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Prepaid expenses
 12 Months Ended
Dec. 31, 2020
Prepaid expenses  
Prepaid expenses

9.     Prepaid expenses

(a)This caption is made up as follows:

 

 

 

 

 

 

 

    

2020

    

2019

 

 

US$(000)

 

US$(000)

 

 

 

 

 

Prepaid energy services(b)

 

25,692

 

26,582

Prepaid insurance

 

15,794

 

13,568

Deferred costs of works for taxes

 

4,855

 

4,138

Other prepaid expenses

 

4,174

 

2,373

 

 

 

 

 

 

 

50,515

 

46,661

 

 

 

 

 

Classification by maturity:

 

  

 

  

Current portion

 

25,709

 

20,969

Non-current portion

 

24,806

 

25,692

 

 

 

 

 

 

 

50,515

 

46,661

 

(b)Corresponds mainly to payments made in advance to EDEGEL for an original amount of US$31,007,190 corresponding to the right to use the capacity of the hydraulic system of EDEGEL by the subsidiary Empresa de Generación Huanza S.A. This prepayment is being charged to results during the life of the underlying assets (35 years) since January 2015.