Which hotel management group does the Portman Ritz-Carlton Shanghai belong to?

The Portman Ritz-Carlton Shanghai is managed by American International Group, and the Portman Ritz-Carlton Shanghai is invested by American International Group. The hotel opened in 1998 and was renovated in 2003. It is 45 floors tall and has 610 guest rooms, of which standard rooms are about 37 square meters. Located on the famous Nanjing Road, it is a comprehensive hotel integrating retail, catering and entertainment. Restaurants and lounges at the Portman Ritz-Carlton Shanghai include Tables Restaurant, Summer Garden Chinese Restaurant, Parando Italian Restaurant, Ritz-Carlton Bar and Lobby Lounge.