In the application of the company’s accounting policies, the directors are required to make judgements,
estimates and assumptions about the carrying amount of assets and liabilities that are not readily apparent
from other sources. The estimates and associated assumptions are based on historical experience and other
factors that are considered to be relevant. Actual results may differ from these estimates.
The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting
estimates are recognised in the period in which the estimate is revised where the revision affects only that
period, or in the period of the revision and future periods where the revision affects both current and future
periods.