| 20.1 | MANUFACTURE OF BASIC CHEMICALS, FERTILISERS AND NITROGEN COMPOUNDS, PLASTICS AND SYNTHETIC RUBBER IN PRIMARY FORMS |
| Class | The name of the class |
| 20.11 | Manufacture of industrial gases |
| 20.12 | Manufacture of dyes and pigments |
| 20.13 | Manufacture of other inorganic basic chemicals |
| 20.14 | Manufacture of other organic basic chemicals |
| 20.15 | Manufacture of fertilisers and nitrogen compounds |
| 20.16 | Manufacture of plastics in primary forms |
| 20.17 | Manufacture of synthetic rubber in primary forms |
| 20.2 | MANUFACTURE OF PESTICIDES AND OTHER AGROCHEMICAL PRODUCTS |
| Class | The name of the class |
| 20.20 | Manufacture of pesticides and other agrochemical products |
| 20.3 | MANUFACTURE OF PAINTS, VARNISHES AND SIMILAR COATINGS, PRINTING INK AND MASTICS |
| Class | The name of the class |
| 20.30 | Manufacture of paints, varnishes and similar coatings, printing ink and mastics |
| 20.4 | MANUFACTURE OF SOAP AND DETERGENTS, CLEANING AND POLISHING PREPARATIONS, PERFUMES AND TOILET PREPARATIONS |
| Class | The name of the class |
| 20.41 | Manufacture of soap and detergents, cleaning and polishing preparations |
| 20.42 | Manufacture of perfumes and toilet preparations |
| 20.5 | MANUFACTURE OF OTHER CHEMICAL PRODUCTS |
| Class | The name of the class |
| 20.51 | Manufacture of explosives |
| 20.52 | Manufacture of glues |
| 20.53 | Manufacture of essential oils |
| 20.59 | Manufacture of other chemical products n.e.c. |
| 20.6 | MANUFACTURE OF MAN-MADE FIBRES |
| Class | The name of the class |
| 20.60 | Manufacture of man-made fibres |