Carson Yeung's right-hand man Sammy Yu has insisted the Hong Kong businessman is still interested in taking full control of relegated Birmingham.
Yeung is the club's leading individual shareholder after buying an initial 29.9% stake in City last summer.
But he never followed through his plan to completely buy out chairman David Gold and co-owner David Sullivan and came in for heavy criticism from the long-serving duo.
Gold claimed the uncertainty surrounding Yeung's plans cost them the services of manager Steve Bruce in November.
But Yu is adamant Yeung is still keen to buy the club outright, although it may prove difficult to persuade Gold and Sullivan to sell to him after the events of last season.
Yu said: 'Hopefully one day we can take the club over. We thought that if we get involved in the club at least for some time, then we can take over and guarantee that nothing will go wrong.
'But then when an article appeared in a Birmingham match programme saying that Mr Sullivan would not deal with Mr Yeung, it made us feel disappointed because it was not even close to the so-called deadline to buy the club outright.
'We have been very polite but they have been quite unreasonable. We didn't ask for anything nor have we done anything to hurt the club. All we have done is support the club.'
Yeung paid £15million for his stake but relegation from the Barclays Premier League means the shares he purchased are now worth considerably less.
Gold and Sullivan both threatened to quit after receiving abuse from fans during the final home game with Blackburn which sealed City's fate.
But the duo are now focusing on trying to aid manager Alex McLeish in making a quick return to the top flight with Everton midfielder Lee Carsley having already joined the club on a two-year deal.