Beruas is a small town and mukim in Manjung District, Perak, Malaysia. Beruas is named for a local mangosteen-like tree, Garcinia hombroni…Beruas is a small town and mukim in Manjung District, Perak, Malaysia. Beruas is named for a local mangosteen-like tree, Garcinia hombroniana, the "seashore mangosteen", called in the local Malay dialect pokok bruas, which bears fruit called buah bruas.