HS code · 6-digit subheading
HS Code 2931.52 – Halogenated organo-phosphorous derivatives; propylphosphonic dichloride
HS code 2931.52 is the 6-digit subheading for halogenated organo-phosphorous derivatives, propylphosphonic dichloride. It is used for propylphosphonic dichloride, specialty flame retardant intermediate, polymer additive precursor, plasticizer component and chemical synthesis reagent.
What HS 2931.52 covers
HS code 293152 designates propylphosphonic dichloride, another important halogenated organo-phosphorous derivative. Similar to its methyl counterpart, this compound serves as a versatile chemical intermediate in the synthesis of various industrial products. Its applications include the production of specialized flame retardants, plasticizers, and other polymer additives, as well as certain agrochemicals. Due to its reactivity and potential for dual-use applications, its trade is often subject to scrutiny and regulatory oversight, though generally less stringent than MPDC. Importers are typically chemical manufacturers specializing in polymer additives or agrochemicals, while exporters are specialized chemical synthesis companies. Careful handling, storage, and adherence to safety regulations are paramount in its trade.
- Covers
- Propylphosphonic dichloride
- Specialty flame retardant intermediate
- Polymer additive precursor
- Plasticizer component
- Chemical synthesis reagent
- Examples
- Sigma-Aldrich (research chemicals)
- TCI Chemicals
- custom synthesis companies
- specialty chemical divisions of larger firms
Codes often confused with 2931.52
Common mistake. This compound is often misclassified as methylphosphonic dichloride (2931.51) if the specific alkyl chain is not identified, or as a general 'other' halogenated organo-phosphorous derivative (2931.59).
Top exporters and importers of HS code 293152, 2025
In 2025, the largest exporter of HS code 293152 in UN Comtrade data was Sweden, with 97% of world exports; the largest importer in UN Comtrade data was Spain, with 98% of world imports. Austria reports $783M of its chapter 29 exports without product detail (confidential), so it may also belong among the top exporters.
Top exporters 2025 · share of world exports
- 1 Sweden $2K 97% of world exports
- 2 China $44 2.8% of world exports
Austria reports $783M of its chapter 29 exports without product detail (confidential), so it may also belong among the top exporters.
World total: $2K Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Spain $7.8M 98% of world imports
- 2 Switzerland $68K 0.9% of world imports
- 3 United States $46K 0.6% of world imports
World total: $8.0M 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 2931.52
Brazil does not split HS 2931.52: its NCM code is 2931.52.00.
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 2931.52
What is HS code 293152?
HS code 293152 is a 6-digit subheading in the Harmonized System that covers: Halogenated organo-phosphorous derivatives; propylphosphonic dichloride. HS code 293152 designates propylphosphonic dichloride, another important halogenated organo-phosphorous derivative. Similar to its methyl counterpart, this compound serves as a versatile chemical intermediate in the synthesis of various industrial products. Its applications include the production of specialized flame retardants, plasticizers, and other polymer additives, as well as certain agrochemicals. Due to its reactivity and potential for dual-use applications, its trade is often subject to scrutiny and regulatory oversight, though generally less stringent than MPDC. Importers are typically chemical manufacturers specializing in polymer additives or agrochemicals, while exporters are specialized chemical synthesis companies. Careful handling, storage, and adherence to safety regulations are paramount in its trade.
What products fall under HS code 293152?
Propylphosphonic dichloride, specialty flame retardant intermediate, polymer additive precursor, plasticizer component, chemical synthesis reagent
What are common misclassifications for HS code 293152?
This compound is often misclassified as methylphosphonic dichloride (2931.51) if the specific alkyl chain is not identified, or as a general 'other' halogenated organo-phosphorous derivative (2931.59).
Which countries are the top exporters of goods under HS code 293152?
In 2025, the top exporters of HS code 293152 in UN Comtrade data were Sweden ($2K, 97% of world exports) and China ($44). World exports came to about $2K, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Austria reports $783M of its chapter 29 exports without product detail (confidential), so it may also belong among the top exporters.
Which countries are the top importers of goods under HS code 293152?
In 2025, the top importers of HS code 293152 in UN Comtrade data were Spain ($7.8M, 98% of world imports), Switzerland ($68K) and the United States ($46K). World imports came to about $8.0M, 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 293152 structured?
HS code 293152 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 (52) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 293152?
In Brazil, HS code 293152 is NCM 2931.52.00. The last two digits are 00 because Brazil does not split this HS code further.