). The United Arab Emirates did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 87% of its imports here ($87M, CEPII BACI), so it may also belong among the top importers.
Is the HS code for Steel bridges the same in all countries?
The base HS code 730810 for Steel bridges 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 steel bridges in Brazil?
In Brazil, steel bridges (HS 730810) is classified under NCM 7308.10.00.