HS code · 6-digit subheading

HS Code 2903.77 – Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens; n.e.c. in headings 290371 to 290376, perhalogenated only with fluorine and chlorine

HS code 2903.77 is the 6-digit subheading for halogenated derivatives of acyclic hydrocarbons containing two or more different halogens, n.e.c. in headings 290371 to 290376, perhalogenated only with fluorine and chlorine. It is used for perchlorofluorocarbons, CFC-113 (if not elsewhere), CFC-114 (if not elsewhere), CFC-115 (if not elsewhere) and perhalogenated chlorofluorocarbons.

What HS 2903.77 covers

This HS code serves as a residual category for perhalogenated acyclic hydrocarbons containing only fluorine and chlorine, not specifically listed in the preceding subheadings (2903.71 to 2903.76). This primarily includes various Chlorofluorocarbons (CFCs) and related compounds. CFCs were historically widely used as refrigerants, aerosol propellants, solvents, and blowing agents. However, due to their severe ozone-depleting potential, their production and consumption have been almost entirely phased out globally under the Montreal Protocol. Consequently, international trade in these substances is now extremely limited, primarily for destruction, recycling, or very specific, authorized essential uses where no viable alternatives exist. Importers and exporters are typically specialized chemical waste management companies or those involved in managing legacy equipment and stockpiles.

Covers
  • Perchlorofluorocarbons
  • CFC-113 (if not elsewhere)
  • CFC-114 (if not elsewhere)
  • CFC-115 (if not elsewhere)
  • Perhalogenated chlorofluorocarbons
  • Freon 113
Examples
  • DuPont Freon 113 (legacy)
  • ICI Arcton 114 (legacy)
  • Chemours Perhalogenated CFCs
  • Daikin CFC-115 (legacy)

Codes often confused with 2903.77

Common mistake. Often confused with other CFCs or HCFCs if the specific chemical structure and perhalogenation with only fluorine and chlorine are not confirmed, or with HFCs (2903.39) which lack chlorine.

Top exporters and importers of HS code 290377, 2025

In 2025, the largest exporter of HS code 290377 in UN Comtrade data was China, with 68% of world exports; the largest importer in UN Comtrade data was Russia, with about 21% 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. 1 China $23M
  2. 2 Saudi Arabia $4.3M
  3. 3 Romania $3.4M

World total: $34M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 Russia* ~$8.9M
  2. 2 Romania $7.5M
  3. 3 Taiwan* ~$5.5M

World total: $42M 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 codes for 2903.77 15

Brazil splits HS 2903.77 into 15 NCM codes, Mercosur's 8-digit tariff lines.

  1. 2903.77.1 Perhalogenated derivatives of methane, only with fluorine and chlorineDerivados peralogenados do metano, unicamente com flúor e cloro Group
  2. 2903.77.11 Trichlorofluoromethane (CFC-11)Triclorofluorometano
  3. 2903.77.12 Dichlorodifluoromethane (CFC-12)Diclorodifluorometano
  4. 2903.77.13 Chlorotrifluoromethane (CFC-13)Clorotrifluorometano
  5. 2903.77.2 Perhalogenated derivatives of ethane, only with fluorine and chlorineDerivados peralogenados do etano, unicamente com flúor e cloro Group
  6. 2903.77.21 Trichlorotrifluoroethanes (CFC-113)Triclorotrifluoroetanos
  7. 2903.77.22 Dichlorotetrafluoroethanes and CFC-115Diclorotetrafluoroetanos e cloropentafluoroetano
  8. 2903.77.23 Pentachlorofluoroethane (CFC-111)Pentaclorofluoroetano
  9. 2903.77.24 Tetrachlorodifluoroethanes (CFC-112)Tetraclorodifluoroetanos
  10. 2903.77.3 Perhalogenated derivatives of propane, only with fluorine and chlorineDerivados peralogenados do propano, unicamente com flúor e cloro Group
  11. 2903.77.31 Heptachlorofluoropropanes (CFC-211)Heptaclorofluoropropanos
  12. 2903.77.32 Hexachlorodifluoropropanes (CFC-212)Hexaclorodifluoropropanos
  13. 2903.77.33 Pentachlorotrifluoropropanes (CFC-213)Pentaclorotrifluoropropanos
  14. 2903.77.34 Tetrachlorotetrafluoropropanes (CFC-214)Tetraclorotetrafluoropropanos
  15. 2903.77.35 Trichloropentafluoropropanes (CFC-215)Tricloropentafluoropropanos
  16. 2903.77.36 Dichlorohexafluoropropanes (CFC-216)Dicloroexafluoropropanos
  17. 2903.77.37 Chloroheptafluoropropanes (CFC-217)Cloroeptafluoropropanos
  18. 2903.77.90 Other perhalogenated chlorofluorocarbons (CFCs)Outros

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 2903.77

What is HS code 290377?

HS code 290377 is a 6-digit subheading in the Harmonized System that covers: Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens; n.e.c. in headings 290371 to 290376, perhalogenated only with fluorine and chlorine. This HS code serves as a residual category for perhalogenated acyclic hydrocarbons containing only fluorine and chlorine, not specifically listed in the preceding subheadings (2903.71 to 2903.76). This primarily includes various Chlorofluorocarbons (CFCs) and related compounds. CFCs were historically widely used as refrigerants, aerosol propellants, solvents, and blowing agents. However, due to their severe ozone-depleting potential, their production and consumption have been almost entirely phased out globally under the Montreal Protocol. Consequently, international trade in these substances is now extremely limited, primarily for destruction, recycling, or very specific, authorized essential uses where no viable alternatives exist. Importers and exporters are typically specialized chemical waste management companies or those involved in managing legacy equipment and stockpiles.

What products fall under HS code 290377?

Perchlorofluorocarbons, CFC-113 (if not elsewhere), CFC-114 (if not elsewhere), CFC-115 (if not elsewhere), perhalogenated chlorofluorocarbons, Freon 113

What are common misclassifications for HS code 290377?

Often confused with other CFCs or HCFCs if the specific chemical structure and perhalogenation with only fluorine and chlorine are not confirmed, or with HFCs (2903.39) which lack chlorine.

Which countries are the top exporters of goods under HS code 290377?

In 2025, the top exporters of HS code 290377 in UN Comtrade data were China ($23M, 68% of world exports), Saudi Arabia ($4.3M) and Romania ($3.4M). World exports came to about $34M, 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 290377?

In 2025, the top importers of HS code 290377 in UN Comtrade data were Russia (about $8.9M, 21% of world imports), Romania ($7.5M) and Taiwan (about $5.5M). World imports came to about $42M, 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 290377 structured?

HS code 290377 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 (77) specify the subheading. This code is standardized globally by the World Customs Organization.

What is the Brazil NCM code for HS code 290377?

Brazil splits HS code 290377 into 15 NCM codes: 2903.77.11 (Trichlorofluoromethane (CFC-11)), 2903.77.12 (Dichlorodifluoromethane (CFC-12)), 2903.77.13 (Chlorotrifluoromethane (CFC-13)), 2903.77.21 (Trichlorotrifluoroethanes (CFC-113)), 2903.77.22 (Dichlorotetrafluoroethanes and CFC-115), 2903.77.23 (Pentachlorofluoroethane (CFC-111)), 2903.77.24 (Tetrachlorodifluoroethanes (CFC-112)), 2903.77.31 (Heptachlorofluoropropanes (CFC-211)), and more listed on this page. The first 6 digits of each match the HS code.