AOT had planned to assume management of Udon Thani, Sakon Nakhon Airport, Tak, and Chumphon Airport from the Department of Airports in 2019.[4] In August 2019, it announced that its plans had been amended; it would assume control of Udon Thani International Airport, Tak Airport, Buriram Airport, and Krabi International Airport, leaving Sakon Nakhon and Chumphon to the DOA. DOA is resisting the change as Udon Thani and Krabi are its money-making airports; Sakon Nakhon and Chumphon are not.[5]