He has been engaged in banking finance for over 30 years. Before retirement, he served as deputy general manager of Baosheng Bank (merged with Bank of China (Hong Kong) Limited in 200 1), managing director of BOC International Securities Company and executive director of BOC International Holdings Company. He was a member of the first Legislative Council of the Hong Kong Special Administrative Region from October 1998 to June 2000. He has also held several important public posts, including vice chairman of the Stock Exchange of Hong Kong, director of the Hong Kong Futures Exchange, director of the Hong Kong Securities Clearing Company and Hong Kong affairs adviser.