An active, responsible member, Vietnam is working closely with other ASEAN countries to meet the target of building a united, strong ASEAN community in 2015 and setting course for the grouping beyond 2015, so as to promote its central role in addressing regional issues.
Recent tensions in the East Sea are expected to be discussed at the forum.
Myanmar has assumed the ASEAN Presidency for the first time this year since it joined the grouping in 1997, and this is the first time Myanmar has hosted the event.
Meetings of senior officials, economic and foreign ministers will be held ahead of the opening ceremony and sessions of the summit due to take place on May 11.
The summit is expected to issue the Nay Pyi Taw statement on building the ASEAN community in 2015.