Heng Samrin
As of 1990, members of the Politburo were Heng Samrin (General Secretary), Chea Sim, Hun Sen, Chea Soth, Math Ly, Tea Banh, Men Sam An, Nguon Nhel, Sar Kheng, Bou Thang, Ney Pena, Say Chhum and alternate members included Sing Song, Sim Ka and Pol Saroeun. Members of the Secretariat were Heng Samrin, Say Phouthang, Bou Thang, Men Sam An and Sar Kheng.