A worker conducts quality control at a sunflower seed company in Wuyuan County, north China's Inner Mongolia Autonomous Region, May 9, 2018. Wuyuan County authorities have expedited industrial upgrades for local sunflower seed enterprises by encouraging export-oriented businesses and standardized planting. The local sunflower seed products are now sold to markets in Europe, North America and the Middle East. (Xinhua/Yu Dongsheng)