588 Madang Lu near Xujiahui Lu (马当路588号进徐家汇路), according to the ExpoChina twitter. They’ve built a new Lost & Found Center there that’s easily accessible by taking the No.9 Line to the Madang Road stop. It’ll be open daily from 9am to 6pm until the end of the year. Over the last six months, visitors have lost nearly 8000 objects on Expo grounds, which actually doesn’t sound like that much for crowds of 73 million. So, if you lost something and are pretty sure it wasn’t pickpocketed off you, why not try this place? It’ll be interesting to see how you convince them that whatever they have is actually yours.