HS code · 6-digit subheading
HS Code 2931.43 – Non-halogenated organo-phosphorous derivatives; diethyl ethylphosphonate
HS code 2931.43 is the 6-digit subheading for non-halogenated organo-phosphorous derivatives, diethyl ethylphosphonate. It is used for diethyl ethylphosphonate, DEEP, ethylphosphonic acid diethyl ester and diethyl ethylphosphonate (DEEP).
What HS 2931.43 covers
This HS code specifies diethyl ethylphosphonate, another non-halogenated organo-phosphorous derivative. This versatile compound serves as a crucial chemical intermediate in the synthesis of pharmaceuticals, agrochemicals, and as a solvent or flame retardant additive in various industrial applications. It is primarily traded by specialty chemical producers and companies within the pharmaceutical and polymer industries. Its unique properties, including its solvency and reactivity, make it a valuable component in diverse synthetic pathways and material formulations.
- Covers
- Diethyl ethylphosphonate
- DEEP
- Ethylphosphonic acid diethyl ester
- Diethyl ethylphosphonate (DEEP)
- Examples
- TCI Chemicals
- Sigma-Aldrich (now Merck KGaA)
- Alfa Aesar (now Thermo Fisher Scientific)
- Strem Chemicals
Codes often confused with 2931.43
Common mistake. Often confused with other organo-phosphorous esters (e.g., 2931.90 for 'other' organo-phosphorous compounds) or even formulated solvents (Chapter 38) if used as a primary solvent.
Top exporters and importers of HS code 293143, 2025
In 2025, the largest exporter of HS code 293143 in UN Comtrade data was China, with 49% of world exports; the largest importer in UN Comtrade data was Germany, with 46% 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 $136K 49% of world exports
- 2 Spain $99K 35% of world exports
- 3 Germany $44K 16% of world exports
World total: $280K Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $303K 46% of world imports
- 2 France $106K 16% of world imports
- 3 Spain $95K 15% of world imports
World total: $652K 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 2931.43
Brazil does not split HS 2931.43: its NCM code is 2931.43.00.
All Brazil NCM codes in heading 29.31 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2931.43
What is HS code 293143?
HS code 293143 is a 6-digit subheading in the Harmonized System that covers: Non-halogenated organo-phosphorous derivatives; diethyl ethylphosphonate. This HS code specifies diethyl ethylphosphonate, another non-halogenated organo-phosphorous derivative. This versatile compound serves as a crucial chemical intermediate in the synthesis of pharmaceuticals, agrochemicals, and as a solvent or flame retardant additive in various industrial applications. It is primarily traded by specialty chemical producers and companies within the pharmaceutical and polymer industries. Its unique properties, including its solvency and reactivity, make it a valuable component in diverse synthetic pathways and material formulations.
What products fall under HS code 293143?
Diethyl ethylphosphonate, DEEP, Ethylphosphonic acid diethyl ester, Diethyl ethylphosphonate (DEEP)
What are common misclassifications for HS code 293143?
Often confused with other organo-phosphorous esters (e.g., 2931.90 for 'other' organo-phosphorous compounds) or even formulated solvents (Chapter 38) if used as a primary solvent.
Which countries are the top exporters of goods under HS code 293143?
In 2025, the top exporters of HS code 293143 in UN Comtrade data were China ($136K, 49% of world exports), Spain ($99K) and Germany ($44K). World exports came to about $280K, 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 293143?
In 2025, the top importers of HS code 293143 in UN Comtrade data were Germany ($303K, 46% of world imports), France ($106K) and Spain ($95K). World imports came to about $652K, 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 293143 structured?
HS code 293143 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (31) identify the heading, and digits 5-6 (43) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 293143?
In Brazil, HS code 293143 is NCM 2931.43.00. The last two digits are 00 because Brazil does not split this HS code further.