(y)Leases
The determination of whether an arrangement is, or contains, a lease is based on the substance of the arrangement and requires an assessment of whether the fulfillment of the arrangement is dependent on the use of a specific asset or assets and whether the arrangement conveys the right to use the asset.
Leases of property, plant and equipment other assets where the Group holds substantially all the risks and rewards of ownership are classified as finance leases. Finance lease assets are capitalized at the commencement of the lease term at the lower of the present value of the minimum lease payments or the fair value of the lease asset. The obligations relating to finance leases, net of finance charges in respect of future periods, are recognized as liabilities. The interest element of the finance cost is charged to the income statement over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period. The property, plant and equipment acquired under finance leases is depreciated over the shorter of the useful life of the asset and the lease term.
Leases where a significant portion of the risks and rewards are held by the lessor are classified as operating leases. Rentals are charged to the income statement on a straight line basis over the period of the lease.
Leasehold improvements are depreciated at the lesser of its useful life or contract term.