葉國謙
On 16 February 2005, the DAB merged with the Hong Kong Progressive Alliance, and was renamed as the Democratic Alliance for the Betterment and Progress of Hong Kong. The two parties were merged with new committees and leadership in May, Ma Lik was re-elected as chairman and Ip Kwok-him, Tam Yiu-chung, Maria Tam and Lau Kong-wah as Vice-Chairmen. Since the merge with the Progressive Alliance, the DAB has gradually leaned to a more pro-middle-class position. In April 2007 leadership election, solicitor Gregory So succeeded Maria Tam as the Vice-Chairman of the party. The four new Standing Committee members were all professionals; besides Gregory So, Cheung Kwok-kwan, the Chairman of the Young DAB was a solicitor, Starry Lee Wai-king was an accountant, Ben Chan Han-pan was an engineer. Meanwhile, the pro-labour and pro-grassroots FTU faction began to run in elections in their own banner. On 8 August 2007, Chairman Ma Lik died of cancer in Guangzhou. Tam Yiu-chung was elected as the new chairman by the Standing Committee on 28 August.