5.6 kilometers. Junan Dongda Coal Industry Co., Ltd. is located in the north of Junan Station of Yanshi Railway, covering an area of 70,000 square meters. It has two special railway lines with a total length of 5.6 kilometers, which can accommodate 5 1 truck at a time. Junan County, which belongs to Linyi City, Shandong Province, is located at the junction of Su Ru in the southeast of Shandong Province, adjacent to Lingang Industrial Zone in Linyi City in the east and Lianyungang City in Jiangsu Province in the south.