Lee Do-yoon had served as CIO of the Police Mutual Aid Association between 2016 and 2020 Lee Do-yoon, a former chief investment officer of South Korea's Police Mutual Aid Association (PMAA), has been named as CIO of the Yellow Umbrella Mutual Aid Fund, a $13 billion savings arm of Korean small business owners. He was among the three shortlisted candidates for the new post, including an unidentified domestic savings fund CIO, to replace Jeong Du-Yeong who is retiring at the end of this month after a two-year term. Previously, Jeong had worked as CIO of Korea Scientists and Engineers Mutual-Aid Association for four years until 2019.