 Cluster schools are public schools that are given autonomy in administration and adequate funding from the government to excel in specialized fields (academic, sports and extra-curricular activities) of choice.In June 2008, SMKSU came under the spotlight when the school board member decide to take action if the organisers of the school's annual ex-prefects reunion invite the Pakatan Rakyat Assemblyman for Subang Jaya, Hannah Yeoh.Yeoh was a former head-prefect of the school.