Chantale Yok-Min Wong is the United States Executive Director. Before her appointment, she was the Senior Vice President at AmidaTechnology Solutions. She was appointed by President Obama to serve as Vice President for Administration and Finance, and Chief Financial Officer at the Millennium Challenge Corporation (MCC). Prior to MCC, she was the budget director of the National Aeronautics and Space Administration (NASA). She has also held leadership positions at the Office of Management and Budget, Departments of Treasury and Interior, and the Environmental Protection Agency. She joined ADB in 1999 as an Environment Specialist and was subsequently appointed by President Bill Clintonas U.S. Alternate Director. She holds a Master in Public Administration from the Kennedy School of Government at Harvard. She has another Master in Environmental Engineering from the University of California, Berkeley, with a focus on water and waste water management. She earned her undergraduate degree in civil and structural engineering from the University of Hawaii.