(f)Borrowing costs
In accordance with IAS 23 “Borrowing Costs”, since 1 January 2009 the Group recognizes borrowing costs directly attributable to the purchase, construction or production of qualifying assets as an increase in the value of these assets. Qualifying assets are those which require a substantial period of time before they can be used or sold. To the extent that funds are borrowed specifically for the purpose of obtaining a qualifying asset, the amount of borrowing costs eligible for capitalization is determined as the actual borrowing costs incurred, less any investment income on the temporary investment of those funds. Capitalized borrowing costs corresponding to general borrowing are calculated as the weighted average of the qualifying assets without considering specific funds. The amount of borrowing costs capitalized cannot exceed the amount of borrowing costs incurred during that period. The capitalized borrowing costs include adjustments to the carrying amount of financial liabilities arising from the effective portion of hedges entered into by the Group.
The Group begins capitalizing borrowing costs as part of the cost of a qualifying asset when it incurs expenditure for the asset, interest is accrued, and it undertakes activities that are necessary to prepare the asset for its intended use or sale, and ceases capitalizing borrowing costs when all or substantially all the activities necessary to prepare the qualifying asset for its intended use or sale are complete. Nevertheless, capitalization of borrowing costs is suspended when active development is interrupted for extended periods.