The Hong Kong busineesman raised £3.63million from selling shares to private investors, reducing his holding in the Carling Cup holders from 24.9% to 23.3%.
Yeung made the move after it was announced last month that Blues had debts of £27.27 million.
A statement on the Hong Kong Exchange said 6.43% of Blues' parent company, Birmingham International Holdings, has been sold to people unconnected with the club.
Source: PA
Source: PA