Power utility CLP Holdings has paid HK$14.4 million for 5.23 per cent of listing candidate Datasys Technology Holdings.
CLP said the investment would enable it to gain expertise in optimising power plant operations by adopting information technology solutions.
Datasys, which develops IT solutions for mainland power producers, including the near-monopoly State Power Corp, has used CLP's proceeds to retire debts.
Datasys will make its debut on the Growth Enterprise Market on August 16.
A CLP spokesman said: 'Datasys is an information technology solution provider that operates in the Chinese mainland and has a focus on the energy sector.
'CLP IT Solutions' minor investment in Datasys allows it to gain access to expertise in optimising power plant operations by making use of appropriate IT solutions.'