Yeung, 61, is due to appear in court in August to face charges on five counts of money laundering, covering a six-year period from 2001.

Birmingham International Holdings Ltd, in a statement released to the Hong Kong Stock Exchange, said: "The board notes the arrest and bail of Mr Yeung Ka Sing, Carson in connection with the alleged dealing known or believed to represent proceeds of an indictable offence and understand that the offences are in no way related to the company.

"At the request of the company, trading in the shares was suspended in effect from 9.00am on June 30, 2011.

"The shares will remain suspended pending a further announcement regarding the incident and the company's financial position.

"The board of directors of Birmingham International Holdings Ltd notes the arrest of Mr Yeung Ka Sing, Carson on June 29, 2011 in connection with alleged dealings with property known or believed to represent proceeds of an indictable offence.

"The company wishes to announce that so as far as it is aware, having taken steps to ascertain the same, the alleged offences against Mr Yeung do not relate to the company nor Birmingham City Football Club."

New Blues manager Chris Hughton maintains preparations for the new season in the npower Championship have not been affected.

The club also today confirmed the signing of former Wigan and Burnley defender Steven Caldwell on a free transfer.