| Code | Description | Items |
|---|---|---|
| 660 | Chemical engineering | 14 |
| 661 | Industrial chemicals technology | 5 |
| 662 | Explosives, fuels technology | 1 |
| 663 | Beverage technology | 39 |
| 664 | Food technology | 16 |
| 665 | Industrial oils, fats, waxes, gases | 5 |
| 666 | Ceramic & allied technologies | 5 |
| 667 | Cleaning, color, related technologies | 12 |
| 668 | Technology of other organic products | 15 |
| 669 | Metallurgy | 5 |