Mr. Chun Kyoo Park l Head

Mr. Chun Kyoo PARK is the Head of UN Office for Sustainable Development as of 26 October 2020. Before that, he has served at the government for almost 30 years mainly at the Ministry of Environment of the Republic of Korea where he joined in 1991 starting at mid-level management rising to the rank of the Vice Minister of Environment. Throughout the experience, he has built various capacities and broadened the scope of work by engaging in many different areas of sustainable development.

Mr. Park’s works range from air and water quality management to nature conservation, waste management, chemicals management, sewerage system, etc. Tackling climate change has been his major concern and produced lots of achievements at the ministry including setting up Korean National Mitigation Targets. Moreover, his career stretches to the international cooperation where he worked as the first secretary of the Republic of Korea Mission to the UN in charge of works related to the UN General Assembly 2nd Committee, and the Commission on Sustainable Development. He has attended various international meetings which include CBD COP13 in Cancun, Mexico as the chair of the COP12 Presidency and the most recently the 4th UN Environment Assembly in 2019 in his capacity as the head of Korean delegation. He worked closely with UN organizations to support program such as the UNEP’s PAGE (Partnership for Action on Green Economy) and the first international workshop for developing country officials on MRV (Measurement, Reporting, and Verification) jointly with UNFCCC and/or EU.

He graduated from Yonsei University majoring Public Administration and holds a Master’s degree in Development Policy and Public Administration at the University of Wisconsin at Madison. He is co-author of three books including “Carbon Market, Are You Ready to Buy or Sell It.”




Mr. Jean D'Aragon l Senior Sustainable Development Expert

Dr. D’Aragon is the Senior Sustainable Development Expert at the United Nations Officer for Sustainable Development (UNOSD), where he also served as the Officer-in-Charge for 1.5 years in 2019 to 2020. He has 20 years of international development experience in research, policy capacity building, and monitoring and evaluation related to sustainable development in America, Europe, Africa, Asia, and Oceania. Mr. D'Aragon worked at the UN-Habitat headquarters in Nairobi, Kenya and the UN DESA United Nations Centre for Regional Development (UNCRD) in Nagoya, Japan climate change, natural disaster risk and vulnerability reduction, urban planning and governance.

He has also been called upon to undertake assignments as Early Recovery Advisor and Early Recovery National Coordinator with the same and other UN agencies such as UNDP, in various geographical contexts, including disaster-hit regions of the Philippines and Vanuatu or in Cameroon, where he developed and coordinated programmes combining food security and poverty reduction with youth job creation and empowerment, particularly in the Far North Region of Cameroon, which is severely affected by Boko Haram's insurgency, not to mention land use agro-pastoral conflicts, which are exacerbated by increases in drought and flooding associated with the adverse effects of climate change.

Prior to joining the UN, Mr. D'Aragon worked as the Senior Programme Officer at the International Development Research Centre (IDRC - Canada), leading research on the interlinkages between urban poverty reduction, livelihood and food security, access to housing, water and sanitation, solid waste management, environmental protection and resilience building, supporting their integration into territorial planning policies, codes, regulations, plans, and he also taught and lectured in different universities in Brazil, Portugal, France and in Canada, particularly at McGill University, where he has received his doctoral degree.




Ms. Yujeong Kim l Senior Development Management Expert

Ms. Yujeong Kim is the Senior Development Management Expert at the United Nations Office for Sustainable Development (UNOSD). She contributes towards the capacity building of Member States for achievement of Sustainable Development Goals through organizing capacity building events, developing training material, undertaking policy research studies, and building partnerships with various organizations. Prior to joining the UNOSD, Ms. Kim worked as a Senior Specialist at the Ministry of Environment of the Republic of Korea, where she led policy design and implementation on air quality, environmental health, water and climate change. She also served for the President’s Office and the Office for Government Policy Coordination to develop and promote green growth policies. Ms. Kim holds a Master of Public Affairs from Indiana University and a Bachelor of Science in Earth System Sciences from Seoul National University.











Ms. Sara Castro de Hallgren l Programme Management Expert

Sara Castro-Hallgren is the Programme Management Expert at the United Nations Office Sustainable Development (UNOSD) where she contributes to the development and implementation of the substantive work with regard to integrated sustainable development for capacity- of Member States. Sara previously worked with on policy change and strengthening capacity development for SDG 12 - Ensuring Sustainable Consumption and Production patterns, in Asia-Pacific countries, leading policy research, training and cooperation countries such as China, India and more. Sara also focused on behavioral science research to strengthen policy effectiveness for sustainable consumption, founding the Behavioral Insights Research Committee under the Green Growth Knowledge Platform, serving as Co-Chair. Sara started her UN career in 2009 at the United Nations Institute for Training and Research (UNITAR) working on capacity development for strengthening national to local implementation of sustainable with local governments on training and technical cooperation projects in Asia, Latin America, and Eastern Europe. Sara has an M.A. International Development from Erasmus University of Rotterdam's Institute of Social Studies and a B.A. Economics from George Washington University. She is from El Salvador and is married with two daughters.











Ms. Youngeun Choi l Associate Research and Policy Development Expert

Ms. Youngeun Choi is the Associate Research and Policy Development Expert at the United Nations Office for Sustainable Development (UNOSD). She contributes to the development and implementation of the substantive work in the area of the Policy Research. Ms. Choi has about 5-year experience at the Korea Environment Corporation (KECO) in the areas of policy research and monitoring of air quality. One of her works at KECO includes innovation between social value and corporation performance through K-SDGs. Additionally, she has played a role in carrying out policy-making-related tasks and developing partnerships with the Ministry of Environment, Republic of Korea.












Ms. Ilae Kim l Programme Management Assistant

Ms. Ilae Kim is the Programme Management Assistant at the United Nations Office for Sustainable Development (UNOSD) supporting on office planning and implementation of programme. She maintains liaison with international and local partners in regard to office projects and its outreach. As one of the founding members of the office since its launch in 2012, she has contributed to the office administration and the capacity development programs of the office.

Ms. Kim brings diverse cultural and work experiences to the office; having worked with the NGOs in Kenya and Tanzania as the programme manager for youth educative programmes, the United Nations Association of Tanzania as the Communications and PR officer on the Millennium Development Goals projects and the Ministry of Environment of Republic of Korea as an editor on sustainable development policies. Ms. Kim holds a Diploma in Journalism and Mass Communication; B.A in Political Science and Public Administration from University of Dar Salaam, Tanzania; and M.A in International Relations from Kingston University London, UK.












Mr. Huiyong Kim l Team Assistant

Mr. Huiyong Kim is the Team Assistant at the United Nations Office for Sustainable Development (UNOSD) where he performs general administrative and operational functions of UNOSD. He earned B.A in Global Affairs, with the concentration in Global Governance, from George Mason University. Prior to joining UNOSD, he was an Individual Contractor at UNOSD and successfully completed the internships/assistantships at international organizations namely UNOSD, World Health Organization Collaborating Center and Green Climate Fund. Currently, he studies Public Policy at Seoul National University Graduate School of Public Administration.