Containing 2.8 million square meters of office, hotel, retail, and conference center facilities, the Rongsheng project will contain a city within a city. The mixed-use complex consists of two towers, for office and hotel functions, and a retail/entertainment podium. The towers are sculpted with a combination of concave and convex geometries that taper to give the towers a distinct profile. The curtain wall cladding strategy consists of a series of repetitive unitized curtain wall panels that appear to fade from the bottom to the top. The project is a collaboration of HYA/MYS and Shanghai Archi-Union.