Mayor stays acting secretary as city backs Beijing drive Shanghai ended a three-day Communist Party meeting yesterday with Mayor Han Zheng remaining the city's acting party secretary. A document repeating Shanghai's support for the central government drive to build a harmonious society and combat corruption was also endorsed at the meeting. The conclave came as provincial leaders from around the country picked their new party secretaries ahead of next year's crucial Communist Party congress. Mr Han was named acting party secretary in September after his predecessor, Chen Liangyu , was sacked for alleged corruption over Shanghai's multibillion-yuan pension fund scandal. Since Chen's downfall, dozens of senior officials from various government departments have been taken away for investigation. Reports from Shanghai last night said the meeting did not mention the investigation into Chen and continued to refer to Mr Han as acting party secretary. Analysts said this indicated Beijing's investigations into Chen were continuing and leaders had not yet decided whether to name a new party secretary for Shanghai or promote Mr Han to the top job. In a document adopted by the Shanghai Communist Party Committee yesterday, the city's leaders again pledged allegiance to Beijing's plan for the city set out by President Hu Jintao . During a trip to Shanghai in March, President Hu said the city should act as a national leader in improving its economic development model, in fostering innovation capacity, in further opening up and reform, and in building a harmonious society. The document issued by Shanghai yesterday said that next year, rather than just focusing on economic growth rates, the city should pay attention to making its economy more efficient, and assessing the social and environmental impact of development. Shanghai should also try to reduce the average amount of energy consumed to generate each unit of gross domestic product, allocate land in a more frugal way and take public well-being into greater consideration, the meeting said. The committee concluded that next year would be a key period in preparations for the 2010 Shanghai Expo, and groundwork for the event would be carried out faster. It also called for a tougher stance against corruption and for lessons to be learned from the recent pension fund case. But it also stressed that Shanghai must maintain relatively fast economic growth. Xi Jieren , vice-director of the Chinese Pudong Institute for Administrators, was promoted to a seat on the Shanghai Communist Party Committee at the meeting. Two weeks ago, Beijing appointed Shen Deyong , former vice-president of the Supreme People's Court and a member of the Central Commission for Discipline Inspection's standing committee, to head the Communist Party's disciplinary body in Shanghai.