HS code · 6-digit subheading

HS Code 3824.83 – Chemical products, mixtures and preparations; containing goods specified in Subheading Note 3 to this Chapter; containing tris(2,3-dibromopropyl) phosphate

HS code 3824.83 is the 6-digit subheading for chemical products, mixtures and preparations, containing goods specified in Subheading Note 3 to this Chapter, containing tris(2,3-dibromopropyl) phosphate. It is used for mixtures containing Tris (for disposal), analytical standards of Tris, specialized flame retardant formulations (historical, for disposal) and contaminated industrial waste (Tris-containing).

What HS 3824.83 covers

This HS code identifies chemical products, mixtures, and preparations containing tris(2,3-dibromopropyl) phosphate, as specified in Subheading Note 3 to Chapter 38. Tris(2,3-dibromopropyl) phosphate, commonly known as 'Tris,' is a flame retardant that was widely used but is now largely banned or severely restricted globally due to its carcinogenic properties and environmental concerns. Consequently, international trade in these mixtures is minimal and primarily involves materials destined for environmentally sound disposal, remediation efforts, or highly controlled analytical and research applications. Importers and exporters are typically specialized hazardous waste management firms, environmental consultants, and analytical laboratories operating under strict regulatory frameworks in countries committed to chemical safety, such as the USA and EU nations.

Covers
  • Mixtures containing Tris (for disposal)
  • Analytical standards of Tris
  • Specialized flame retardant formulations (historical, for disposal)
  • Contaminated industrial waste (Tris-containing)
Examples
  • Suez Environmental Services (hazardous waste)
  • Waste Management (chemical disposal)
  • specialized chemical suppliers for analytical standards

Codes often confused with 3824.83

Common mistake. This code covers mixtures, not the pure chemical (which would be in Chapter 29, e.g., 2919.00 for phosphoric esters), nor articles *containing* the flame retardant. The distinction between pure substance and mixture is crucial.

Top exporters and importers of HS code 382483, 2025

In 2025, the largest exporter of HS code 382483 in UN Comtrade data was the United States, with 95% of world exports; the largest importer in UN Comtrade data was Egypt, with 94% of world imports. Israel reports $970M of its heading 3824 exports without product detail (confidential), so it may also belong among the top exporters. The United Arab Emirates did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 100% of its exports here ($164K, CEPII BACI), so it may also belong among the top exporters.

Top exporters 2025 · share of world exports

  1. 1 United States $1.8M
  2. 2 El Salvador $37K
  3. 3 France $16K

Israel reports $970M of its heading 3824 exports without product detail (confidential), so it may also belong among the top exporters.

The United Arab Emirates did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 100% of its exports here ($164K, CEPII BACI), so it may also belong among the top exporters.

World total: $1.9M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 Egypt $33M
  2. 2 Saudi Arabia $529K
  3. 3 Taiwan* ~$471K

World total: $35M 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. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. 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 3824.83

Brazil does not split HS 3824.83: its NCM code is 3824.83.00.

  1. 3824.83.00 Mixtures with tris(2,3-dibromopropyl) phosphateQue contenham fosfato de tris(2,3-dibromopropila)

All Brazil NCM codes in heading 38.24 →

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.

Questions about HS 3824.83

What is HS code 382483?

HS code 382483 is a 6-digit subheading in the Harmonized System that covers: Chemical products, mixtures and preparations; containing goods specified in Subheading Note 3 to this Chapter; containing tris(2,3-dibromopropyl) phosphate. This HS code identifies chemical products, mixtures, and preparations containing tris(2,3-dibromopropyl) phosphate, as specified in Subheading Note 3 to Chapter 38. Tris(2,3-dibromopropyl) phosphate, commonly known as 'Tris,' is a flame retardant that was widely used but is now largely banned or severely restricted globally due to its carcinogenic properties and environmental concerns. Consequently, international trade in these mixtures is minimal and primarily involves materials destined for environmentally sound disposal, remediation efforts, or highly controlled analytical and research applications. Importers and exporters are typically specialized hazardous waste management firms, environmental consultants, and analytical laboratories operating under strict regulatory frameworks in countries committed to chemical safety, such as the USA and EU nations.

What products fall under HS code 382483?

Mixtures containing Tris (for disposal), analytical standards of Tris, specialized flame retardant formulations (historical, for disposal), contaminated industrial waste (Tris-containing)

What are common misclassifications for HS code 382483?

This code covers mixtures, not the pure chemical (which would be in Chapter 29, e.g., 2919.00 for phosphoric esters), nor articles *containing* the flame retardant. The distinction between pure substance and mixture is crucial.

Which countries are the top exporters of goods under HS code 382483?

In 2025, the top exporters of HS code 382483 in UN Comtrade data were the United States ($1.8M, 95% of world exports), El Salvador ($37K) and France ($16K). World exports came to about $1.9M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Israel reports $970M of its heading 3824 exports without product detail (confidential), so it may also belong among the top exporters. The United Arab Emirates did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 100% of its exports here ($164K, CEPII BACI), so it may also belong among the top exporters.

Which countries are the top importers of goods under HS code 382483?

In 2025, the top importers of HS code 382483 in UN Comtrade data were Egypt ($33M, 94% of world imports), Saudi Arabia ($529K) and Taiwan (about $471K). World imports came to about $35M, 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 382483 structured?

HS code 382483 is a 6-digit subheading under the Harmonized System. The first 2 digits (38) identify the chapter, digits 3-4 (24) identify the heading, and digits 5-6 (83) specify the subheading. This code is standardized globally by the World Customs Organization.

What is the Brazil NCM code for HS code 382483?

In Brazil, HS code 382483 is NCM 3824.83.00. The last two digits are 00 because Brazil does not split this HS code further.