 Institut Sinaran is currently the largest Cambridge GCE A-Level Centre in East Malaysia and have produced more than 10,000 graduates.Institut Sinaran was first established as Sabah Tshung Tsin Pre-University Centre in 1987 at Sabah Tshung Tsin Secondary School.It was later upgraded from a Centre into an institute on 14 July 2002 launched by Datuk Chong Kah Kiat, 13th Chief Minister of Sabah.