Within Shanghai, the grounds of the former Expo site now constitute the Expo Park, including the former China Pavilion. The Bureau of International Expositions (BIE) and the Shanghai government have announced plans to construct the world's only official World Expo Museum in Shanghai, on the Puxi side of the expo site. Construction began in 2012, and the museum opened its doors on 1 May 2017. More than 200 participants from Expo 2010 have donated over 30,000 exhibits to the future museum. The BIE has added into its formal requirements that all future Expo bidders shall support the new Expo Museum.