Guannan is the southernmost county of Lianyungang. With 25% of its whole area being waters, Guannan is known as “Green Water New City in Northern Jiangsu” and “Town of Poplar”. Guannan has long been famous for its spirit production. There is a poem praising Tanggou, a famous brand of spirit. It reads “as soon as you open a bottle of Tanggou, its fragrance could spread as far as ten miles away”. The industrial edible fungus plants density is at the first place in the country. Guannan has obtained titles including the state-level ecological demonstration zone, the national safety-building advanced county and the national edible fungus industrial development demonstration county.