HS code · 6-digit subheading
HS Code 2929.10 – Nitrogen-function compounds; n.e.c. in chapter 29, isocyanates
HS code 2929.10 is the 6-digit subheading for nitrogen-function compounds, n.e.c. in chapter 29, isocyanates. It is used for toluene diisocyanate (TDI), methylene diphenyl diisocyanate (MDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI) and xylene diisocyanate (XDI).
What HS 2929.10 covers
This specific HS code is dedicated to isocyanates, which are organic compounds containing the isocyanate functional group (-N=C=O). These chemicals are of immense industrial importance, primarily as key building blocks for the production of polyurethanes, widely used in foams, coatings, adhesives, sealants, and elastomers. The global trade in isocyanates is driven by demand from the construction, automotive, furniture, and electronics industries. Major importers include countries with large manufacturing bases for polyurethane products, such as China, the United States, Germany, and other industrialized nations. Exporters are typically large chemical conglomerates with significant production capacities, often located in Germany, China, and the US. Key aspects of trading isocyanates involve their specific type (e.g., MDI, TDI, HDI), purity, and reactivity, which dictate their suitability for various polyurethane applications. Due to their reactive nature and potential health hazards, strict safety, handling, and transportation regulations are critical in international trade.
- Covers
- Toluene diisocyanate (TDI)
- Methylene diphenyl diisocyanate (MDI)
- Hexamethylene diisocyanate (HDI)
- Isophorone diisocyanate (IPDI)
- Xylene diisocyanate (XDI)
- Cyclohexyl diisocyanate (CHDI)
- Phenyl isocyanate
- Methyl isocyanate
- Examples
- Covestro's TDI
- BASF's MDI
- Wanhua Chemical's HDI
- Dow Chemical's Polyurethane Systems
Codes often confused with 2929.10
Common mistake. This code is distinct for isocyanates, but could be confused with other nitrogen-function compounds under 292990 if the specific isocyanate functional group is not recognized.
Top exporters and importers of HS code 292910, 2025
In 2025, the largest exporter of HS code 292910 in UN Comtrade data was China, with 27% of world exports; the largest importer in UN Comtrade data was China, with 6.7% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 China $1.4B 27% of world exports
- 2 South Korea $748M 15% of world exports
- 3 Germany $586M 12% of world exports
World total: $5.0B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $347M 6.7% of world imports
- 2 India $325M 6.3% of world imports
- 3 Italy $260M 5.0% of world imports
World total: $5.2B 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 codes for 2929.10 5
Brazil splits HS 2929.10 into 5 NCM codes, Mercosur's 8-digit tariff lines.
- 2929.10.10 Diphenylmethane diisocyanate (MDI)Di-isocianato de difenilmetano
- 2929.10.2 Toluene diisocyanatesDi-isocianatos de tolueno Group
- 2929.10.21 Toluene diisocyanate (TDI), isomer mixtureMistura de isômeros
- 2929.10.29 Other toluene diisocyanatesOutros
- 2929.10.30 3,4-Dichlorophenyl isocyanateIsocianato de 3,4-diclorofenila
- 2929.10.90 Other isocyanatesOutros
All Brazil NCM codes in heading 29.29 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2929.10
What is HS code 292910?
HS code 292910 is a 6-digit subheading in the Harmonized System that covers: Nitrogen-function compounds; n.e.c. in chapter 29, isocyanates. This specific HS code is dedicated to isocyanates, which are organic compounds containing the isocyanate functional group (-N=C=O). These chemicals are of immense industrial importance, primarily as key building blocks for the production of polyurethanes, widely used in foams, coatings, adhesives, sealants, and elastomers. The global trade in isocyanates is driven by demand from the construction, automotive, furniture, and electronics industries. Major importers include countries with large manufacturing bases for polyurethane products, such as China, the United States, Germany, and other industrialized nations. Exporters are typically large chemical conglomerates with significant production capacities, often located in Germany, China, and the US. Key aspects of trading isocyanates involve their specific type (e.g., MDI, TDI, HDI), purity, and reactivity, which dictate their suitability for various polyurethane applications. Due to their reactive nature and potential health hazards, strict safety, handling, and transportation regulations are critical in international trade.
What products fall under HS code 292910?
Toluene diisocyanate (TDI), Methylene diphenyl diisocyanate (MDI), Hexamethylene diisocyanate (HDI), Isophorone diisocyanate (IPDI), Xylene diisocyanate (XDI), Cyclohexyl diisocyanate (CHDI), Phenyl isocyanate, Methyl isocyanate
What are common misclassifications for HS code 292910?
This code is distinct for isocyanates, but could be confused with other nitrogen-function compounds under 292990 if the specific isocyanate functional group is not recognized.
Which countries are the top exporters of goods under HS code 292910?
In 2025, the top exporters of HS code 292910 in UN Comtrade data were China ($1.4B, 27% of world exports), South Korea ($748M) and Germany ($586M). World exports came to about $5.0B, 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 goods under HS code 292910?
In 2025, the top importers of HS code 292910 in UN Comtrade data were China ($347M, 6.7% of world imports), India ($325M) and Italy ($260M). World imports came to about $5.2B, 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.
How is HS code 292910 structured?
HS code 292910 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (29) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 292910?
Brazil splits HS code 292910 into 5 NCM codes: 2929.10.10 (Diphenylmethane diisocyanate (MDI)), 2929.10.21 (Toluene diisocyanate (TDI), isomer mixture), 2929.10.29 (Other toluene diisocyanates), 2929.10.30 (3,4-Dichlorophenyl isocyanate), 2929.10.90 (Other isocyanates). The first 6 digits of each match the HS code.