The Democratic Party yesterday lost its chairmanship of Kwai Tsing District Council to the government-friendly camp after holding the seat for the past two decades.
The defeat might be followed today by the Association for Democracy and People's Livelihood losing its domination of the Sham Shui Po District Council's chairmanship.
The Democratic Party nominated Wong Bing-kuen for Kwai Tsing District Council chairman after Chow Yick-hay stepped down. Mr Wong was defeated by Tang Kwok-kong, by 20 votes to 15.
Mr Tang is an ex officio councillor, being the chairman of a rural committee in the New Territories.
The Democratic Party had dominated the Kwai Tsing chairmanship since 1988, when it was first held by veteran member Lee Wing-tat.
Sin Chung-kai, the party's vice-chairman and a legislator, held the post after the handover until 1999, when he was replaced by Mr Chow, who had served in the position ever since.
Mr Sin said it was disappointing to lose the chairmanship, although the outcome was expected.