Another Beijing-friendly professional is poised to become a deputy minister under the chief executive's plan to add two tiers to the political system. Benjamin Lau Shun-tung, chairman of the Public Hospitals, Department of Health and the Universities Doctors Association, said yesterday that he been approached to work in the labour and welfare bureau. The association has been an affiliate of the Federation of Trade Unions, whose president Cheng Yiu-tong is a member of the Executive Council. Dr Lau said 'someone with a close working relationship with the government' had approached him to see if he was interested. 'I have been in the medical field for a long time,' he said. 'I think it's time I take on a new challenge.' Sources said Dr Lau, who works for the Hospital Authority, was on a list of potential appointees submitted by the federation for government consideration. Dr Lau dismissed suggestions he got the job because of his union links. He said he believed his extensive public service would contribute to the welfare and labour portfolios. Dr Lau also disagreed that political work might not suit a medical professional. 'I don't think the job is very politicised. The job involves judgment and administration work.' The 46-year-old doctor said he was prepared to sever ties that might cause conflicts of interest. He is currently head of the Government Employees Association and the Hong Kong Primary Care Foundation. Another source said Greg So Kam-leung, vice-chairman of the Democratic Alliance for the Betterment and Progress of Hong Kong, would be appointed as a deputy minister and Caspar Tsui, vice-chairman of Young DAB, as a political assistant. The 11 deputy ministers, or undersecretaries, will be paid HK$193,773 to HK$223,586 a month, while the 13 political assistants will earn HK$104,340 to HK$163,963. Chief Executive Donald Tsang Yam-kuen has said the appointees will be drawn from political parties, academia and professional ranks. A Constitutional and Mainland Affairs Bureau spokeswoman would only say recruitment was continuing.