Visitors shop at the "Belt and Road" exhibition area of the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, south China's Guangxi Zhuang Autonomous Region, Nov. 27, 2020. The 17th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off on Friday, highlighting booming digital economy cooperation and the implementation of a recently signed major trade pact. (Xinhua/Lu Boan)

An exhibitor sells goods at the "Belt and Road" exhibition area of the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, south China's Guangxi Zhuang Autonomous Region, Nov. 27, 2020. The 17th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off on Friday, highlighting booming digital economy cooperation and the implementation of a recently signed major trade pact. (Xinhua/Zhang Ailin)

Visitors shop at the "Belt and Road" exhibition area of the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, south China's Guangxi Zhuang Autonomous Region, Nov. 27, 2020. The 17th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off on Friday, highlighting booming digital economy cooperation and the implementation of a recently signed major trade pact. (Xinhua/Zhang Ailin)

A visitor (1st L) buys a teapot at the "Belt and Road" exhibition area of the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, south China's Guangxi Zhuang Autonomous Region, Nov. 27, 2020. The 17th China-ASEAN Expo and China-ASEAN Business and Investment Summit kicked off on Friday, highlighting booming digital economy cooperation and the implementation of a recently signed major trade pact. (Xinhua/Zhang Ailin)