Sarawak Chief Minister and PBB president Datuk Patinggi Abang Johari Tun Openg announced on Tuesday that the component parties of Sarawak Barisan, namely PBB, SUPP, PRS and PDP, made a unanimous decision to leave Barisan Nasional to form a new coalition of Sarawak-based parties, known as Gabungan Parti Sarawak (GPS).
Read more at https://www.thestar.com.my/news/nation/2018/06/12/sarawak-bn-parties-pull-out-of-coalition/