The popularity rating of Hong Kong Chief Executive Tung Chee-hwa recorded a significant increase this month, a poll shows. Mr Tung scored 44.9 marks out of 100, a rise of 1.5 from his rating in mid-August, the poll carried out by the University of Hong Kong's Public Opinion Programme found. A total of 64 per cent of respondents did not support Mr Tung as the chief executive, while 18 per cent did. The poll, carried out shortly before the government announced the withdrawal of the National Security Bill last Friday, showed that Secretary for Security Ambrose Lee Siu-kwong and Financial Secretary Henry Tang Ying-yen fared well. Mr Lee secured 58 marks and Mr Tang 58.2 from the 1,059 respondents in the poll conducted between September 1 and 3. But another newcomer to the Mr Tung's cabinet, Secretary for Commerce, Industry and Technology John Tsang Chun-wah, was not given a popularity rating as less than 30 per cent of respondents gave him a score. Programme director Robert Chung Ting-yiu said although Mr Tung's popularity had climbed, it was unclear whether the government's decision to withdraw the National Security Bill would further increase Mr Tung's popularity. The study also showed that Chief Secretary Donald Tsang Yam-kuen remained the most popular official in the government, with 62.7 marks. Secretary for the Environment, Transport and Works Sarah Liao Sau-tung, who recorded 59.4 marks, topped the popularity list of bureau directors, while Secretary for Financial Services and Treasury Frederick Ma Si-hang remained at the bottom, scoring only 42.9 marks.