AIIB (Asian Infrastructure Investment Bank)

The Asian Infrastructure Investment Bank (AIIB) is a multilateral development bank founded in 2016 and headquartered in Beijing, with 109 member countries, that finances sustainable infrastructure and other productive sectors across Asia and partnering regions, with cumulative approvals of approximately $70 billion across more than 350 projects.

What is the AIIB?

The AIIB was established to address Asia's infrastructure financing gap, focusing on transport, energy, water, urban development, and digital connectivity. It is the youngest of the major multilateral development banks, having become operational in 2016, but has grown rapidly to become a significant source of project finance alongside the World Bank and ADB, approving $7 to $10 billion per year.

One of the AIIB's most distinctive features is its open eligibility policy: firms from all countries, whether or not they are AIIB members, can bid for contracts on AIIB-financed projects. This sets it apart from institutions that restrict eligibility to member-country firms or apply domestic-preference margins. The AIIB frequently co-finances with the World Bank and ADB, meaning a single project may publish tenders on multiple portals. Procurement notices appear on the AIIB's project pages at aiib.org. The aiib-procurement-policy sets the rules borrowers must follow when conducting icb and other competitive procurement. The ndb-new-development-bank, another newer MDB with similar growth ambitions, is a useful comparison institution for suppliers building an emerging-MDB strategy.

Why the AIIB matters for bidders

The AIIB's open eligibility rule is the most important practical point for non-Asian suppliers. Unlike some development banks where member-country preference limits competition, any qualified firm anywhere in the world may bid on contracts financed by the AIIB. Co-financing with the World Bank and ADB also creates situations where a single project generates notices across multiple portals, rewarding suppliers who monitor all three. Because the AIIB is still scaling up, the pipeline of future projects is growing faster than the pool of established supplier relationships, giving early movers a real advantage in sectors such as clean energy, transport, and water infrastructure.

FAQ

Can firms outside Asia bid on AIIB-financed contracts?

Yes. The AIIB applies no nationality restriction, so firms from any country may bid regardless of whether their country is an AIIB member.

How does the AIIB compare in size to the World Bank?

The AIIB approves roughly $7 to $10 billion per year, compared to the World Bank Group's much larger lending programme. It is the youngest major multilateral development bank, established in 2016.

How does co-financing with other MDBs affect procurement?

When the AIIB co-finances a project with the World Bank or ADB, the procurement rules and portal used are typically those of the lead bank. Suppliers should monitor all co-financing institutions' portals for such projects.