Consolidated cash flow statement
| 
       (CHF 1,000) 1)  | 
    
       
  | 
    
       Notes  | 
    
       
  | 
    
       First half 2020  | 
    
       
  | 
    
       First half 2019  | 
  
| 
       Consolidated result  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –27,514  | 
    
       
  | 
    
       143,398  | 
  
| 
       Finance result  | 
    
       
  | 
    
       (4)  | 
    
       
  | 
    
       12,876  | 
    
       
  | 
    
       3,731  | 
  
| 
       Share of profit or loss of associates  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       1,559  | 
    
       
  | 
    
       1,784  | 
  
| 
       Income tax expense  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –5,297  | 
    
       
  | 
    
       38,795  | 
  
| 
       Depreciation / amortisation of  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Property, plant and equipment (after recognition of government subsidies and grants)  | 
    
       
  | 
    
       (5)  | 
    
       
  | 
    
       109,387  | 
    
       
  | 
    
       105,403  | 
  
| 
       Right-of-use assets  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       4,379  | 
    
       
  | 
    
       1,915  | 
  
| 
       Investment property  | 
    
       
  | 
    
       (6)  | 
    
       
  | 
    
       466  | 
    
       
  | 
    
       120  | 
  
| 
       Intangible assets  | 
    
       
  | 
    
       (7)  | 
    
       
  | 
    
       9,036  | 
    
       
  | 
    
       8,511  | 
  
| 
       Gains (–) / losses (+) on disposal of property, plant and equipment (net)  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       471  | 
    
       
  | 
    
       928  | 
  
| 
       Share-based payments  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       403  | 
    
       
  | 
    
       521  | 
  
| 
       Increase (–) / decrease (+) in inventories, trade receivables and other receivables and prepaid expenses  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       26,220  | 
    
       
  | 
    
       –20,053  | 
  
| 
       Increase (+) / decrease (–) in current liabilities, excluding current financial liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –2,541  | 
    
       
  | 
    
       –14,219  | 
  
| 
       Increase (+) / decrease (–) in employee benefit obligations  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       3,503  | 
    
       
  | 
    
       1,456  | 
  
| 
       Increase (+) / decrease (–) in provision for formal expropriations plus sound insulation and resident protection  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –4,042  | 
    
       
  | 
    
       –8,480  | 
  
| 
       Income tax paid  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –131  | 
    
       
  | 
    
       –63,027  | 
  
| 
       Cash flow from operating activities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       128,775  | 
    
       
  | 
    
       200,783  | 
  
| 
       of which related to aircraft noise (Airport of Zurich Noise Fund)  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –250  | 
    
       
  | 
    
       –3,342  | 
  
| 
       Income from noise charges  | 
    
       
  | 
    
       (12)  | 
    
       
  | 
    
       4,142  | 
    
       
  | 
    
       5,287  | 
  
| 
       Expenses for formal expropriations plus sound insulation and resident protection  | 
    
       
  | 
    
       (12)  | 
    
       
  | 
    
       –4,392  | 
    
       
  | 
    
       –8,629  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Investments in property, plant and equipment (projects in progress)  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –120,249  | 
    
       
  | 
    
       –93,352  | 
  
| 
       Investments in investments property (incl. advance payments)  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –70,828  | 
    
       
  | 
    
       –40,726  | 
  
| 
       Investments in airport operator projects  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –10,599  | 
    
       
  | 
    
       –65,208  | 
  
| 
       Investments in other intangible assets  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –1,497  | 
    
       
  | 
    
       –847  | 
  
| 
       Investments in financial assets  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –23,130  | 
    
       
  | 
    
       –16,235  | 
  
| 
       Investments in fixed-term deposits due > 90 days  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –200,000  | 
    
       
  | 
    
       –6,567  | 
  
| 
       Repayment of financial assets  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       17,932  | 
    
       
  | 
    
       3,360  | 
  
| 
       Repayment of fixed-term deposits due > 90 days  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       37,500  | 
    
       
  | 
    
       76,667  | 
  
| 
       Proceeds from disposal of property, plant and equipment  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       13  | 
    
       
  | 
    
       17  | 
  
| 
       Interest received  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       424  | 
    
       
  | 
    
       3,424  | 
  
| 
       Cash flow from investing activities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –370,434  | 
    
       
  | 
    
       –139,467  | 
  
| 
       of which related to aircraft noise (Airport of Zurich Noise Fund)  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –5,714  | 
    
       
  | 
    
       –12,790  | 
  
| 
       Investments in financial assets and fixed-term deposits Airport of Zurich Noise Fund  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –22,864  | 
    
       
  | 
    
       –16,150  | 
  
| 
       Repayment of current financial assets and fixed-term deposits Airport of Zurich Noise Fund  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       17,150  | 
    
       
  | 
    
       3,360  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Issue of new debentures  | 
    
       
  | 
    
       (10)  | 
    
       
  | 
    
       700,000  | 
    
       
  | 
    
       0  | 
  
| 
       Transaction cost issue of new debentures  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –1,263  | 
    
       
  | 
    
       0  | 
  
| 
       Repayment of other financial liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –121,622  | 
    
       
  | 
    
       –39,639  | 
  
| 
       Increase of other financial liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       172,699  | 
    
       
  | 
    
       90,825  | 
  
| 
       Repayment of lease liabilities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –3,484  | 
    
       
  | 
    
       –900  | 
  
| 
       Payment of dividend for the 2019 / 2018 financial years  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       0  | 
    
       
  | 
    
       –211,825  | 
  
| 
       Purchase of treasury shares  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –1,040  | 
    
       
  | 
    
       –1,173  | 
  
| 
       Interest paid  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –9,148  | 
    
       
  | 
    
       –10,130  | 
  
| 
       Cash flow from financing activities  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       736,142  | 
    
       
  | 
    
       –172,842  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Increase (+) / decrease (–) in cash and cash equivalents  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       494,483  | 
    
       
  | 
    
       –111,526  | 
  
| 
       Balance at 1 January  | 
    
       
  | 
    
       (9)  | 
    
       
  | 
    
       132,428  | 
    
       
  | 
    
       395,872  | 
  
| 
       Effect of foreign exchange differences on cash and cash equivalents held  | 
    
       
  | 
    
       
  | 
    
       
  | 
    
       –4,574  | 
    
       
  | 
    
       –4,217  | 
  
| 
       Balance as at reporting date  | 
    
       
  | 
    
       (9)  | 
    
       
  | 
    
       622,337  | 
    
       
  | 
    
       280,129  | 
  
| 
       of which included in Airport of Zurich Noise Fund  | 
    
       
  | 
    
       (9)  | 
    
       
  | 
    
       12,512  | 
    
       
  | 
    
       13,516  | 
  
1) All financial data presented here are unaudited.