Thai Prime Minister Prayuth Chan-ocha delivers a speech at the Association of Southeast Asian Nations (ASEAN) Business and Investment Summit (ABIS) 2019 in Bangkok, Thailand, Nov. 2, 2019. (Xinhua/Rachen Sageamsak)

Guests pose for group photos during the Association of Southeast Asian Nations (ASEAN) Business and Investment Summit (ABIS) 2019 in Bangkok, Thailand, Nov. 2, 2019. (Xinhua/Rachen Sageamsak)