Where is the exchange office for customs clearance in don mueang international airport?

They are 1 exit and 2 exit respectively. According to relevant public information, there are exchange counters near these two exits. Specifically, there are many banks and foreign exchange counters outside the 1 exit, including Bank of Thailand, Bank of Bangkok and SiamCommercialBank. There are also many foreign exchange counters and ATMs outside Exit 2, such as SuperRich and ValuePlus. In addition, there are many banks and foreign exchange counters in the departure hall and arrival hall of don mueang international airport, which are convenient for passengers to exchange money after departure or arrival.