36.00.Z - Water collection, treatment and supply
                                    
                                            
                                        42.91.Z - Construction of water projects
                                    
                                            
                                        71.20.C - Other technical research and analyses
                                    
                                            
                                        47.79.C - Retail sale of other used goods
                                    
                                            
                                        46.85.B - Wholesale trade of other chemical products
                                    
                                            
                                        46.64.Z - Wholesale of other machinery and equipment
                                    
                                            
                                        46.49.Z - Wholesale of other household goods
                                    
                                            
                                        43.50.Z - Specialised construction activities in civil engineering
                                    
                                            
                                        43.22.Z - Plumbing, heat and air-conditioning installation
                                    
                                            
                                        43.21.Z - Electrical installation
                                    
                                            
                                        42.99.Z - Construction of other civil engineering projects n.e.c.
                                    
                                            
                                        20.13.Z - Manufacture of other inorganic basic chemicals
                                    
                                            
                                        42.21.Z - Construction of utility projects for fluids
                                    
                                            
                                        37.00.Z - Sewerage
                                    
                                            
                                        33.20.Z - Installation of industrial machinery and equipment
                                    
                                            
                                        33.12.Z - Repair and maintenance of machinery
                                    
                                            
                                        33.11.Z - Repair and maintenance of fabricated metal products
                                    
                                            
                                        28.29.Z - Manufacture of other general-purpose machinery n.e.c.
                                    
                                            
                                        27.12.Z - Manufacture of electricity distribution and control apparatus
                                    
                                            
                                        26.51.Z - Manufacture of instruments and appliances for measuring, testing and navigation
                                    
                                            
                                        20.14.Z - Manufacture of other organic basic chemicals