| Classification of Products (CZ-CPA_2025) - level 4 - Class | 
                    5310 | 
                    Postal services under universal service obligation | 
                  
                
                  
                    | Classification of Products (CZ-CPA_2025) - level 6 - Sub-category | 
                    531001 | 
                    Postal services under universal service obligation related to newspapers and periodicals | 
                  
                
                  
                    | Classification of Products (CZ-CPA_2025) - level 6 - Sub-category | 
                    531002 | 
                    Postal services under universal service obligation related to letters | 
                  
                
                  
                    | Classification of Products (CZ-CPA_2025) - level 6 - Sub-category | 
                    531003 | 
                    Postal services under universal service obligation related to parcels | 
                  
                
                  
                    | Classification of Products (CZ-CPA_2025) - level 6 - Sub-category | 
                    531004 | 
                    Post office counter services | 
                  
                
                  
                    | Classification of Products (CZ-CPA_2025) - level 6 - Sub-category | 
                    531009 | 
                    Postal services under universal service obligation n.e.c. |