【正】Shanghai held its first international aviation symposium at its Portman Ritz-Carlton from April 28 to 30 in order to promote the sustainable development of the civil aviation industry in East China and the Yangtze Delta. The forum was also considered as an accelerating effort to build Shanghai into an international air hub. CAAC Minister Yang Yuanyuan and Shanghai Mayor Han Zheng delivered opening speeches.Yang said: "Priority should be given to the human spirit when we step up effort to build the city into an air hub. We aim to let more common people benefit from the development of civil aviation."