| 2923.10.00 | - Choline and its salts | |
| 2923.20.00 | - Lecithins and other phosphoaminolipids | |
| 2923.30.00 | - Tetraethylammonium perfluorooctane sulphonate | |
| 2923.40.00 | - Didecyldimethylammonium perfluorooctane sulphonate | |
| 2923.90.00 | - Other |
| 2923.10.00 | - Choline and its salts | |
| 2923.20.00 | - Lecithins and other phosphoaminolipids | |
| 2923.30.00 | - Tetraethylammonium perfluorooctane sulphonate | |
| 2923.40.00 | - Didecyldimethylammonium perfluorooctane sulphonate | |
| 2923.90.00 | - Other |