UN Economic and Social Commission for Western Asia
"ESCWA was established in 1973 to stimulate economic activity in member countries, strengthen cooperation between them, and promote development."
Also see their resources and publications.
Association of Southeast Asian Nations
ASEAN encourages cooperation in the economic, social, cultural, technical, educational and other fields, and in the promotion of regional peace and stability through abiding respect for justice and the rule of law and adherence to the principles of the United Nations Charter.
UN Economic and Social Commission for Asia and the Pacific
"The Economic and Social Commission for Asia and the Pacific (ESCAP) is the most inclusive intergovernmental platform in the Asia-Pacific region. The Commission promotes cooperation among its 53 member States and 9 associate members in pursuit of solutions to sustainable development challenges. ESCAP is one of the five regional commissions of the United Nations."