Property, plant and equipment are measured at historical cost less accumulated depreciation and impairment losses. Property, plant and equipment acquired through business combinations are initially shown at fair value (based on replacement cost) and are subsequently carried at the initially determined fair value less accumulated depreciation and impairment losses.

Property, plant and equipment under construction (capital work in progress) are measured at initial cost and depreciation commences from the date the assets are transferred to an appropriate category of property, plant and equipment, i.e. when commissioned and ready for their intended use. Purchased software that is integral to the functionality of the related equipment is capitalised as part of the equipment. The group capitalises general and specific borrowing costs directly attributable to the acquisition, construction or production of a qualifying asset as part of the cost of that asset. Other borrowing costs are expensed in profit or loss.

The present value of the expected cost for the decommissioning of an asset after its use is included in the cost of the respective asset if the recognition criteria for a provision are met. Refer to provisions (note 6.3) for further information about the recognised decommissioning provision and the accounting judgements, estimates and assumptions made.

In circumstances whereby the group enters into an exchange transaction, the group determines whether such an exchange has commercial substance. Property, plant and equipment acquired in an exchange transaction are measured at fair value unless the exchange transaction lacks commercial substance or the fair value of neither the asset received nor the asset given up is reliably measurable. If the acquired item is not measured at fair value, its cost is measured at the carrying amount of the asset given up. Any consideration paid or payable is included in the cost of the asset received. Property, plant and equipment received for no consideration are accounted for at zero value.

As the functional currencies of MTN South Sudan Company Limited and MTN Syria (JSC) are currencies of hyperinflationary economies, property, plant and equipment relating to these subsidiaries are restated by applying the change in the general price indices from the date of acquisition to the current reporting date.

When parts of an item of property, plant and equipment have different useful lives, they are accounted for as separate items (major components) of property, plant and equipment.

Depreciation is calculated on a straight-line basis to write off the cost of the assets to their residual values over their estimated useful lives. Depreciation relating to the property, plant and equipment of MTN South Sudan Company Limited and MTN Syria (JSC) is based on the restated amounts, which have been adjusted for the effects of hyperinflation.

Useful lives and residual values are reviewed on an annual basis and the effect of any changes in estimate is accounted for on a prospective basis.

In determining residual values, the group uses historical sales and management’s best estimate based on market prices of similar items.

Useful lives of property, plant and equipment are based on management estimates and take into account historical experience with similar assets, the expected usage of the asset, physical wear and tear, technical or commercial obsolescence and legal restrictions on the use of the assets.

Land is not depreciated. Assets held under finance leases are depreciated over their expected useful lives on the same basis as owned assets or, where shorter, the expected term of the relevant lease.

Subsequent costs are included in the asset’s carrying amount or recognised as a separate asset, only when it is probable that future economic benefits associated with the item will flow to the group and the cost of the item can be measured reliably. The carrying amount of the replaced part is derecognised. Repairs and maintenance costs are included in profit or loss during the financial period in which they are incurred. The gain or loss arising on the disposal or retirement of an asset is included in profit or loss.

Impairment

An impairment loss is recognised in profit or loss if the carrying amount of an asset or a CGU exceeds its estimated recoverable amount. For the purpose of impairment testing, assets are grouped together into CGUs. The recoverable amount of an asset or CGU is the greater of its value in use and its fair value less costs of disposal. In assessing value in use, the estimated future cash flows are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the asset. Goodwill arising from business combinations is allocated to CGUs or the group of CGUs that are expected to benefit from the synergies of the combination.

Impairment losses recognised in respect of CGUs are allocated first to reduce the carrying amount of any goodwill allocated to the units, and then to reduce the carrying amounts of the other assets in the unit (group of units) on a pro rata basis.

An impairment loss is subsequently reversed only to the extent that the asset or CGU’s carrying amount does not exceed the carrying amount that would have been determined had no impairment loss been recognised. A reversal of an impairment loss is recognised immediately in profit or loss.

The group annually reviews the carrying amounts of its property, plant and equipment in order to determine whether there is any indication of impairment. If any such indication exists, the recoverable amounts of the assets are estimated in order to determine the extent, if any, of the impairment loss.