 
          Tainui Group Holdings
        
        
          Annual Report
        
        
          2013
        
        
          65
        
        
          
            parent
          
        
        
          Computer
        
        
          NZ Units
        
        
          software
        
        
          Quota
        
        
          ETS
        
        
          Total
        
        
          
            $’000
          
        
        
          
            $’000
          
        
        
          
            $’000
          
        
        
          
            $’000
          
        
        
          
            Year ended 31 March 2012
          
        
        
          Opening balance
        
        
          207
        
        
          14,492
        
        
          93
        
        
          14,792
        
        
          Additions
        
        
          36
        
        
          -
        
        
          -
        
        
          36
        
        
          Amortisation and impairment
        
        
          (146)
        
        
          -
        
        
          (65)
        
        
          (211)
        
        
          
            Closing balance
          
        
        
          
            97
          
        
        
          
            14,492
          
        
        
          
            28
          
        
        
          
            14,617
          
        
        
          
            At 31 March 2012
          
        
        
          Cost
        
        
          428
        
        
          14,492
        
        
          93
        
        
          15,013
        
        
          Accumulated amortisation and impairment
        
        
          (331)
        
        
          -
        
        
          (65)
        
        
          (396)
        
        
          
            Net book value
          
        
        
          
            97
          
        
        
          
            14,492
          
        
        
          
            28
          
        
        
          
            14,617
          
        
        
          
            Year ended 31 March 2013
          
        
        
          Opening balance
        
        
          97
        
        
          14,492
        
        
          28
        
        
          14,617
        
        
          Additions
        
        
          89
        
        
          -
        
        
          -
        
        
          89
        
        
          Disposal
        
        
          (31)
        
        
          -
        
        
          -
        
        
          (31)
        
        
          Amortisation and impairment
        
        
          (68)
        
        
          -
        
        
          (21)
        
        
          (89)
        
        
          
            Closing balance
          
        
        
          
            87
          
        
        
          
            14,492
          
        
        
          
            7
          
        
        
          
            14,586
          
        
        
          
            At 31 March 2013
          
        
        
          Cost
        
        
          414
        
        
          14,492
        
        
          93
        
        
          14,999
        
        
          Accumulated amortisation and impairment
        
        
          (327)
        
        
          -
        
        
          (86)
        
        
          (413)
        
        
          
            Net book value
          
        
        
          
            87
          
        
        
          
            14,492
          
        
        
          
            7
          
        
        
          
            14,586
          
        
        
          The Group is deemed a participant in the New Zealand Emission Trading Scheme (ETS) as it is an owner of
        
        
          fishing quota. NZU’s relate to 3,701 (Parent) and 490 (Group) units that were allocated by the Ministry for the
        
        
          Environment as part of the fisheries allocation for quota owned. The units were valued at $1.90 per unit (2012:
        
        
          $7.50) resulting in an impairment charge to the Group of $23,470 (2012: $73,342) and Parent of $20,725 (2012:
        
        
          $64,768).
        
        
          Quota benefits are expected to be received in perpetuity, therefore the useful life has been assessed as
        
        
          indefinite.