|Depreciation of tangible assets||47,637||50,505|
|Impairment of tangible assets||-||162,178|
|Amortisation of intangible assets||3,008||3,700|
|Impairment of intangible assets||-||7,855|
Impairments of tangible and intangible assets are explained in Notes 7 and 8. Impairments of advance payments, certificates of origin and prepaid long-term electricity procurement agreements in the 2013 financial year are recognised under energy procurement (Note 10).