From 31 members at its establishment in 1966, ADB has grown to encompass 67 members - of which 48 are from within Asia and the Pacific and 19 outside.
ADB Annual Report 2012: Members, Capital Stock, Voting Power.
* Developing member countries: Afghanistan, Armenia, Azerbaijan, Bangladesh, Bhutan, Brunei Darussalam, Cambodia, Cook Islands, People’s Republic of China, Georgia, India, Indonesia, Fiji, Hong Kong, China, Kazakhstan, Kiribati, the Republic of Korea, Kyrgyz Republic, Lao People’s Democratic Republic, Malaysia, Maldives, Marshall Islands, Federated States of Micronesia, Mongolia, Myanmar, Nauru, Nepal, Pakistan, Palau, Papua New Guinea, Philippines, Samoa, Singapore, Solomon Islands, Sri Lanka, Taipei,China, Tajikistan, Thailand, Timor-Leste, Tonga, Turkmenistan, Tuvalu, Uzbekistan, Vanuatu, Viet Nam
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Some members enter a new phase in their relationship with ADB as defined under the Classification and Graduation Policy.