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Other operating income and expenses (Tables)
 6 Months Ended
Jun. 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 six-month periods ended June 30, 2020, and 2019:

Other Operating income
 
For the six-month period ended June 30,
 
  
2020
  
2019
 
  
($ in thousands)
 
Grants (Note 16)
  
29,503
   
29,578
 
Income from various services and insurance proceeds
  
27,733
   
15,330
 
Total
  
57,236
   
44,908
 
Other operating expenses
Other Operating expenses
 
For the six-month period ended June 30,
 
  
2020
  
2019
 
  
($ in thousands)
 
Raw materials and consumables used
  
(4,136
)
  
(6,293
)
Leases and fees
  
(1,285
)
  
(945
)
Operation and maintenance
  
(49,716
)
  
(66,580
)
Independent professional services
  
(19,136
)
  
(17,604
)
Supplies
  
(11,382
)
  
(11,326
)
Insurance
  
(17,973
)
  
(12,053
)
Levies and duties
  
(18,828
)
  
(14,715
)
Other expenses
  
(3,636
)
  
(3,007
)
Total
  
(126,092
)
  
(132,523
)