The soaring participation reflects China's growing international clout and many countries’ desire for a more inclusive, balanced and mutually beneficial international economic order, Xinhua news agency reported.
The growing infrastructure demand in cash-strapped Asian countries will necessitate the need for more than $700 billion each year by 2020.
More countries are urging Washington to approve IMF quota reforms to allow a better balance of power, but previous attempts to give greater weight to rising states have stalled out of national interests.
Focused as it is on infrastructure development in Asia, the AIIB offers abundant trade and investment opportunities also for developed countries with advanced technology.
47 countries have already applied to join AIIB including China, India, Indonesia, Israel, Bangladesh, Brunei, Cambodia, Jordan, Kazakhstan, Kuwait, Laos, Maldives, Malaysia, Mongolia, Myanmar, Nepal, New Zealand, Oman, Pakistan, Philippines, Qatar, Saudi Arabia, Singapore, Sri Lanka, Tajikistan, Uzbekistan, Thailand, Vietnam, France, Germany, Italy, the United Kingdom, Luxembourg, Switzerland, Austria, Turkey, South Korea, Brazil, Russia, Georgia, the Netherlands, Denmark, Australia, Egypt, Finland, Kyrgyzstan and Sweden.