7. Impairment of intangible assets and property, plant and equipment
At each reporting date, the Group assesses whether there is any indication that its intangible assets, or property, plant and equipment are impaired. If any such indication exists, the Group estimates the recoverable amount of the asset and the impairment loss if any. Goodwill is tested for impairment annually or more frequently if events or changes in circumstances indicate that it might be impaired. If an asset does not generate cash flows that are independent from those of other assets or groups of assets, recoverable amount is determined for the cash-generating unit to which the asset belongs. The recoverable amount of an asset is the higher of its fair value less cost to sell and its value in use. Value in use is the present value of future cash flows from the asset or cash-generating unit discounted at a rate that reflects market interest rates adjusted for risks specific to the asset or cash generating unit that have not been reflected in the estimation of future cash flows. If the recoverable amount of an intangible or tangible asset is less than its carrying value, an impairment loss is recognised immediately in profit or loss and the carrying value of the asset reduced by the amount of the loss. A reversal of an impairment loss on intangible assets (excluding goodwill) or property, plant and equipment is recognised as it arises provided the increased carrying value does not exceed that which it would have been had no impairment loss been recognised. Impairment losses on goodwill are not reversed.
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