Posters for the fourth China International Import Expo are seen in Shanghai on Oct 29, 2021. [Photo/IC]
Rubbish bins collecting used masks line up to serve guests for the upcoming China International Import Expo in Shanghai on Oct 29, 2021. [Photo/IC]
Posters for the fourth China International Import Expo are seen in Shanghai on Oct 29, 2021. [Photo/IC]
A technician adjusts equipment for the fourth China International Import Expo in Shanghai on Oct 29, 2021. [Photo/Xinhua]
