The octagonal buildings, clad with a dark blue refractive glass curtain wall, were designed by American architect Paul Rudolph who was working at the time as a design consultant for Wong & Ouyang.
The octagonal buildings, clad with a dark blue refractive glass curtain wall, was later locally dubbed "The Koala Tree" because they resemble koalas clutching a tree. The buildings were designed by American architect Paul Rudolph who was working as a design consultant for Wong & Ouyang.