Product classification
HS code for TRIS phosphate: 2919.10
Esters, phosphoric, and their salts, including lactophosphates, their halogenated, sulphonated, nitrated or nitrosated derivatives, tris(2,3-dibromopropyl) phosphate.
Classification of TRIS phosphate under HS 2919.10
Tris(2,3-dibromopropyl) phosphate is classified under HS code 2919.10. This classification follows GIR 1 and 6, utilizing the specific nomenclature found in Chapter 29 for organic chemicals. Heading 2919 covers phosphoric esters and their salts, including lactophosphates, and their halogenated, sulphonated, nitrated, or nitrosated derivatives. Subheading 2919.10 is a specific category created to monitor and control the trade of tris(2,3-dibromopropyl) phosphate due to its historical use as a flame retardant and its subsequent environmental and health regulations under international conventions like the Rotterdam Convention. The classification is based on the chemical's identity as an ester of phosphoric acid where the hydrogen atoms have been replaced by 2,3-dibromopropyl groups. As a halogenated derivative of a phosphoric ester, it fits perfectly within the scope of 2919, and the specific subheading 2919.10 takes precedence over the residual "other" category (2919.90). This code is used for the pure chemical substance or defined chemical mixtures where this specific phosphate is the primary component.
- Covers
- Tris(2,3-dibromopropyl) phosphate (pure)
- Flame retardants consisting of this specific chemical
- Halogenated phosphoric esters of this isomer
- Standardized solutions of Tris(2,3-dibromopropyl) phosphate
- Chemical samples for environmental testing
- Also under 2919.10
- Chemtura (historically produced)
- ICL Group (specialty chemicals)
- Albemarle (flame retardants)
Codes often confused with 2919.10
Common mistake. Tris(2,3-dibromopropyl) phosphate is often misclassified under HS code 2919.90, which is the general category for other phosphoric esters. Because 2919.10 is a specific named provision, using the "other" category is a violation of GIR 6. It is also sometimes confused with other flame retardants like Tris(2-chloroethyl) phosphate (TCEP), which belongs in 2919.90. Furthermore, if the product is a prepared mixture of various flame retardants, it might be incorrectly placed in 3824.99, though the pure chemical must remain in Chapter 29.
Top exporters and importers of HS 291910 (the code used for TRIS phosphate), 2025
In 2025, the largest exporter of HS 291910 (the code used for TRIS phosphate) in UN Comtrade data was the Netherlands, with 63% of world exports; the largest importer in UN Comtrade data was Canada, with 39% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 291910, not only TRIS phosphate.
Top exporters 2025 · share of world exports
- 1 Netherlands $11M 63% of world exports
- 2 United States $3.3M 19% of world exports
- 3 Saudi Arabia $2.9M 16% of world exports
World total: $18M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Canada $2.7M 39% of world imports
- 2 India $1.3M 19% of world imports
- 3 Kuwait $488K 7.1% of world imports
World total: $6.9M 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 TRIS phosphate
Brazil classifies TRIS phosphate under NCM 2919.10.00: HS 2919.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about TRIS phosphate
What is the HS code for TRIS phosphate?
The HS code for TRIS phosphate is 291910 (Esters; phosphoric, and their salts, including lactophosphates, their halogenated, sulphonated, nitrated or nitrosated derivatives; tris(2,3-dibromopropyl) phosphate). The specific HS code for Tris(2,3-dibromopropyl) phosphate is 2919.10. This is a globally recognized code for this specific halogenated ester.
How do I classify TRIS phosphate for customs?
TRIS phosphate is classified under HS code 291910 — Esters; phosphoric, and their salts, including lactophosphates, their halogenated, sulphonated, nitrated or nitrosated derivatives; tris(2,3-dibromopropyl) phosphate. This is a 6-digit subheading level code.
Why does this product have its own HS subheading?
It has a specific subheading (2919.10) primarily for environmental and safety monitoring, as it is a regulated substance under several international environmental treaties.
Which countries are the top exporters of TRIS phosphate (HS 291910)?
In 2025, the top exporters of HS 291910 (the code used for TRIS phosphate) in UN Comtrade data were the Netherlands ($11M, 63% of world exports), the United States ($3.3M) and Saudi Arabia ($2.9M). World exports came to about $18M, 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 TRIS phosphate (HS 291910)?
In 2025, the top importers of HS 291910 (the code used for TRIS phosphate) in UN Comtrade data were Canada ($2.7M, 39% of world imports), India ($1.3M) and Kuwait ($488K). World imports came to about $6.9M, 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.
Is the HS code for TRIS phosphate the same in all countries?
The base HS code 291910 for TRIS phosphate is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for TRIS phosphate in Brazil?
In Brazil, TRIS phosphate (HS 291910) is classified under NCM 2919.10.00.