Indonesian President Joko Widodo arrives for the plenary session of the 35th Association of Southeast Asian Nations (ASEAN) Summit in Bangkok, Thailand, Nov. 2, 2019. Photo: Xinhua

Brunei's Sultan Haji Hassanal Bolkiah attends the plenary session of the 35th Association of Southeast Asian Nations (ASEAN) Summit in Bangkok, Thailand, Nov. 2, 2019. Photo: Xinhua

Indonesian President Joko Widodo (R) attends the plenary session of the 35th Association of Southeast Asian Nations (ASEAN) Summit in Bangkok, Thailand, Nov. 2, 2019. Photo: Xinhua

Malaysian Prime Minister Mahathir Mohamad (C) arrives for the plenary session of the 35th Association of Southeast Asian Nations (ASEAN) Summit in Bangkok, Thailand, Nov. 2, 2019. Photo: Xinhua

Cambodian Prime Minister Samdech Techo Hun Sen (2nd R) attends the plenary session of the 35th Association of Southeast Asian Nations (ASEAN) Summit in Bangkok, Thailand, Nov. 2, 2019. Photo: Xinhua

Malaysian Prime Minister Mahathir Mohamad (C) and Vietnamese Prime Minister Nguyen Xuan Phuc (2nd L, front) arrive for the plenary session of the 35th Association of Southeast Asian Nations (ASEAN) Summit in Bangkok, Thailand, Nov. 2, 2019. Photo: Xinhua

Singaporean Prime Minister Lee Hsien Loong attends the plenary session of the 35th Association of Southeast Asian Nations (ASEAN) Summit in Bangkok, Thailand, Nov. 2, 2019. Photo: Xinhua

Singaporean Prime Minister Lee Hsien Loong attends the plenary session of the 35th Association of Southeast Asian Nations (ASEAN) Summit in Bangkok, Thailand, Nov. 2, 2019. Photo: Xinhua