KENNETH Koo, deputy head of listing with the Stock Exchange of Hong Kong, will be leaving the position in February to join Goldman Sachs Asia's corporate finance department. Mr Koo, who joined the stock exchange in December 1990 from New York law firm Kaye Scholer, was promoted to deputy head of listing last February. Before his promotion, Mr Koo headed the division's China listing affairs unit and played a major role in listing mainland H shares. Herbert Hui, head of the listings division, said Mr Koo had made a significant contribution to the exchange. He said there would have to be discussions with chief executive Paul Chow about Mr Koo's replacement. Mr Koo is the second significant official from a Hong Kong securities regulatory body to be drawn away this year. In June, Hong Kong Futures Exchange head of research and product development Virginia Mumford, who played a leading role in setting up the territory's options index market, left to join Jardine Fleming. In other industry moves, Wardley senior fixed-income manager Jay Boice has been hired by Kidder Peabody to become vice-president of the international capital markets group.