A staff member introduces the manufacturing procedures at a tofu plant of Pulmuone in Eumseong-gun of Chungcheongbuk-do, South Korea, Nov. 3, 2020. Pulmuone, a leading food company in South Korea, will be an exhibitor at the third China International Import Expo (CIIE), which will take place from Nov. 5 to 10 in Shanghai. (Xinhua/Wang Jingqiang)