abstract:MGM Macau (美高梅, formerly known as MGM Grand Macau) is a 35-story, 600-room casino resort in Macau which officially opened on 18 December 2007. Under a sub concession approved by the Macau government, the project is owned and operated as a 50–50 joint venture between MGM Resorts International and Pansy Ho, daughter of Macau casino magnate Stanley Ho.