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Other operating income and expenses (Tables)
 9 Months Ended
Sep. 30, 2020
Other operating income and expenses [Abstract]  
Other operating income
The table below shows the detail of Other operating income and expenses for the nine-month periods ended September 30, 2020, and 2019:

Other Operating income
 
For the nine-month period ended September 30,
 
  
2020
  
2019
 
  
($ in thousands)
 
Grants (Note 16)
  
44,256
   
44,366
 
Income from various services and insurance proceeds
  
31,646
   
29,334
 
Total
  
75,902
   
73,700
 
Other operating expenses
Other Operating expenses
 
For the nine-month period ended September 30,
 
  
2020
  
2019
 
  
($ in thousands)
 
Raw materials and consumables used
  
(4,919
)
  
(7,893
)
Leases and fees
  
(2,388
)
  
(1,501
)
Operation and maintenance
  
(77,133
)
  
(94,573
)
Independent professional services
  
(28,509
)
  
(28,934
)
Supplies
  
(20,433
)
  
(18,929
)
Insurance
  
(27,990
)
  
(18,192
)
Levies and duties
  
(30,523
)
  
(25,830
)
Other expenses
  
(5,740
)
  
(4,730
)
Total
  
(197,635
)
  
(200,582
)