The Hub with Wang Guan talks to Young Global Leaders and discusses their contributions. Mariah Levin, Head of the Forum of Young Global Leaders, tells Wang Guan that YGL are driving positive change in the world. In the panel discussion, Sun Lei, Chief Marketing Officer and Founding Partner at Yatsen Global; Bolor-Erdene Battsengel, State Secretary of the Ministry of Digital Development of Mongolia;  Ng Wai-Lung, Assistant Professor at the School of Pharmacy at the Chinese University of Hong Kong; and Yan Luhui, founder and CEO of Carbonstop, explain what keeps them going.