Income taxThe taxation expense represents the aggregate amount of current and deferred tax recognised in the reporting period. Tax is recognised in profit or loss, except to the extent that it relates to items recognised in other comprehensive income or directly in equity. In this case, tax is recognised in other comprehensive income or directly in equity, respectively.Current tax is recognised on taxable profit for the current and past periods. Current tax is measured at the amounts of tax expected to pay or recover using the tax rates and laws that have been enacted or substantively enacted at the reporting date.Deferred tax is recognised in respect of all timing differences at the reporting date. Unrelieved tax losses and other deferred tax assets are recognised to the extent that it is probable that they will be recovered against the reversal of deferred tax liabilities or other future taxable profits. Deferred tax is measured using the tax rates and laws that have been enacted or substantively enacted by the reporting date that are expected to apply to the reversal of the timing difference.Investments in associatesInvestments in associates accounted for in accordance with the cost model are recorded at cost less any accumulated impairment losses.Investments in associates accounted for in accordance with the fair value model are initially recorded at the transaction price. At each reporting date, the investments are measured at fair value, with changes in fair value recognised in other comprehensive income/profit or loss. Where it is impracticable to measure fair value reliably without undue cost or effort, the cost model will be adopted.Dividends and other distributions received from the investment are recognised as income without regard to whether the distributions are from accumulated profits of the associate arising before or after the date of acquisition.Finance leases and hire purchase contractsAssets held under finance leases and hire purchase contracts are recognised in the statement of financial position as assets and liabilities at the lower of the fair value of the assets and the present value of the minimum lease payments, which is determined at the inception of the lease term. Any initial direct costs of the lease are added to the amount recognised as an asset.Lease payments are apportioned between the finance charges and reduction of the outstanding lease liability using the effective interest method. Finance charges are allocated to each period so as to produce a constant rate of interest on the remaining balance of the liability.Defined contribution plansContributions to defined contribution plans are recognised as an expense in the period in which the related service is provided. Prepaid contributions are recognised as an asset to the extent that the prepayment will lead to a reduction in future payments or a cash refund.When contributions are not expected to be settled wholly within 12 months of the end of the reporting date in which the employees render the related service, the liability is measured on a discounted present value basis. The unwinding of the discount is recognised as a finance cost in profit or loss in the period in which it arises.