Staff members are busy sorting express parcels on the conveyor belt at the mail processing center of the Hengyang Postal District Center of China Post Group Co., Ltd. Multiple e-commerce platforms have launched concentrated promotional campaigns since the beginning of this month, bringing a small peak in delivery volume for logistics departments. The center has implemented a rotating shift system to ensure that express parcels will be sorted immediately upon arrival. (Photo/Cao Zhengping and Xu Fang)

Staff members are busy sorting express parcels on the conveyor belt at the mail processing center of the Hengyang Postal District Center of China Post Group Co., Ltd. Multiple e-commerce platforms have launched concentrated promotional campaigns since the beginning of this month, bringing a small peak in delivery volume for logistics departments. The center has implemented a rotating shift system to ensure that express parcels will be sorted immediately upon arrival. (Photo/Cao Zhengping and Xu Fang)

Staff members are busy sorting express parcels on the conveyor belt at the mail processing center of the Hengyang Postal District Center of China Post Group Co., Ltd. Multiple e-commerce platforms have launched concentrated promotional campaigns since the beginning of this month, bringing a small peak in delivery volume for logistics departments. The center has implemented a rotating shift system to ensure that express parcels will be sorted immediately upon arrival. (Photo/Cao Zhengping and Xu Fang)