| 2903.77 | 110 | - Hexachlorodifluoropropanes (CFC-212) |
| 2903.77 | 150 | - Dichlorohexafluoropropanes (CFC-216) |
| 2903.78 | 000 | Other perhalogenated derivatives |
| 2903.79 | | - Other halogenated derivatives of methane, ethane or propane halogenated with fluorine and chlorine |
| 2903.79 | 210 | -- Dichlorofluoromethane (HCFC-21) |
| 2903.79 | 910 | -- Other halogenated derivatives of methane, ethane or propane halogenated with fluorine and bromine |
| 2903.79 | | Halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons : |
| 2903.81 | 000 | 1,2,3,4,5,6-Hexachlorocyclohexane (HCH (ISO)), including lindane (ISO, INN) |
| 2903.82 | | Aldrin (ISO), chlordane (ISO) and heptachlor (ISO) |
| 2903.82 | 100 | 1 Chlordane |
| 2903.82 | 200 | 2 Aldrin and heptachlor |
| 2903.89 | 010 | - Dibromoethyldibromo cyclohexane, tetrabromo cyclooctane and hexabromo cyclododecane |
| 2903.89 | | Halogenated derivatives of aromatic hydrocarbons : |
| 2903.91 | 000 | Chlorobenzene, o-dichlorobenzene and p-dichlorobenzene |
| 2903.92 | 000 | Hexachlorobenzene (ISO) and DDT (ISO) (clofenotane (INN), 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane) |
| 2903.99 | 100 | - Pentabromoethyl benzene and decabromo diphenylethane |
| 29.04 | | Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated. |
| 2904.10 | 000 | Derivatives containing only sulpho groups, their salts and ethyl esters |
| 2904.20 | | Derivatives containing only nitro or only nitroso groups |
| 2904.20 | | Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride |
| 2904.31 | 000 | Perfluorooctane sulphonic acid |
| 2904.35 | 000 | Other salts of perfluorooctane sulphonic acid |
| 2904.36 | 000 | Perfluorooctane sulphonyl fluoride |
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