| 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) |