HS code · 6-digit subheading
HS Code 2910.90 – Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, n.e.c. in heading no. 2910
HS code 2910.90 is the 6-digit subheading for epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, n.e.c. in heading no. 2910. It is used for butylene oxide, styrene oxide, cyclohexene oxide, glycidol and diglycidyl ether.
What HS 2910.90 covers
This 'basket' HS code encompasses all other epoxides, epoxyalcohols, epoxyphenols, and epoxyethers with a three-membered ring that are not specifically classified under other subheadings of 2910. This category includes a diverse range of specialty chemicals used as intermediates in the synthesis of pharmaceuticals, agrochemicals, fragrances, and advanced materials. Importers and exporters vary widely, from small, specialized fine chemical companies to larger pharmaceutical and polymer manufacturers. These compounds are valued for their unique reactivity, enabling the creation of complex molecules. Trade in this category often involves high-value, low-volume products, reflecting their niche applications and the specialized nature of their production.
- Covers
- Butylene oxide
- Styrene oxide
- Cyclohexene oxide
- Glycidol
- Diglycidyl ether
- Epoxidized soybean oil
- Examples
- Arkema Butylene Oxide
- Sigma-Aldrich Styrene Oxide
- TCI Glycidol
Codes often confused with 2910.90
Common mistake. Frequently confused with other cyclic ethers (2932.99) or even other oxygen-containing heterocyclic compounds if the specific three-membered epoxide ring is not correctly identified.
Top exporters and importers of HS code 291090, 2025
In 2025, the largest exporter of HS code 291090 in UN Comtrade data was China, with 23% of world exports; the largest importer in UN Comtrade data was the United States, with 16% 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 $116M 23% of world exports
- 2 Netherlands $104M 20% of world exports
- 3 Japan $79M 15% of world exports
World total: $508M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $93M 16% of world imports
- 2 Germany $78M 14% of world imports
- 3 China $62M 11% of world imports
World total: $570M 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 2910.90 2
Brazil splits HS 2910.90 into 2 NCM codes, Mercosur's 8-digit tariff lines.
All Brazil NCM codes in heading 29.10 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2910.90
What is HS code 291090?
HS code 291090 is a 6-digit subheading in the Harmonized System that covers: Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, n.e.c. in heading no. 2910. This 'basket' HS code encompasses all other epoxides, epoxyalcohols, epoxyphenols, and epoxyethers with a three-membered ring that are not specifically classified under other subheadings of 2910. This category includes a diverse range of specialty chemicals used as intermediates in the synthesis of pharmaceuticals, agrochemicals, fragrances, and advanced materials. Importers and exporters vary widely, from small, specialized fine chemical companies to larger pharmaceutical and polymer manufacturers. These compounds are valued for their unique reactivity, enabling the creation of complex molecules. Trade in this category often involves high-value, low-volume products, reflecting their niche applications and the specialized nature of their production.
What products fall under HS code 291090?
Butylene oxide, styrene oxide, cyclohexene oxide, glycidol, diglycidyl ether, epoxidized soybean oil
What are common misclassifications for HS code 291090?
Frequently confused with other cyclic ethers (2932.99) or even other oxygen-containing heterocyclic compounds if the specific three-membered epoxide ring is not correctly identified.
Which countries are the top exporters of goods under HS code 291090?
In 2025, the top exporters of HS code 291090 in UN Comtrade data were China ($116M, 23% of world exports), the Netherlands ($104M) and Japan ($79M). World exports came to about $508M, 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 291090?
In 2025, the top importers of HS code 291090 in UN Comtrade data were the United States ($93M, 16% of world imports), Germany ($78M) and China ($62M). World imports came to about $570M, 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 291090 structured?
HS code 291090 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (10) identify the heading, and digits 5-6 (90) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 291090?
Brazil splits HS code 291090 into 2 NCM codes: 2910.90.10 (Styrene oxide), 2910.90.90 (Other three-membered ring epoxides). The first 6 digits of each match the HS code.