| Harmonised Commodity Description and Coding System (HS) - level 2 - Chapter | 29 | Organic chemicals | 
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 290110 | Saturated acyclic hydrocarbons | 
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 290121 | Ethylene | 
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 290122 | Propene "propylene" | 
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 290123 | Butene "butylene" and isomers thereof | 
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 290124 | Buta-1,3-diene and isoprene | 
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 290129 | Hydrocarbons, acyclic, unsaturated (excl. ethylene, propene "propylene", butene "butylene" and isomers thereof and Buta-1,3-diene and isoprene) |