CITYNET Secretariat

The CITYNET Secretariat manages the programs and institutional activities of the network. With the support and engagement of members, the Secretariat promotes the CITYNET mission of increasing connections and building capacity across cities in the Asia-Pacific.

After over two decades of success and growth in Yokohama, Japan, 2013 marks the CITYNET Secretariat’s relocation to Seoul, South Korea. With this move comes new partnerships, innovative urban collaboration and an even greater network of knowledge and best practices.

Even with a new location, the mission remains the same. The CITYNET Secretariat pledges to work side-by-side with over 130 members and partners throughout the Asia Pacific region. With each member city and organization, we will continue to highlight and share successes while tackling challenges standing in the way of urban development.

As the Asia-Pacific region grows in economic, environmental, and technological importance, CITYNET is propelling cities toward the goal of urban sustainability, resilience and inclusivity.

Secretariat Team

VijayVijay Jagannathan – Secretary General
Vijay Jagannathan comes from the World Bank where he was Sector Manager for infrastructure in the East Asia and Pacific region. He was responsible for an annual lending program of about $5 billion in the urban, water, transport and energy sectors. Vijay has been also associated with the APEC-led green growth and green finance initiatives. He has worked in the infrastructure, environment and urban development sectors in his twenty four years in the Bank. Prior to that he spent 10 years in Indian Administrative Service. Vijay is an economist by training, with a PhD from Boston University. His dissertation on the informal markets for the poor was published by Oxford University Press in 1987 and recognized as one of the “Outstanding Academic Books of the Year” by the American Library Association. He has published extensively on water, urban development, agricultural development and environmental issues. Vijay currently serves as a Senior Fellow at the World Resources Institute, and has been a consultant with the Green Climate Fund. He is a member of the United Nations Sustainable Development Group for Urban Issues, and is working closely with the New Climate Economy initiative. He is advising the China Council for International Cooperation on Climate and Development (CCICED) in its Special Policy Study on “Good City Models under the Concept of Ecological Civilization.” Vijay was elected as Secretary General of CITYNET at the 2013 CITYNET Seoul Congress. He can be reached at vijay(at)

Dr. Gyeng Chul Kim – Deputy Secretary General
Dr. Gyeng Chul Kim served as a president of the Korea Transport Institute (KOTI) from 2011 to 2014. He received his PhD in Transport Planning and Administration at Seoul National University in 1993. His career in transport policies and management spans nearly two decades with engagement in both the public and private sectors with specific interests in public transport, such as subways and buses. He serves as a member of the Transport Committee of Seoul Metropolitan Government as well as the Committee for Rail Division of the Board of Audit and Inspection. Additionally, Dr. Kim currently heads the Public Transport Committee of Korea Transportation Research Society. Dr. Kim is also a former Director of the Department of Urban Transit in Seoul Development Institute (SDI). Dr. Kim has long been an advocate and supporter of CITYNET, and has served as Deputy Secretary General since 2009.

cropped headshotAisa Tobing – Deputy Secretary General
Aisa Tobing is a City Planner and Senior Advisor to the Governor of Jakarta. She serves as the Chairman of the Climate Change Task Force for Jakarta and as an Expert Staff for Urban and Environmental Management. Aisa has worked for Jakarta Capital City Government since 1977. During this time, she was appointed to lead several agencies within the administration, including serving as the Director of the International Cooperation Bureau, the Director of Information Technology and Communications Management Office, as well as Head of the Environmental Management Division. Aisa received her Bachelor’s degree in City Planning from Bandung Institute of Technology and her Masters from University of Pennsylvania. A strong supporter of sustainable urban development, Aisa Tobing currently serves as a Deputy Secretary General of CITYNET.

ASG Lee, Hoi SeungLee, Hoi Seung – Assistant Secretary General
Lee, Hoi Seung serves as Assistant Secretary General at CityNet while heading the International Cooperation Bureau of Seoul Metropolitan Government (SMG) as Director General. Mr. Lee studied Public Administration at University of Seoul. He has devoted for SMG almost 25 years and has since accompanied the city of Seoul on its way to becoming a major force in East Asia. As Assistant Secretary General, Mr. Lee oversees the management and operation of the CityNet Secretariat and its projects and programs. Simultaneously, as General Director of the International Relations Bureau of SMG, he works closely with both CityNet and SMG to facilitate the relationship between Seoul and CityNet member cities.

youngmin150Youngmin Chang
– Director of Programs
Youngmin Chang is the Director of Programs and develops overall programs at CityNet along with the institutional strategy to engage businesses, community groups, and multilateral institutions as strategic partners in identifying practical solutions for sustainable cities. Before she joined CityNet, she had worked for ten years as the Associate Director of a non-profit organization, International Action, in Washington, D.C., which she co-founded and serves as a board member. She was honored to be selected as one of the 40 Under 40 professionals on urban land use by the Urban Land Institute in 2014. She sits on Cities Development Initiative for Asia Stakeholders Forum Expert Group and has led CityNet to be elected to be an Operation Committee Member of Development Alliance Korea. She received her Master’s in International Relations from the University of Virginia. She can be reached at ychang(at)

Taegyun GiTaegyun Gi – Director of Operations
Taegyun Gi has been working for the Seoul Metropolitan Government(SMG) since beginning of 2000 and recently dispatched to CityNet as Director of Operations as of January 2016. He has extensive administrative experiences in various fields of SMG, the Cultural Policy Division, the Budget Divistion, Local Autonomy Administration Division, Hangang(Han River) Projects Headquarter and so forth. He most recently has been responsible for building and strengthening cooperation between cities of Americas & Europes and SMG as a deputy director of the International Relations Division. He brings his experiences in administration and supports to CityNet, where he is in charge of the management, accounting, finance and human resouces of the Seoul Secretariat. Mr. Gi can be reached at dir.operations(at)

Stephani WidoriniStephani Widorini – Senior Program Officer
Stephani’s background is in media and journalism. Prior to joining Citynet she worked with the BBC to produce and present news and current affairs for radio and online as well as distribute them to other various outlets within the BBC Global News. She covered a variety of issues from socio-politics to business and feature stories. She graduated with BA in International Relations from Airlangga University in Surabaya and completed her master in Transnational Communications and Global Media at Goldsmiths College, University of London. She can be reached at media(at)

Jaeyoo Hyeon – Program Officer
At age 21, Jaeyoo moved to Lampang, Thailand to teach multimedia science at a local University as a KOICA overseas volunteer and received her MBA in finance and strategy management at Sasin Graduate Institute of Business Administration of Chulalongkorn University in Bangkok on a KOICA WFK scholarship. In Korea, she had assisted in organizing capacity building workshops and conferences such as the 2013 CityNet Seoul Congress and the Metropolis International Training Institute Opening forum. With a background in IT, media and international program management, she brings her talents to CityNet following previous positions with KOICA, television network, and Metropolis International Training Institute. At CityNet she manages website, publication and capacity building programs. She is a doctoral student of sustainable management at the Inha University. She can be reached at communication(at)

Felix Kalkowsky – Program Officer
Felix has a background in urban planning and climate change. Previously, as climate change mitigation manager in Germany, he worked together with various entrepreneurs from the private and public sectors to implement strategies for climate change mitigation at the municipal level. Felix lectured on “Concepts of Sustainable Urban Development” to undergraduate students. He worked for local governments, universities, on EU-funded projects and for organizations including the United Nations. Felix graduated with BSc and MSc in Urban Planning at the HafenCity University of Hamburg, Germany. He can be reached at programs1(at)

Jaime Paulo Mora – Program Officer
Prior to working in Citynet, Jaime Paulo Mora spent ten years working in a national local government association based in Manila, Philippines. He held various supervisory positions in both regular and foreign-assisted programs and projects that focused on urban development. Some of these include public procurement, disaster risk and resilience, local health development and localizing Millennium Development Goals/ Sustainable Development Goals. He graduated with a journalism degree at the University of Santo Tomas. Mr. Mora has a professional background in development communications, public advocacy, local governance, and urban sociology. In the Citynet, among other tasks, he manages the Citynet Services Program and provides membership services to Philippines and Fiji Citynet members. He can be reached at programs2(at)

Jae Hyun ParkJae Hyun Park– Program Officer
Jae Hyun has a background in International Relations and Comparative Political Science. Prior to joining CityNet he worked with United Nations Office for Project Services (UNOPS) in Myanmar, where he worked together with local partners to improve healthcare quality and access in a conflict sensitive region. Jae Hyun graduated with a Hon. BA in International Relations at the University of Toronto, and received an MSc. in Conflict Studies at the London School of Economics and Political Science, developing research expertise in East Asian issues, political economy and internal conflicts. At CityNet Jae Hyun manages the Urban SDG Knowledge Platform project and connecting CityNet with partners at an international level to develop new projects for CityNet. Jae Hyun can be reached at jaehyun(at)

Hyo Shin LeeHyo Shin Lee – Operations Officer
Hyoshin Lee is in charge of personnel of the Secretariat and membership management of CityNet. Before she joined CityNet, she has worked at Seoul Metropolitan Government and Yongsan District as a civil official for 9 years, and also has a background of working as an administrative assistant at a law firm. She studied International Office Management and Business Administration at Ewha Womans University. She can be reached at operations1(at)

Na Kyong JungKyongjung Na – Financial Specialist
Kyongjung Na works to manage accounting and financial tasks as part of the Operations team. She has worked at Japanese cosmetic company in the oversea-sales department in Tokyo from 2011 to 2012. She also served as an accountant at Shima Seiki Korea. She specilaizes in Japanese and Accounting. Ms. Na can be reached at accounting(at)

wasonWason Lee Huynh – Program Consultant
Wason is experienced in both Private and Public sector, from the Global Green Growth Institute expanding membership and initiating programs in LDC countries in the Country Planning and Implementation Division to Business Strategy and Development for a Fintech Start-up Venture and expanding the business of e-commerce mobile applications at SKPlanet. Wason’s primary focus at CityNet will be managing the 2017 CityNet Congress and supporting the development of new projects and programs. He can be reached at citynetcongress2017(at)