Alberto Di Minin, in the Great Hall of people, minutes before the signature in front of President Mattarella and President Xi Jinping. Next to Alberto, from left to right, the other three signatories: the President of Chongqing University, Professor ZHOU Xuhong, Dr.MU Huaping, Vice Mayor of Chongqing, Prof Pierdomenico Perata, Rector of Scuola Superiore Sant'Anna.