State-owned enterprises, the airport enterprise management department is a unit directly under the Civil Aviation Administration of China, and it is the management organization of regular employees (excluding temporary workers) in all airports in China (excluding military airports, airports in Hong Kong, Macao and Taiwan). All the employees of airline companies with flights in and out of the airport and those with working entities within the airport are under the jurisdiction of the airport enterprise management department, which means that those who want to work in the civil aviation airport can only be employed after being assessed, approved and filed by the airport enterprise management department. The headquarters of the Enterprise Management Department is in the Capital Airport. There are five branches in China: Lintong District of Xi &;an, Yubei District of Chongqing, Huadu District of Guangzhou, Rong Sheng City Plaza of Shijiazhuang and Airport Road of Chaoyang District of Beijing.