HS code · 6-digit subheading
HS Code 2903.89 – Halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons; n.e.c. in item no. 2903.8
HS code 2903.89 is the 6-digit subheading for halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons, n.e.c. in item no. 2903.8. It is used for hexachlorocyclopentadiene, dicyclopentadiene derivatives, chlorinated terpenes, brominated cyclanes and tetrachlorocyclopentadiene.
What HS 2903.89 covers
This 'basket' HS code encompasses other halogenated derivatives of cyclanic, cyclenic, or cycloterpenic hydrocarbons not specifically enumerated in subheadings 2903.81, 2903.82, or 2903.83. These compounds are typically specialized chemical intermediates used in the synthesis of pharmaceuticals, agrochemicals, polymers, and other fine chemicals. They are often custom-synthesized or produced in smaller volumes compared to commodity chemicals. Trade in these substances is driven by the demand from niche chemical industries and research sectors. Importers and exporters are usually specialized chemical manufacturers, distributors, and pharmaceutical companies. Due to their diverse applications, the trade patterns can vary, but generally involve countries with advanced chemical manufacturing capabilities and strong R&D sectors.
- Covers
- Hexachlorocyclopentadiene
- Dicyclopentadiene derivatives
- Chlorinated terpenes
- Brominated cyclanes
- Tetrachlorocyclopentadiene
- Chlorinated norbornenes
- Examples
Chlorendic anhydride (derived from hexachlorocyclopentadiene), various specialty chemical intermediates from companies like Sigma-Aldrich or Alfa Aesar.
Codes often confused with 2903.89
Common mistake. Easily confused with the specifically enumerated cyclanic derivatives (2903.81, 2903.82, 2903.83) if not carefully identified, or with aromatic halogenated compounds (2903.9x) due to structural similarities.
Top exporters and importers of HS code 290389, 2025
In 2025, the largest exporter of HS code 290389 in UN Comtrade data was China, with 36% of world exports; the largest importer in UN Comtrade data was Taiwan, with about 15% 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 $33M 36% of world exports
- 2 Japan $20M 22% of world exports
- 3 France $8.5M 9.3% of world exports
World total: $91M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Taiwan* ~$15M 15% of world imports · partner records ↗
- 2 South Korea $12M 13% of world imports
- 3 United States $12M 13% of world imports
World total: $97M 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. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. 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 2903.89 2
Brazil splits HS 2903.89 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 2903.89.10 Hexabromocyclododecanes (HBCD)Hexabromociclododecanos (HBCD)
- 2903.89.90 Other halogenated alicyclic hydrocarbonsOutros
All Brazil NCM codes in heading 29.03 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2903.89
What is HS code 290389?
HS code 290389 is a 6-digit subheading in the Harmonized System that covers: Halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons; n.e.c. in item no. 2903.8. This 'basket' HS code encompasses other halogenated derivatives of cyclanic, cyclenic, or cycloterpenic hydrocarbons not specifically enumerated in subheadings 2903.81, 2903.82, or 2903.83. These compounds are typically specialized chemical intermediates used in the synthesis of pharmaceuticals, agrochemicals, polymers, and other fine chemicals. They are often custom-synthesized or produced in smaller volumes compared to commodity chemicals. Trade in these substances is driven by the demand from niche chemical industries and research sectors. Importers and exporters are usually specialized chemical manufacturers, distributors, and pharmaceutical companies. Due to their diverse applications, the trade patterns can vary, but generally involve countries with advanced chemical manufacturing capabilities and strong R&D sectors.
What products fall under HS code 290389?
Hexachlorocyclopentadiene, Dicyclopentadiene derivatives, Chlorinated terpenes, Brominated cyclanes, Tetrachlorocyclopentadiene, Chlorinated norbornenes
What are common misclassifications for HS code 290389?
Easily confused with the specifically enumerated cyclanic derivatives (2903.81, 2903.82, 2903.83) if not carefully identified, or with aromatic halogenated compounds (2903.9x) due to structural similarities.
Which countries are the top exporters of goods under HS code 290389?
In 2025, the top exporters of HS code 290389 in UN Comtrade data were China ($33M, 36% of world exports), Japan ($20M) and France ($8.5M). World exports came to about $91M, 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 290389?
In 2025, the top importers of HS code 290389 in UN Comtrade data were Taiwan (about $15M, 15% of world imports), South Korea ($12M) and the United States ($12M). World imports came to about $97M, 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 290389 structured?
HS code 290389 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (03) identify the heading, and digits 5-6 (89) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 290389?
Brazil splits HS code 290389 into 2 NCM codes: 2903.89.10 (Hexabromocyclododecanes (HBCD)), 2903.89.90 (Other halogenated alicyclic hydrocarbons). The first 6 digits of each match the HS code.