With the difference in the concept of the city shall be submitted to the Administrative Policies and ideas about the trade and investment that may be different, it is not easy to agree on the Language and religion, it is not that it will be a different Buddhism Islam and Christianity and the language of other nations, but there are a variety of different ภาษากลาง of ASEAN countries is English, which is an advantage in the use of English language, Malaysia, Singapore and the Philippines, Vietnam, Cambodia, and develop the skills to use in English quickly