The Asian Development Bank (ADB) has been Mongolia’s largest multilateral development partner since 1991. ADB has provided Mongolia with $1.6 billion in total resources, including loans, grants, and technical assistance projects. Currently, ADB's portfolio in Mongolia consists of 18 loans worth $544 million, 9 grants worth $129 million, and 30 technical assistance projects worth $25 million. ADB assistance focuses on sectors like transport, water and sanitation, agriculture, and energy to support Mongolia's economic development and diversification.