| 2901.10 | 000 | Saturated |
| 2901.10 | | Unsaturated : |
| 2901.21 | 000 | Ethylene |
| 2901.22 | 000 | Propene (propylene) |
| 2901.23 | 000 | Butene (butylene) and isomers thereof |
| 2901.24 | | Buta-1,3-diene and isoprene |
| 2901.24 | 010 | 1 Buta-1,3-diene |
| 2901.24 | 020 | 2 Isoprene |
| 2901.29 | 000 | Other |
| 2902.11 | 000 | Cyclohexane |
| 2902.19 | | Other |
| 2902.19 | 010 | 1 5-Ethylidene-2-norbornene |
| 2902.19 | 090 | 2 Other |
| 2902.20 | 000 | Benzene |
| 2902.30 | 000 | Toluene |
| 2902.30 | | Xylenes : |
| 2902.41 | 000 | o-Xylene |
| 2902.42 | 000 | m-Xylene |
| 2902.43 | 000 | p-Xylene |
| 2902.44 | 000 | Mixed xylene isomers |
| 2902.50 | 000 | Styrene |
| 2902.60 | 000 | Ethylbenzene |
| 2902.70 | 000 | Cumene |
