Research method
The following approach was used to select stakeholders and conduct the interviews:

The chosen stakeholders have experience in financing structures for Nature-Based Solutions and come from private or public investors, governmental agencies, or research institutions. The selected stakeholders for the project included the Asian Development Bank (ADB), World Bank Group (WBG), Mekong Capital, Invest International, DFAT Laos, DFAT Vietnam, FAO, Temasek Foundation, Mekong River Commission, and The Mekong Delta Development Research Institute. All stakeholders work in the financial or donor sector and have either implemented or are considering projects in the Mekong River countries.
The interview guide, prepared by HaskoningDHV and approved by WWF, was sent to all stakeholders before the interviews. The interviews were recorded (solely for internal use), and the minutes of these interviews have been circulated to all stakeholders for their feedback.