A worker checks endive growth at a company in Bazhou, north China's Hebei Province, Jan. 9, 2020. Bazhou has promoted the construction of an organic endive cultivating and processing center with introduction of advanced technologies. The project features no use of chemical fertilizer or pesticides for the whole production process. Its products have been mainly exported to foreign countries like Japan and South Korea through contract farming. (Xinhua/Li Xiaoguo)