HS code · 6-digit subheading
HS Code 2903.22 – Unsaturated chlorinated derivatives of acyclic hydrocarbons; trichloroethylene
HS code 2903.22 is the 6-digit subheading for unsaturated chlorinated derivatives of acyclic hydrocarbons, trichloroethylene. It is used for trichloroethylene, TCE, trichloroethene, ethylene trichloride and tri.
What HS 2903.22 covers
Trichloroethylene (TCE) is an unsaturated chlorinated hydrocarbon that has seen significant shifts in its international trade due to evolving environmental and health regulations. Historically, it was widely used as a powerful industrial solvent for degreasing metal parts and as an extraction solvent. While its use has declined in many regions due to concerns over its toxicity and environmental persistence, it still finds applications as a chemical intermediate in the production of refrigerants (like HFC-134a) and other chemicals, as well as in some specialized solvent applications. Trade involves chemical manufacturers, pharmaceutical companies, and industrial users in sectors where alternatives are not yet viable or where it's used as a feedstock. Key things to know include the strict regulatory oversight, particularly in developed nations, and the ongoing search for safer substitutes. Importers and exporters must comply with hazardous materials transport regulations and often require specific permits.
- Covers
- Trichloroethylene
- TCE
- Trichloroethene
- Ethylene trichloride
- Tri
- Examples
- Dow Chemical Trichloroethylene (for feedstock)
- Westlake Chemical Trichloroethylene
- Sigma-Aldrich Trichloroethylene (lab grade)
Codes often confused with 2903.22
Common mistake. This code can be confused with 290323 (tetrachloroethylene) due to similar names and solvent applications, but TCE has three chlorine atoms while tetrachloroethylene has four.
Top exporters and importers of HS code 290322, 2025
In 2025, the largest exporter of HS code 290322 in UN Comtrade data was China, with 56% of world exports; the largest importer in UN Comtrade data was India, with 18% 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 $26M 56% of world exports
- 2 Japan $9.3M 20% of world exports
- 3 United States $3.4M 7.4% of world exports
World total: $46M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $8.3M 18% of world imports
- 2 United States $7.9M 17% of world imports
- 3 South Korea $3.6M 7.5% of world imports
World total: $47M 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 2903.22
Brazil does not split HS 2903.22: its NCM code is 2903.22.00.
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 2903.22
What is HS code 290322?
HS code 290322 is a 6-digit subheading in the Harmonized System that covers: Unsaturated chlorinated derivatives of acyclic hydrocarbons; trichloroethylene. Trichloroethylene (TCE) is an unsaturated chlorinated hydrocarbon that has seen significant shifts in its international trade due to evolving environmental and health regulations. Historically, it was widely used as a powerful industrial solvent for degreasing metal parts and as an extraction solvent. While its use has declined in many regions due to concerns over its toxicity and environmental persistence, it still finds applications as a chemical intermediate in the production of refrigerants (like HFC-134a) and other chemicals, as well as in some specialized solvent applications. Trade involves chemical manufacturers, pharmaceutical companies, and industrial users in sectors where alternatives are not yet viable or where it's used as a feedstock. Key things to know include the strict regulatory oversight, particularly in developed nations, and the ongoing search for safer substitutes. Importers and exporters must comply with hazardous materials transport regulations and often require specific permits.
What products fall under HS code 290322?
Trichloroethylene, TCE, Trichloroethene, Ethylene trichloride, Tri
What are common misclassifications for HS code 290322?
This code can be confused with 290323 (tetrachloroethylene) due to similar names and solvent applications, but TCE has three chlorine atoms while tetrachloroethylene has four.
Which countries are the top exporters of goods under HS code 290322?
In 2025, the top exporters of HS code 290322 in UN Comtrade data were China ($26M, 56% of world exports), Japan ($9.3M) and the United States ($3.4M). World exports came to about $46M, 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 290322?
In 2025, the top importers of HS code 290322 in UN Comtrade data were India ($8.3M, 18% of world imports), the United States ($7.9M) and South Korea ($3.6M). World imports came to about $47M, 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 290322 structured?
HS code 290322 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 (22) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 290322?
In Brazil, HS code 290322 is NCM 2903.22.00. The last two digits are 00 because Brazil does not split this HS code further.