Recognition and measurement

• Interest income and expense: are accrued on a time basis, by reference to the principal outstanding and at the applicable effective interest rates. Interest costs directly attributable to the acquisition or construction of qualifying assets are added to the cost of those assets. The weighted average capitalisation rate on funds borrowed for finance costs capitalised is 3.04%.
• Finance lease expense: Assets held under finance lease are initially recognised as assets of the Group at their fair value at the inception of the lease or, if lower, at the present value of the minimum lease payments. The corresponding liability to the lessor is included in the statement of financial position as a finance lease obligation. Lease payments are apportioned between finance expenses and reduction of the lease obligation so as to achieve a constant rate of interest on the remaining balance of the liability.