Use the thought in the oriental culture of Square Sky and Circle Earth.The overall exterior wall is square and facing the sky while a circle mould facing the earth is made in the interior space which forms the concept of Square Sky and Circle Earth. 40 types of circles in different sizes are applied to form the overall interior space layout.The sand table in the center of the building is the biggest circle in the whole building.Starting from the center circle, there scatters out circles in different sizes to complement the whole interior space,while forming a complete and dimensional space with other function area such as VIP meeting area.