 Construction of the building, designed by WilkinsonEyre, broke ground in December 2005, and was completed in 2010.The building is used as a conference center, hotel and office building.Floors 1 through 66 are used as offices, floors 67 and 68 are for mechanical equipment, floors 69 to 98 have a Four Seasons Hotel with the lobby being on the 70th floor, and floors 99 and 100 are used as an observation deck.