All other repairs and maintenance
are recognised as an expense in the Consolidated Income
Statement of the period in which they are incurred. Cost of an
item of property, plant and equipment initially recognised comprise
the initial estimate of costs of dismantling and removing the item
and restoring the site on which it is located at the end of the useful
life of the item on a present value basis. A provision presenting the
asset retirement obligation is recognised in the same amount at
the same date in accordance with IAS 37 “Provisions, Contingent
Liabilities and Contingent Assets”.