COSTS OF UTILISATION
8.1 Calculation of interest
The rate of interest on the Loan for each Interest Period is the percentage rate per annum which is the aggregate of the applicable:
(a) Margin; and
8.2 Payment of interest
The Borrower shall pay accrued interest on the Loan on the last day of each Interest Period (and, if the Interest Period is longer than six Months, on the dates falling at six-monthly intervals after the first day of the Interest Period).
8.3 Default interest
(a) If an Obligor fails to pay any amount payable by it under a Finance Document on its due date, interest shall accrue on the Unpaid Sum from the due date to the date of actual payment (both before and after judgment) at a rate which is, subject to paragraph (b) below, 2 per cent. per annum higher than the rate which would have been payable if the Unpaid Sum had, during the period of non-payment, constituted the Loan in the currency of the Unpaid Sum for successive Interest Periods, each of a duration selected by the Agent (acting reasonably). Any interest accruing under this Clause 8.3 shall be immediately payable by the Obligor on demand by the Agent.
(b) If any Unpaid Sum consists of all or part of the Loan which became due on a day which was not the last day of an Interest Period relating to the Loan:
(i) the first Interest Period for that Unpaid Sum shall have a duration equal to the unexpired portion of the current Interest Period relating to the Loan; and
(ii) the rate of interest applying to the Unpaid Sum during that first Interest Period shall be 2 per cent. per annum higher than the rate which would have applied if the Unpaid Sum had not become due.
(c) Default interest (if unpaid) arising on an Unpaid Sum will be compounded with the Unpaid Sum at the end of each Interest Period applicable to that Unpaid Sum but will remain immediately due and payable.
8.4 Notification of rates of interest
(a) The Agent shall promptly notify the Lenders and the Borrower of the determination of a rate of interest under this Agreement.