A memorandum of understanding on cooperation in the field of air transportation was signed here today between General Authority of Civil Aviation of the Kingdom of Saudi Arabia and Chinese Ministry of Civil Aviation Affairs. The memorandum was signed by the Authority's Chairman Eng. Abdullah Nour Rahimi and Chinese Deputy Minister for Civil Aviation Affairs Yang Goging. In a statement to the Saudi Press Agency (SPA), Rahimi said that the memorandum includes among others an exemption from mutual taxation on activities, equipment and air transportation establishments.