www.hklaw.com/en/insights/publications/2022/02/ifc-releases-guidelines-for-blue-finance#page=1
See also:
www.dlapiper.com/en/us/insights/publications/2022/09/the-blue-bond-guidance-to-finance-the-sustainable-blue-economy/
Making a splash: Launching the global practitioner’s guide for bonds to finance the sustainable blue economy | DLA Piper