Mobile Game Network Dongying Kehong Chemical Co., Ltd. Dongying Kehong Chemical Co., Ltd. is located in Dongying Port Economic Development Zone, Shandong Province, close to the national Dongying Comprehensive Bonded Zone.Dongying City, Shandong Province is the core intersection area and priority development area of the national "Yellow-Blue Economic Development Strategy" and is a national petrochemical industry base. 1 Global website rankings revealed 10 people