AIIB Timeline:

Oct 2, 2013 - President Xi Jinping proposes the establishment of the Asian Infrastructure Investment Bank to promote connectivity and economic integration in Asia.

April 10, 2014 - Chinese Premier Li Keqiang announces at Boao Forum that China was ready to "intensify consultations with relevant parties in and outside Asia on the preparations for the Asian Infrastructure Investment Bank (AIIB)."

Jin Liqun, former chairman of investment bank China International Capital Corp and vice-president of the Asian Development Bank, is appointed as secretary-general of the Multilateral Interim Secretariat for Establishing the AIIB.

Oct 24, 2014 - The first batch of 22 prospective founding members, including China, India and Singapore, sign the Memorandum of Understanding on Establishing the AIIB in Beijing.

Nov 24, 2014 - Indonesia signs up as the last ASEAN country to join the AIIB.

Mar 12, 2015 - China receives confirmation from the United Kingdom that it is applying to join the AIIB as a founding member. The UK is the first of the G7 leading economies to join the bank, and its participation prompts a wave of other European countries to follow.

Mar 31, 2015 - It is announced that 57 countries have joined or applied to join the AIIB as prospective founding members before the deadline. Thirty-seven are classed as “intra-regional members”, entitled to the bulk of the shares in the bank, while the other 20 are “non-regional members”.

A Chief Negotiators’ Meeting is convened at the finance deputy level as the primary body responsible for negotiating the bank’s articles of association. A Multilateral Interim Secretariat is established to provide technical support and services to the CNM.

November onward - Five rounds of CNM talks are held in China, India, Kazakhstan and Singapore. Within six months, consensus is reached on all key elements, such as the AIIB’s purpose, membership, capital subscription, voting powers, operations and governance and decision-making structures.

June 29, 2015 - The 57 prospective members sign the articles of association in Beijing. The articles will be submitted to each nation’s legislature for approval, and the bank is expected to be formally established before the end of the year.