HS code · 6-digit subheading
HS Code 2903.93 – Halogenated derivatives of aromatic hydrocarbons; pentachlorobenzene (ISO)
HS code 2903.93 is the 6-digit subheading for halogenated derivatives of aromatic hydrocarbons, pentachlorobenzene (ISO). It is used for pentachlorobenzene, peCB and 1,2,3,4,5-Pentachlorobenzene.
What HS 2903.93 covers
This HS code specifically covers pentachlorobenzene (ISO), a halogenated derivative of aromatic hydrocarbons. Pentachlorobenzene (PeCB) is another compound recognized as a Persistent Organic Pollutant (POP) under the Stockholm Convention. Historically, PeCB was used in various applications, including as an intermediate in the production of other chemicals, in dielectric fluids, and as a pesticide. However, due to its persistence, bioaccumulation, and potential for long-range environmental transport, its production, use, and trade are now globally banned or severely restricted. International trade in PeCB is almost exclusively limited to the environmentally sound management and destruction of existing stockpiles, often overseen by government environmental agencies or specialized hazardous waste disposal firms. There is no legitimate commercial trade for new production or use.
- Covers
- Pentachlorobenzene
- PeCB
- 1,2,3,4,5-Pentachlorobenzene
- Examples
PeCB (as a chemical compound, historically used in some industrial formulations).
Codes often confused with 2903.93
Common mistake. Can be confused with other chlorinated benzenes like hexachlorobenzene (2903.92) or dichlorobenzenes (2903.91) due to similar chemical structure, but differs in the number of chlorine atoms.
Top exporters and importers of HS code 290393, 2025
In 2025, the largest exporter of HS code 290393 in UN Comtrade data was the United States, with 95% of world exports; the largest importer in UN Comtrade data was Canada, with 98% 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 United States $642K 95% of world exports
- 2 India $22K 3.3% of world exports
- 3 Germany $5K 0.7% of world exports
World total: $677K Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Canada $643K 98% of world imports
- 2 Indonesia $4K 0.7% of world imports
- 3 Djibouti* ~$2K 0.3% of world imports · partner records ↗
Mexico reports $578M of its heading 2903 imports without product detail (confidential), so it may also belong among the top importers.
World total: $655K 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. 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 2903.93
Brazil does not split HS 2903.93: its NCM code is 2903.93.00.
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 2903.93
What is HS code 290393?
HS code 290393 is a 6-digit subheading in the Harmonized System that covers: Halogenated derivatives of aromatic hydrocarbons; pentachlorobenzene (ISO). This HS code specifically covers pentachlorobenzene (ISO), a halogenated derivative of aromatic hydrocarbons. Pentachlorobenzene (PeCB) is another compound recognized as a Persistent Organic Pollutant (POP) under the Stockholm Convention. Historically, PeCB was used in various applications, including as an intermediate in the production of other chemicals, in dielectric fluids, and as a pesticide. However, due to its persistence, bioaccumulation, and potential for long-range environmental transport, its production, use, and trade are now globally banned or severely restricted. International trade in PeCB is almost exclusively limited to the environmentally sound management and destruction of existing stockpiles, often overseen by government environmental agencies or specialized hazardous waste disposal firms. There is no legitimate commercial trade for new production or use.
What products fall under HS code 290393?
Pentachlorobenzene, PeCB, 1,2,3,4,5-Pentachlorobenzene
What are common misclassifications for HS code 290393?
Can be confused with other chlorinated benzenes like hexachlorobenzene (2903.92) or dichlorobenzenes (2903.91) due to similar chemical structure, but differs in the number of chlorine atoms.
Which countries are the top exporters of goods under HS code 290393?
In 2025, the top exporters of HS code 290393 in UN Comtrade data were the United States ($642K, 95% of world exports), India ($22K) and Germany ($5K). World exports came to about $677K, 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 290393?
In 2025, the top importers of HS code 290393 in UN Comtrade data were Canada ($643K, 98% of world imports), Indonesia ($4K) and Djibouti (about $2K). World imports came to about $655K, 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 290393 structured?
HS code 290393 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 (93) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 290393?
In Brazil, HS code 290393 is NCM 2903.93.00. The last two digits are 00 because Brazil does not split this HS code further.