Chinese Vice Premier Han Zheng (2nd L), also member of the Standing Committee of the Political Bureau of the Communist Party of China Central Committee, joins a voluntary tree planting activity in the eastern suburbs of Beijing, capital of China, April 2, 2018. Other Chinese leaders including Xi Jinping, Li Keqiang, Li Zhanshu, Wang Yang, Wang Huning, Zhao Leji and Wang Qishan also attended the event. (Xinhua/Wang Ye)