On 3 March 2021 Mr. Tinnagorn Choowong, Executive Vice President of AEROTHAI and RAdm. Surachai Charoenrob, Commander of the Royal Thai Naval Air Division jointly signed the Letter of Ageement (LoA) which will function as the cooperation framework between the Royal Thai Naval Air Division and AEROTHAI. The LoA will provide the procedure for Area Control and Approach Control at Suvarnbhumi, Don Mueang, Trat and U-Tapao to maximize safety and efficiency of Air Traffic Services. This LoA and strengthen cooperation will support the development of U-Tapao Airport and the government's project, East Economic Corridor (EEC).