Why should I pay the airport construction fee?

Airports, airlines and CAAC are different units, and each receives its own money. For ordinary passengers, the airport construction fee should be paid to the airport authorities at the same time as the airline freight. For airlines, CAAC will also charge airlines a part, that is, 10% of their main business income. Airport, airline and civil aviation air traffic control bureau, their responsibilities are: airport: provide tarmac for airlines, and charge according to downtime. Provide related services (check-in, on-site dispatch, etc.). ) and charge the airline a service fee. Terminal available. Civil Aviation Air Traffic Management Bureau: responsible for air route scheduling. According to the number of flights, the airline's route fee is charged. Airline: responsible for air transportation. Collect (passenger and freight) transportation fees.