Product classification
HS code for Urea-formaldehyde resin: 3909.39
Amino-resins, n.e.c. in heading no. 3909, in primary forms, other than poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI).
Classification of urea-formaldehyde resin under HS 3909.39
Urea-formaldehyde resins that are modified or do not meet the specific criteria for standard urea resins are classified under HS code 3909.39. This code serves as a residual category for "Other" amino-resins in primary forms that are not urea/thiourea resins (3909.10), melamine resins (3909.20), or poly(methylene phenyl isocyanate) (3909.31). Classification under 3909.39 often applies to complex amino-resins where urea is copolymerized with other monomers or where the chemical structure has been significantly etherified or modified with alcohols to change solubility and curing properties. These resins are essential in specialized coatings, textile treatments, and high-performance laminates where standard UF resins lack the necessary moisture resistance or flexibility.
- Covers
- Modified amino-resins
- Etherified urea-formaldehyde resins
- Copolymerized amino-resins (non-melamine)
- Glyoxal-urea resins
- Amino-resins used for textile finishing
- Also under 3909.39
- Arclin UF Resins
- Hexion Melamine Resins
- Georgia-Pacific UF Resins
- Sumitomo Bakelite Melamine Molding Compounds
Codes often confused with 3909.39
Common mistake. The most common error is classifying these products under 3909.10. While they contain urea and formaldehyde, the "Other" designation in 3909.39 is required if the resin has been chemically modified beyond the standard condensation product. It is also frequently confused with 3909.31, which is specifically for Crude MDI (polymeric MDI). Importers must verify the chemical composition to ensure the resin does not contain isocyanate groups which would trigger a different classification.
Top exporters and importers of HS 390939 (the code used for urea-formaldehyde resin), 2025
In 2025, the largest exporter of HS 390939 (the code used for urea-formaldehyde resin) in UN Comtrade data was Germany, with 16% of world exports; the largest importer in UN Comtrade data was India, with 9.6% 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 390939, not only urea-formaldehyde resin.
Top exporters 2025 · share of world exports
- 1 Germany $67M 16% of world exports
- 2 Hungary $55M 13% of world exports
- 3 Poland $53M 13% of world exports
World total: $414M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $43M 9.6% of world imports
- 2 Poland $34M 7.5% of world imports
- 3 France $32M 7.2% of world imports
World total: $448M 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 urea-formaldehyde resin
Brazil classifies urea-formaldehyde resin under NCM 3909.39.00: HS 3909.39 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about urea-formaldehyde resin
What is the HS code for Urea-formaldehyde resin?
The HS code for Urea-formaldehyde resin is 390939 (Amino-resins; n.e.c. in heading no. 3909, in primary forms, other than poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)).
How do I classify Urea-formaldehyde resin for customs?
Urea-formaldehyde resin is classified under HS code 390939 — Amino-resins; n.e.c. in heading no. 3909, in primary forms, other than poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI). This is a 6-digit subheading level code.
What is the HS code for modified urea-formaldehyde resin?
Modified urea-formaldehyde resins that do not fit the standard definition of 3909.10 are classified under HS code 3909.39.
When should I use 3909.39 instead of 3909.10?
Use 3909.39 when the resin is an amino-resin other than pure urea, thiourea, or melamine resins, such as etherified or copolymerized versions.
Which countries are the top exporters of urea-formaldehyde resin (HS 390939)?
In 2025, the top exporters of HS 390939 (the code used for urea-formaldehyde resin) in UN Comtrade data were Germany ($67M, 16% of world exports), Hungary ($55M) and Poland ($53M). World exports came to about $414M, 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 urea-formaldehyde resin (HS 390939)?
In 2025, the top importers of HS 390939 (the code used for urea-formaldehyde resin) in UN Comtrade data were India ($43M, 9.6% of world imports), Poland ($34M) and France ($32M). World imports came to about $448M, 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 Urea-formaldehyde resin the same in all countries?
The base HS code 390939 for Urea-formaldehyde resin 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 urea-formaldehyde resin in Brazil?
In Brazil, urea-formaldehyde resin (HS 390939) is classified under NCM 3909.39.00.