HS code · 6-digit subheading
HS Code 2903.83 – Halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons; mirex (ISO)
HS code 2903.83 is the 6-digit subheading for halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons, mirex (ISO). It is used for mirex, perchloropentacyclodecane and dodecachloropentacyclodecane.
What HS 2903.83 covers
This HS code specifically covers mirex (ISO), a halogenated derivative of cyclanic, cyclenic, or cycloterpenic hydrocarbons. Mirex was historically used as an insecticide, particularly effective against fire ants, and also found application as a flame retardant. However, like other highly chlorinated organic compounds, mirex is a Persistent Organic Pollutant (POP) due to its extreme persistence in the environment, bioaccumulation in the food chain, and potential toxicity. Consequently, its production, use, and trade are globally banned under the Stockholm Convention. International trade in mirex is now almost entirely restricted to the environmentally sound disposal of existing stockpiles, often managed by government agencies or specialized hazardous waste management firms. There is no legitimate commercial trade for new production or use.
- Covers
- Mirex
- Perchloropentacyclodecane
- Dodecachloropentacyclodecane
- Examples
- Mirex bait (historical fire ant control)
- Dechlorane (related, but Mirex is specific)
Codes often confused with 2903.83
Common mistake. Can be confused with other cyclanic halogenated pesticides (2903.81, 2903.82) or other flame retardants (e.g., brominated compounds in 2903.94) due to its dual historical use.
Top exporters and importers of HS code 290383, 2025
In 2025, the largest exporter of HS code 290383 in UN Comtrade data was France, with 85% of world exports; the largest importer in UN Comtrade data was Germany, with 52% of world imports. Mexico reports $578M of its heading 2903 imports without product detail (confidential), so it may also belong among the top importers.
Top exporters 2025 · share of world exports
- 1 France $111K 85% of world exports
- 2 India $8K 6.1% of world exports
- 3 Germany $7K 5.7% of world exports
World total: $131K Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $74K 52% of world imports
- 2 Denmark $67K 47% of world imports
- 3 Côte d'Ivoire $332 0.2% of world imports
Mexico reports $578M of its heading 2903 imports without product detail (confidential), so it may also belong among the top importers.
World total: $144K 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 2903.83
Brazil does not split HS 2903.83: its NCM code is 2903.83.00.
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 2903.83
What is HS code 290383?
HS code 290383 is a 6-digit subheading in the Harmonized System that covers: Halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons; mirex (ISO). This HS code specifically covers mirex (ISO), a halogenated derivative of cyclanic, cyclenic, or cycloterpenic hydrocarbons. Mirex was historically used as an insecticide, particularly effective against fire ants, and also found application as a flame retardant. However, like other highly chlorinated organic compounds, mirex is a Persistent Organic Pollutant (POP) due to its extreme persistence in the environment, bioaccumulation in the food chain, and potential toxicity. Consequently, its production, use, and trade are globally banned under the Stockholm Convention. International trade in mirex is now almost entirely restricted to the environmentally sound disposal of existing stockpiles, often managed by government agencies or specialized hazardous waste management firms. There is no legitimate commercial trade for new production or use.
What products fall under HS code 290383?
Mirex, Perchloropentacyclodecane, Dodecachloropentacyclodecane
What are common misclassifications for HS code 290383?
Can be confused with other cyclanic halogenated pesticides (2903.81, 2903.82) or other flame retardants (e.g., brominated compounds in 2903.94) due to its dual historical use.
Which countries are the top exporters of goods under HS code 290383?
In 2025, the top exporters of HS code 290383 in UN Comtrade data were France ($111K, 85% of world exports), India ($8K) and Germany ($7K). World exports came to about $131K, 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 290383?
In 2025, the top importers of HS code 290383 in UN Comtrade data were Germany ($74K, 52% of world imports), Denmark ($67K) and Côte d'Ivoire ($332). World imports came to about $144K, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Mexico reports $578M of its heading 2903 imports without product detail (confidential), so it may also belong among the top importers.
How is HS code 290383 structured?
HS code 290383 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 (83) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 290383?
In Brazil, HS code 290383 is NCM 2903.83.00. The last two digits are 00 because Brazil does not split this HS code further.