This commercial building, on the Binhai New Area of Tianjin city, China. With an area of 3.86 square kilometers. When the building was completed, it will be the largest financial district in the world so far. The public area and the landscape belt were used in THJ bamboo decking, which makes many exciting contrasts with the modern glass office building. The newly outdoor eco-friendly bamboo material is used to reflect the environmental protection concept of the project. The safety of bamboo material is guaranteed because of the fire class B1 that bamboo decking can achieved.