On December 10, the Exhibition on Achievements of Development of General Aviation over 40 Years of Reform and Opening up was held in the hall of CAAC. Administrator Feng Zhenglin, Deputy Administrators Li Jian and Dong Zhiyi attended the opening ceremony and browsed the exhibition. Li Jun, Chairman of China Air Transport Association (CATA), heads of relevant departments of CAAC and personnel from institutions within the civil aviation industry attended the ceremony.