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Inventories
 12 Months Ended
Dec. 31, 2017
Inventories Tables  
Inventories
  8. Inventories

 

  (a) This caption is made up as follows:

 

    2017     2016  
    S/(000)     S/(000)  
                 
Goods and finished products     27,386       21,427  
Work in progress     105,882       107,882  
Raw materials     74,477       71,248  
Packages and packing     1,975       2,045  
Fuel and carbon     26,986       29,033  
Spare parts and supplies     141,623       117,643  
Inventory in transit     4,093       3,941  
      382,422       353,219  
Less - Provision for inventory obsolescence and net realizable value (b)     (9,402 )     (6,684 )
                 
      373,020       346,535  

 

  (b) Movement in the provision for inventory obsolescence and net realizable value is set forth below:

 

    2017     2016     2015  
    S/(000)     S/(000)     S/(000)  
                         
Opening balance     6,684       14,055       5,146  
Additions     3,183       1,725       9,335  
Recoveries     (465 )     (226 )     (426 )
Disposals     —       (8,870 )     —  
                         
Final balance     9,402       6,684       14,055