| International trading system regulated the principle of non-discrimination, as a fundamental principle to ensure implementation of free trade is transparent, properly, predictable and fairness for all WTO member countries. However, the WTO Agreement also establishes exceptions to override the basic principles, for example the establishment of the regional market. ASEAN have made use of the exemption by establishing the AEC to purpose establish a single market and production base which supported by the free flow of goods, services, investment, capital and skilled labor, which has been formulated in regulations. Within ASEAN, such regulations have adopted all principles and provisions on WTO Agreement. In this study we have analyzed the data and information from each of ASEAN member countries with the aim to identify problems or potential problems that may arise in the application of the principle of non-discrimination in the framework of the AEC, with several case studies of international trade. The results indicate that there were differences in economic level and in general, there are similarities in international trade transactions which still based on natural resource. Both of these aspects will have a big influence on effectiveness of the application of the principle of non-discrimination on AEC. |