Executive Councillor Rosanna Wong Yick-ming yesterday gave her backing to Chief Executive Tung Chee-hwa for a second term. 'He has been striving to serve Hong Kong. He has commitment to the future development of Hong Kong,' she said. Ms Wong said she would campaign for Mr Tung if necessary. It is widely expected that Mr Tung will announce next week that he will stand for a second five-year term. Formal nominations begin in mid-February and will be open for two weeks. Last Friday, former top Tung adviser Edgar Cheng Wai-kin suddenly left his post as head of the Central Policy Unit. He is expected to play a key role in Mr Tung's election campaign. Irene Yau Lee Che-yan, formerly director of Government Information Services, will take special leave soon from the Kowloon-Canton Railway Corporation, where she heads the public relations department, to head a small public relations team handling Mr Tung's election publicity. Mrs Yau was seconded to work for the chief executive-designate's office after Mr Tung was elected the first chief executive in 1996. She retired from the Government in 1997. Meanwhile, Xu Simin, a veteran adviser to China who supported the failed candidacy of former chief justice Yang Ti Liang in the first chief executive race, said he had dropped the idea of finding a candidate to challenge Mr Tung in the second election. Mr Xu, also an Election Committee member, said he believed Mr Tung would be able to get more than 600 nominations from the 800-member body. Under the Basic Law, candidates in the chief executive election must secure at least 100 nominees. Pro-democracy force have no plans to field a candidate to contest what they term a 'small-circle election'. Meanwhile, Democratic legislator Cheung Man-kwong will seek to lower the ceiling of expenses for the election from the proposed $9.5 million to $4 million. Subsidiary legislation on expenses will be tabled to Legco for approval next week. Mr Cheung said the proposed amount was too high and would be unfair to candidates with financial difficulties. Government officials earlier argued the expenses ceiling was justifiable.