Who are attending Hangzhou G20?
President Bounnhang Vorachit of Laos
Laos' Communist Party General Secretary and President Bounnhang Vorachit (L) and Vietnam's Communist Party General Secretary Nguyen Phu Trong wave their hands to school children while they walk inside the garden of the Presidential Palace, after a welcoming ceremony in Hanoi, Vietnam April 25, 2016. [Photo/Agencies]