Product classification
HS code for Coniferous railway sleepers: 4406.11
Wood, railway or tramway sleepers (cross-ties), not impregnated, coniferous.
Classification of coniferous railway sleepers under HS 4406.11
HS code 4406.11 is specifically for coniferous railway or tramway sleepers, also known as cross-ties, that have not been impregnated. Sleepers are heavy timber supports laid transversely under rails to maintain gauge and distribute the load. The not impregnated status means the wood has not been treated with deep-penetrating preservatives such as creosote, coal tar, or various water-borne salts. While the wood may be seasoned or surface-treated for temporary protection during transport, it must not have undergone the pressure-treatment processes typical of permanent railway infrastructure. If the sleepers are impregnated, they must be classified under 4406.91. This distinction is important because treated wood is subject to different environmental regulations and import duties in many jurisdictions due to the chemicals involved in the preservation process. The classification is based on the intended use as a rail support and the botanical origin of the wood. Coniferous sleepers are often preferred for certain track types due to their weight-to-strength ratio and availability.
- Covers
- Untreated pine railway sleepers
- Non-impregnated spruce tramway ties
- Coniferous cross-ties for rail tracks
- Untreated softwood sleepers for industrial sidings
- Roughly squared coniferous sleepers
- Also under 4406.11
- Various railway construction companies
- timber suppliers specializing in heavy construction wood
Codes often confused with 4406.11
Common mistake. The most common misclassification is using 4406.91, which is for impregnated coniferous sleepers. Another error is classifying sleepers as general lumber under 4407.11-19. While sleepers are sawn wood, their specific use and dimensions as rail supports mandate classification under heading 4406. Non-coniferous sleepers (e.g., oak) are classified under 4406.12 or 4406.92.
Top exporters and importers of HS 440611 (the code used for coniferous railway sleepers), 2025
In 2025, the largest exporter of HS 440611 (the code used for coniferous railway sleepers) in UN Comtrade data was Russia, with about 40% of world exports; the largest importer in UN Comtrade data was Nigeria, with 84% 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 440611, not only coniferous railway sleepers.
Top exporters 2025 · share of world exports
- 1 Russia* ~$3.8M 40% of world exports · partner records ↗
- 2 Poland $2.1M 22% of world exports
- 3 Mozambique $1.1M 11% of world exports
World total: $9.5M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Nigeria $101M 84% of world imports
- 2 Netherlands $7.0M 5.8% of world imports
- 3 Kazakhstan $3.8M 3.1% of world imports
World total: $121M 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 coniferous railway sleepers
Brazil classifies coniferous railway sleepers under NCM 4406.11.00: HS 4406.11 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 category is subject to the EU Deforestation Regulation (EUDR). Importers must provide due diligence statements proving the product was not produced on deforested land after December 31, 2020.
This product is covered by the EU Timber Regulation (EUTR), requiring operators to exercise due diligence to minimize the risk of placing illegally harvested timber on the EU market.
Questions about coniferous railway sleepers
What is the HS code for Coniferous railway sleepers?
The HS code for Coniferous railway sleepers is 440611 (Wood; railway or tramway sleepers (cross-ties), not impregnated, coniferous).
How do I classify Coniferous railway sleepers for customs?
Coniferous railway sleepers is classified under HS code 440611 — Wood; railway or tramway sleepers (cross-ties), not impregnated, coniferous. This is a 6-digit subheading level code.
What is the HS code for untreated softwood sleepers?
Untreated (not impregnated) coniferous railway sleepers are classified under HS code 4406.11.
What qualifies as impregnation for HS 4406?
Impregnation refers to the deep injection of preservatives like creosote or metallic salts; surface painting or simple seasoning does not count as impregnation.
Which countries are the top exporters of coniferous railway sleepers (HS 440611)?
In 2025, the top exporters of HS 440611 (the code used for coniferous railway sleepers) in UN Comtrade data were Russia (about $3.8M, 40% of world exports), Poland ($2.1M) and Mozambique ($1.1M). World exports came to about $9.5M, 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 coniferous railway sleepers (HS 440611)?
In 2025, the top importers of HS 440611 (the code used for coniferous railway sleepers) in UN Comtrade data were Nigeria ($101M, 84% of world imports), the Netherlands ($7.0M) and Kazakhstan ($3.8M). World imports came to about $121M, 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 Coniferous railway sleepers the same in all countries?
The base HS code 440611 for Coniferous railway sleepers 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 coniferous railway sleepers in Brazil?
In Brazil, coniferous railway sleepers (HS 440611) is classified under NCM 4406.11.00.