Encouraged by the establishment of People's Republic of China in 1949, Sibu communist members started to establish themselves in Sarawak in the early 1950s. Huang Sheng Zi (黄声梓) from Bintangor became the president of Borneo Communist Party (BCP). BCP activities mostly concentrated in Sibu, Sarikei, and Bintangor. His brother, Huang Zeng Ting (黄增霆), who was also a communist, played an important role in the formation of first political party in Sarawak, Sarawak United Peoples' Party (SUPP) and became the party's first executive secretary. Sarawak Liberation League (SLL) was formed in 1954 following the consolidation of BCP with several other communist organisations.