In 1981 a multi-purpose building and gymnasium known as building number six was built to commemorate the school's centennial. It was opened by the present King, H.M. KingBhumibol Adulyadej, on July 30, 1984. Every year on the eighth of March – the founding day of the school – all O.S.K ("Old Suankularb") students assemble in front of building six where they pay respect and express gratitude to the large statue of King Rama V which is located there. A great auditorium was built in 1995 and opened that year H.R.H. PrincessMaha Chakri Sirindhorn. The teaching of science and technology has been a central policy of the school. The school also possesses an extensive library, some books considerably rare and valuable and donated by former PM Thanin Kraivixien.