Impairment of intangible assets

At the end of each reporting period, the Group assesses whether there is any indication that an asset may be impaired.

The assessment includes the consideration of external and internal sources of information. If such an indication exists, an

impairment test is carried out on the asset by comparing the recoverable amount of the asset, being the higher of the asset’s

fair value less costs to sell and value in use, to the asset’s carrying amount. The recoverable amounts of the asset is determined

based on reviewing the status of the research and development program, progress on its patent applications and projected

cash flow calculations. These calculations require the use of assumptions, including estimating timing of cash flows, product

development and availability of resources to exploit the assets.

Any excess of the asset’s carrying amount over its recoverable amount is recognised immediately in profit or loss.

Where it is not possible to estimate the recoverable amount of an individual asset, the Group estimates the recoverable