In assessing collective impairment the Company uses historical trends of the probability of default, timing of recoveries and the amount of loss incurred, adjusted for management’s judgment as to whether current economic and credit conditions are such that the actual losses are likely to be greater or less than suggested by historical trends. 

An impairment loss in respect of a financial asset measured at amortized cost is calculated as the difference between its carrying amount, and the present value of the estimated future cash flows discounted at the original effective interest rate and reflected in an allowance account against accounts receivable. Losses are recognized in the income statement. When a subsequent event causes the amount of impairment loss to decrease, the decrease in impairment loss is reversed through profit or loss. 

An impairment loss in respect of an available-for-sale financial asset is calculated by reference to its fair value and is recognized by transferring the cumulative loss that has been recognized in other comprehensive income, and presented in unrealized gains or losses on available-for-sale financial assets in equity, to profit or loss. The cumulative loss that is removed from other comprehensive income and recognized in profit or loss is the difference between the acquisition cost, net of any principal repayment and amortization, and the current fair value, less any impairment loss previously recognized in profit or loss. 

An impairment loss is reversed if the reversal can be related objectively to an event occurring after the impairment loss was recognized. For financial assets measured at amortized cost and available-for-sale financial assets that are debt securities, the reversal is recognized in the income statement. For available-for-sale financial assets that are equity securities, the reversal is recognized directly in other comprehensive income. 

## (ii) Non-financial assets 

The carrying amounts of non-financial assets, other than inventories and deferred tax assets, are reviewed at each reporting date to determine whether there is any indication of impairment. If any such indication exists, the impairment would be recognized in the income statement. 

Impairments are recorded when the recoverable amount of assets is less than their carrying amounts. The recoverable amount is the higher of an asset or cash-generating unit’s fair value less cost to sell or its value in use. 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. For the purpose of impairment testing, assets that cannot be tested individually are grouped together into the smallest group of assets that generates cash inflows from continuing use that are largely independent of the cash inflows of other assets or groups of assets (the cash-generating unit, or “CGU”). For the purposes of goodwill impairment testing, goodwill acquired in a business combination is allocated to the CGU, or the group of CGUs, that is expected to benefit from the synergies of the combination. This allocation is subject to an operating segment ceiling test and reflects the lowest level at which that goodwill is monitored for internal reporting purposes. An impairment loss is recognized if the carrying amount of an asset or its CGU exceeds its estimated recoverable amount. Impairment losses are recognized in profit or loss. Impairment losses, other than those relating to goodwill, are evaluated for potential reversals when events or changes in circumstances warrant such consideration. 

The carrying values of all intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. Additionally, the carrying values of goodwill are tested annually for impairment. 

An impairment loss in respect of goodwill is not reversed. In respect of other assets, impairment losses recognized in prior years are assessed at each reporting date for any indications that the losses have decreased or no longer exist. An impairment loss is reversed if there has been a change in the estimates used to determine the recoverable amount. An impairment loss is reversed only to the extent that the asset’s carrying amount does not exceed the carrying amount that would have been determined, net of depreciation or amortization, if no impairment loss had been recognized. 

Goodwill that forms part of the carrying amount of an equity accounted investment is not recognized separately and therefore is not tested for impairment separately. Instead, the entire amount of the equity accounted investment is tested for impairment as a single asset when there is objective evidence that the equity accounted investment may be impaired. 

## (i) Employee benefits 

## (i) Defined contribution plans 

A defined contribution plan is a post-employment benefit plan under which an entity pays fixed contributions into a separate entity and will have no legal or constructive obligation to pay further amounts. Obligations for contributions to defined contribution plans are recognized as an employee benefit expense in the income statement in the period that the service is rendered by the employee. 

