The announcement of the establishment of the ASEAN Economic Community (AEC) at the end of 2015 marked a major milestone for its member states: ‘we were pleased with the achievements of the regional economic integration efforts as demonstrated by the near completion of implementation of the AEC Blueprint 2015.’ However, while the ASEAN countries were able to implement a number of the regional measures by 2015, many of them remained incomplete. One reason for this gap in implementation are conflicts of interest between countries or firms or between government agencies responsible for implementation. This chapter looks at this aspect of policy implementation provides suggestions to address some of the conflicts that are slowing down the process of implementation. It seeks to answer why the 10 ASEAN members, despite committing themselves to AEC measures, have so far fallen short of their final deliverable of an integrated market. The chapter takes a qualitative approach and uses several secondary sources to observe the progress in AEC implementation. Although the AEC is a regional polity, implementation responsibility resides with the national governments. Hence, the empirical discussion adopts the perspective of the member countries, rather than that of ASEAN itself as a regional organisation.