A staff member works at a warehouse in Qingdao, east China's Shandong Province, Jan. 28, 2023. Factories and companies across China resumed work after the Spring Festival holiday. (Photo by Liu Qiang/Xinhua)

Staff members work at a workshop of an auto manufacturing enterprise in Jimo District of Qingdao, east China's Shandong Province, Jan. 28, 2023. Factories and companies across China resumed work after the Spring Festival holiday. (Photo by Liang Xiaopeng/Xinhua)

A staff member works at a workshop in Lin'an District of Hangzhou, east China's Zhejiang Province, Jan. 28, 2023. Factories and companies across China resumed work after the Spring Festival holiday. (Photo by Hu Jianhuan/Xinhua)

Staff members work at a workshop of an auto manufacturing enterprise in Qingdao, east China's Shandong Province, Jan. 28, 2023. Factories and companies across China resumed work after the Spring Festival holiday. (Photo by Zhang Jingang/Xinhua)