Continued strong growth in China helped RCG Holdings, the Aim-listed developer of fingerprint and facial recognition systems, to boost revenues 31 per cent to HK$1.3bn (£111.6m) in the first half. Pre-tax profits increased from HK$322.5m to HK$380.5m.

However most investors will be watching for the outcome of the probate case in the Hong Kong courts surrounding the 28 per cent of the shares held by Veron International, part of the estate of Nina Wang, the billionaire who died in 2007. Raymond Chu, chief executive, said the closing submissions would be made towards the end of this month, and a judgment is expected by the end of the year.