AIIB, World Bank expand sustainable infrastructure financing cooperation

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AIIB, World Bank expand cooperation

Highlights

The Asian Infrastructure Investment Bank and World Bank signed an updated memorandum expanding joint financing to include water, digital development, private capital mobilization, and policy-based financing.
The agreement, signed at the 2026 IMF and World Bank Group Annual Meetings in Bangkok, aims to mobilize additional sustainable development financing and leverage the institutions' respective expertise.
AIIB remains the World Bank's largest co-financier, with the revised agreement reinforcing collaboration to address infrastructure gaps and support sustainable, resilient, and inclusive growth.

Updated agreement broadens joint financing priorities

As reported by AIIB, the Asian Infrastructure Investment Bank and the World Bank Group signed an updated memorandum of understanding to deepen operational collaboration and respond to evolving development priorities. The agreement is signed by AIIB President Zou Jiayi and World Bank President Ajay Banga on the sidelines of the 2026 IMF and World Bank Group Annual Meetings in Bangkok.

The updated memorandum sets out water, digital development, private capital mobilization and policy-based financing as the main areas for stronger cooperation. Both institutions say they will use their respective expertise more closely and explore ways to mobilize additional financing for sustainable development.

Zou says the enhanced partnership reflects a shared commitment to sustainable development. She says deeper cooperation can help mobilize more capital for high-impact projects and support greener, more resilient and better-connected infrastructure.

Development finance partnership gains wider scope

AIIB says the revised agreement builds on an established partnership between the two institutions and reflects the growing scope of cooperation in a rapidly changing development environment. The move also reinforces their stated aim of working with partners to address infrastructure gaps and improve development impact.

According to AIIB, the bank remains the World Bank's largest co-financier to date. The expanded cooperation is aimed at supporting economies as they pursue sustainable, resilient and inclusive growth.

Our earlier article on Bangladesh’s proposed IMF loan programme explained that talks were focused on a $4.5–$5 billion package tied to stronger revenue mobilisation and financial-sector reforms. We noted that with the country’s revenue-to-GDP ratio down to about 7%, the IMF was urging timely fiscal and banking changes alongside a tight monetary stance to curb inflation and strengthen macroeconomic resilience.

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