I have a US issued APEC card so there are no listed countries on the back. I travel to BKK every month. The fact that Thailand is not listed on the back is always an issue. Some times I can talk my wY through but more than 50 recent if the time the immigration officer refuses to accept the card and sends me back. I have a Business Visa for Thailand so that is not the issue. It seems BANGKOK does not honor the program without Thailand being listed on the back of the card