The Mekong Committee was established in 1956 under the auspices of the United Nations to coordinate aid and manage resources in the river basin.
In 1995, Cambodia, Laos, Thailand, and Vietnam signed an Agreement on the Cooperation for the Sustainable Development of the Mekong River and set up the Mekong River Commission (MRC) to replace the Mekong Committee.
Since 2010, the MRC has decided to hold its summit every four years.
The first MRC summit was held in Hua Hin, Thailand in April 2010 and the second transpired in Ho Chi Minh City, Vietnam in April 2014.
'Joint Efforts and Partnership towards Achievement of the Sustainable Development Goals in the Mekong' is the theme of the third MRC Summit in Cambodia.