Product classification

HS code for Treated timber logs: 4403.12

Wood, non-coniferous species, in the rough, whether or not stripped of bark or sapwood, or roughly squared, treated with paint, stains, creosote or other preservatives.

Classification of treated timber logs under HS 4403.12

Treated timber logs are classified under HS code 4403.12, which falls under the broader heading 4403 for wood in the rough. This heading includes wood in its natural state as felled, whether or not stripped of bark or sapwood, or roughly squared. The specific subheading 4403.12 is reserved for non-coniferous species that have been treated with paint, stains, creosote, or other preservatives. This treatment is applied to prevent rot and insect damage during storage or for specific end-uses like utility poles or fence posts. The classification is determined by the degree of processing; the wood must still be "in the rough" and not yet sawn into planks or beams. If the log has been significantly shaped beyond rough squaring, it may move to a different heading. The non-coniferous requirement means the wood must come from broad-leaved trees rather than needle-bearing trees. This code is vital for environmental and agricultural authorities to track the movement of treated wood products that may contain hazardous chemicals.

Covers
  • Treated oak logs in the rough
  • Creosote-treated utility poles (non-coniferous)
  • Stained beech logs for outdoor construction
  • Roughly squared eucalyptus logs treated with preservatives
  • Non-coniferous fence posts in the rough state
Also under 4403.12
  • Koppers (treated wood products)
  • Stella-Jones (utility poles)
  • Arch Wood Protection (preservatives)
  • Tanalith (wood preservatives)

Codes often confused with 4403.12

Common mistake. The most common misclassification occurs with HS code 4403.11, which is used for treated coniferous logs (like pine or spruce). Another common error is using heading 4407, which is for wood sawn or chipped lengthwise; if the log has been sawn into boards, it no longer qualifies as "in the rough." Furthermore, if the logs are untreated, they would fall under various other subheadings of 4403 depending on the specific wood species, such as 4403.41 for certain tropical woods or 4403.91 for oak.

4403.11Wood; coniferous species, in the rough, whether or not stripped of bark or sapwood, or roughly squared; treated with paint, stains, creosote or other preservatives44.07Wood sawn or chipped lengthwise, sliced or peeled, whether or not planed, sanded or finger-jointed, of a thickness exceeding 6mm44.03Wood in the rough, whether or not stripped of bark or sapwood, or roughly squared4403.41Wood, tropical; as specified in Subheading Note 2 to this Chapter, dark red meranti, light red meranti and meranti bakau, in the rough, whether or not stripped of bark or sapwood, or roughly squared, untreated4403.91Wood; oak, in the rough, whether or not stripped of bark or sapwood, or roughly squared, untreated

Top exporters and importers of HS 440312 (the code used for treated timber logs), 2025

In 2025, the largest exporter of HS 440312 (the code used for treated timber logs) in UN Comtrade data was Latvia, with 24% of world exports; the largest importer in UN Comtrade data was Slovakia, with 27% 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 440312, not only treated timber logs.

Top exporters 2025 · share of world exports

  1. 1 Latvia $15M
  2. 2 Eswatini* ~$13M
  3. 3 Lithuania $5.8M

World total: $65M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 Slovakia $25M
  2. 2 Netherlands $11M
  3. 3 South Africa $11M

World total: $93M 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 treated timber logs

Brazil classifies treated timber logs under NCM 4403.12.00: HS 4403.12 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 treated timber logs

What is the HS code for Treated timber logs?

The HS code for Treated timber logs is 440312 (Wood; non-coniferous species, in the rough, whether or not stripped of bark or sapwood, or roughly squared; treated with paint, stains, creosote or other preservatives). The HS code for treated, non-coniferous timber logs in the rough is 4403.12.

How do I classify Treated timber logs for customs?

Treated timber logs is classified under HS code 440312 — Wood; non-coniferous species, in the rough, whether or not stripped of bark or sapwood, or roughly squared; treated with paint, stains, creosote or other preservatives. This is a 6-digit subheading level code.

What qualifies as "treated" under this HS code?

Wood is considered treated if it has been injected with or surface-coated with preservatives like creosote, pentachlorophenol, or various metallic salts to prevent decay.

Which countries are the top exporters of treated timber logs (HS 440312)?

In 2025, the top exporters of HS 440312 (the code used for treated timber logs) in UN Comtrade data were Latvia ($15M, 24% of world exports), Eswatini (about $13M) and Lithuania ($5.8M). World exports came to about $65M, 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 treated timber logs (HS 440312)?

In 2025, the top importers of HS 440312 (the code used for treated timber logs) in UN Comtrade data were Slovakia ($25M, 27% of world imports), the Netherlands ($11M) and South Africa ($11M). World imports came to about $93M, 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 Treated timber logs the same in all countries?

The base HS code 440312 for Treated timber logs 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 treated timber logs in Brazil?

In Brazil, treated timber logs (HS 440312) is classified under NCM 4403.12.00.