A Sri Lankan exhibitor introduces Sri Lankan tea to a visitor on The South and Southeast Asia Commodity Expo and Investment Fair (SSACEIF) in Kunming, capital of southwest China's Yunnan Province, June 12, 2019. The fair opened on Wednesday, featuring exhibitors from 74 countries, regions and international organizations. (Xinhua/Jiang Wenyao)

A Pakistani exhibitor cleans exhibits on The South and Southeast Asia Commodity Expo and Investment Fair (SSACEIF) in Kunming, capital of southwest China's Yunnan Province, June 12, 2019. The fair opened on Wednesday, featuring exhibitors from 74 countries, regions and international organizations. (Xinhua/Jiang Wenyao)

Staff members perform to promote tourism products on The South and Southeast Asia Commodity Expo and Investment Fair (SSACEIF) in Kunming, capital of southwest China's Yunnan Province, June 12, 2019. The fair opened on Wednesday, featuring exhibitors from 74 countries, regions and international organizations. (Xinhua/Yang Zongyou)

Exhibitors demonstrate the making of ethnic crafts on The South and Southeast Asia Commodity Expo and Investment Fair (SSACEIF) in Kunming, capital of southwest China's Yunnan Province, June 12, 2019. The fair opened on Wednesday, featuring exhibitors from 74 countries, regions and international organizations. (Xinhua/Yang Zongyou)