evidence: Mongolia became a member of the World Bank in February 1991, and the World Bank celebrated the 30th anniversary of Mongolia’s membership in 2021. Since 1991, IDA has supported Mongolia in a range of areas, including rural development, education, Ulaanbaatar’s development, sound management of the mining sector, environmental protection, and policy development. Over the last three decades, the World Bank has provided over US$1.6 billion in development financing to the country.