Workers package edible fungus at a modern agricultural industrial base in Siyang County, east China's Jiangsu Province, June 18, 2020. In recent years, Siyang county has been actively developing edible fungus industry and set up a comprehensive industrial system. There are 23 fungus-related enterprises in the modern agricultural industrial base, which can yearly produce about 300,000 tons of edible fungus. (Xinhua/Ji Chunpeng)

Workers package edible fungus at a modern agricultural industrial base in Siyang County, east China's Jiangsu Province, June 18, 2020. In recent years, Siyang county has been actively developing edible fungus industry and set up a comprehensive industrial system. There are 23 fungus-related enterprises in the modern agricultural industrial base, which can yearly produce about 300,000 tons of edible fungus. (Xinhua/Ji Chunpeng)

Workers package edible fungus at a modern agricultural industrial base in Siyang County, east China's Jiangsu Province, June 18, 2020. In recent years, Siyang county has been actively developing edible fungus industry and set up a comprehensive industrial system. There are 23 fungus-related enterprises in the modern agricultural industrial base, which can yearly produce about 300,000 tons of edible fungus. (Xinhua/Ji Chunpeng)

Workers package edible fungus at a modern agricultural industrial base in Siyang County, east China's Jiangsu Province, June 18, 2020. In recent years, Siyang county has been actively developing edible fungus industry and set up a comprehensive industrial system. There are 23 fungus-related enterprises in the modern agricultural industrial base, which can yearly produce about 300,000 tons of edible fungus. (Xinhua/Ji Chunpeng)

Workers package edible fungus at a modern agricultural industrial base in Siyang County, east China's Jiangsu Province, June 18, 2020. In recent years, Siyang county has been actively developing edible fungus industry and set up a comprehensive industrial system. There are 23 fungus-related enterprises in the modern agricultural industrial base, which can yearly produce about 300,000 tons of edible fungus. (Xinhua/Ji Chunpeng)

Workers package edible fungus at a modern agricultural industrial base in Siyang County, east China's Jiangsu Province, June 18, 2020. In recent years, Siyang county has been actively developing edible fungus industry and set up a comprehensive industrial system. There are 23 fungus-related enterprises in the modern agricultural industrial base, which can yearly produce about 300,000 tons of edible fungus. (Xinhua/Ji Chunpeng)

Workers package edible fungus at a modern agricultural industrial base in Siyang County, east China's Jiangsu Province, June 18, 2020. In recent years, Siyang county has been actively developing edible fungus industry and set up a comprehensive industrial system. There are 23 fungus-related enterprises in the modern agricultural industrial base, which can yearly produce about 300,000 tons of edible fungus. (Xinhua/Ji Chunpeng)

Workers package edible fungus at a modern agricultural industrial base in Siyang County, east China's Jiangsu Province, June 18, 2020. In recent years, Siyang county has been actively developing edible fungus industry and set up a comprehensive industrial system. There are 23 fungus-related enterprises in the modern agricultural industrial base, which can yearly produce about 300,000 tons of edible fungus. (Xinhua/Ji Chunpeng)

Workers package edible fungus at a modern agricultural industrial base in Siyang County, east China's Jiangsu Province, June 18, 2020. In recent years, Siyang county has been actively developing edible fungus industry and set up a comprehensive industrial system. There are 23 fungus-related enterprises in the modern agricultural industrial base, which can yearly produce about 300,000 tons of edible fungus. (Xinhua/Ji Chunpeng)