The Operational Structure of ACMECS: How Mekong Countries Drive Cooperation

ACMECS has evolved into one of the Mekong region’s most practical and dynamic cooperation frameworks, linking political direction with on-the-ground action. Through its multi-layered structure—ranging from the Leaders’ Summit to technical working groups—ACMECS enables the five Mekong countries to coordinate policies, implement cross-border projects, and strengthen regional resilience. Guided by the three pillars of the ACMECS Master Plan, the framework continues to drive shared development, connectivity, and stability across mainland Southeast Asia.
ACMECS and its latest development

Since 2003, ACMECS has empowered Mekong countries to lead their own path to regional growth. With new milestones like the Interim Secretariat, expanded Development Partners, and a dedicated Development Fund, ACMECS is entering a new era—turning vision into action for a more connected and sustainable Mekong subregion.
Protected: ACMECS: the Mekong Sub-Region’s Future in Making

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Protected: 3s for Prosperity ACMECS: The ACMECS Development Framework

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Protected: 10th ACMECS Summit at Kunming: Towards Seamless Connectivity

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10th ACMECS Summit – The Journey in Action

The 10th ACMECS Summit, held in Kunming, China, marked major milestones in Mekong sub-regional cooperation — from launching the official ACMECS website to welcoming New Zealand as a new development partner and advancing water resource management.
ACMECS & Development Partners (DPs)

Established in 2003, the Ayeyawady-Chao Phraya-Mekong Economic Cooperation Strategy (ACMECS) unites five member countries—Myanmar, Lao PDR, Cambodia, Thailand, and Viet Nam—to bridge development gaps and support ASEAN integration. Guided by the ACMECS Master Plan, its focus lies on three pillars: Seamless Connectivity, Synchronized Economics, and Smart, Sustainable Growth.
ACMECS collaborates with Development Partners, including Australia, China, India, Japan, the Republic of Korea, the United States, and New Zealand, to implement prioritized projects, connect regional frameworks, and support sustainable growth. Together, they are shaping a brighter, more connected future for the Mekong subregion.
ACMECS Summit 2024

Leaders from the Mekong region gathered at the 10th ACMECS Summit, hosted by Lao PDR, to strengthen regional cooperation under the theme ‘Towards Seamless Connectivity for Mekong Sub-regional Integration.’ Key milestones included the adoption of the Vientiane Declaration, advancements in water resource management, and welcoming New Zealand as a Development Partner, marking a new chapter in Mekong integration.
Protected: Sub-Regional and Trans-National ACMECS

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Urgent Regional Action Needed to Combat Mekong Flooding Crisis

On 20 September 2024, H.E. Mr. Maris Sangiampongsa, Minister of Foreign Affairs, met with ACMECS Ambassadors to discuss an emergency response to the Mekong region flooding crisis. He emphasized the need for regional unity, proposing expedited telemeter station installations and enhanced water management cooperation to address the situation.
