| (n) | Impairment |
| (i) | Impairment of accounts and other receivables and investments in equity securities carried at cost |
Accounts and other receivables and investments in equity securities carried at cost are reviewed at the end of each reporting period to determine whether there is objective evidence of impairment. Objective evidence of impairment includes observable data that comes to the attention of the Group about one or more of the following loss events:
- significant financial difficulty of the debtor or issuer;
- a breach of contract, such as a default or delinquency in interest or principal payments;
- it becoming probable that the debtor will enter bankruptcy or other financial reorganization; and
- significant changes in the technological, market, economic or legal environment that have an adverse effect on the debtor/ issuer.
The impairment loss for accounts and other receivables is measured as the difference between the asset’s carrying amount and the estimated future cash flows, discounted at the financial asset’s original effective interest rate where the effect of discounting is material, and is recognized as an expense in profit or loss.
The impairment loss for investments in equity securities carried at cost is measured as the difference between the asset’s carrying amount and the estimated future cash flows, discounted at the current market rate of return for a similar financial asset where the effect of discounting is material, and is recognized as an expense in profit or loss.
Impairment losses for accounts and other receivables are reversed through profit or loss if in a subsequent period the amount of the impairment losses decreases. Impairment losses for equity securities carried at cost are not reversed.
| (ii) | Impairment of long-lived assets |
The carrying amounts of the Group’s long-lived assets, including property, plant and equipment, intangible assets with finite useful lives and construction in progress are reviewed periodically to determine whether there is any indication of impairment. These assets are tested for impairment whenever events or changes in circumstances indicate that their recorded carrying amounts may not be recoverable. For goodwill, the impairment testing is performed annually at each year end.
The recoverable amount of an asset or cash-generating unit is the greater of its fair value less costs of disposal and value in use. When an asset does not generate cash flows largely independent of those from other assets, the recoverable amount is determined for the smallest group of assets that generates cash inflows independently (i.e. a cash-generating unit). In determining the value in use, expected future cash flows generated by the assets are discounted to their present value using a pre-tax discount rate that reflects current market assessments of time value of money and the risks specific to the asset for which the estimates of future cash flows have not been adjusted. The goodwill arising from a business combination, for the purpose of impairment testing, is allocated to cash-generating units that are expected to benefit from the synergies of the combination.
An impairment loss is recognized if the carrying amount of an asset or its cash-generating unit exceeds its estimated recoverable amount. Impairment loss is recognized as an expense in profit or loss. Impairment loss recognized in respect of cash-generating units is 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.
The Group assesses at the end of each reporting period whether there is any indication that an impairment loss recognized for an asset in prior years may no longer exist. An impairment loss is reversed if there has been a favorable change in the estimates used to determine the recoverable amount. A subsequent increase in the recoverable amount of an asset, when the circumstances and events that led to the write-down cease to exist, is recognized as an income in profit or loss. The reversal is reduced by the amount that would have been recognized as depreciation and amortization had the write-down not occurred. An impairment loss in respect of goodwill is not reversed. For the years presented, no reversal of impairment loss was recognized in profit or loss.