2010: 6 founding members (Ghana, India, Indonesia, Philippines, Thailand, Vietnam)
2011: +3 members (Namibia, Kenya, Mali)
2012: +1 member (Morocco)
2014: +11 members (Bangladesh, Colombia, Egypt, Ethiopia, Japan, etc.)
2018: +5 members (China, Myanmar, Ukraine, Lao PDR, South Africa)
2023: +3 members (Pakistan, Saudi Arabia, Bhutan)
2024: +3 members (Burkina Faso, Botswana, Tajikistan)