The move is aimed at preparing for the general election in the city-state next year.
The CEC expressed its appreciation to outgoing Secretary-General Lee Hsien Loong for his many years of leadership and service to the party and Singapore, said PAP in a media release.
Lee will remain a member of the committee, while four new members were co-opted on the day, namely National Trades Union Congress (NTUC) Secretary-General Ng Chee Meng, Senior Minister of State for Foreign Affairs and National Development Sim Ann, Mayor of North East district and Member of Parliament (MP) for Tampines GRC Desmond Choo, and former MP Lam Pin Min.
Voting for the PAP's CEC takes place every two years. The leadership elected this round will lead the party into the next general election, which must be held by November next year./.