Shandong Xinyicheng Agricultural Technology Co., LTD., formerly known as Shandong Rongheng Fertilizer Co., LTD., is the leading enterprise of fertilizer production and sales in Shandong Province. It has been deep ploughing production technology for more than 30 years and is a subsidiary of Xuzhou Xinyicheng Agricultural Science and Technology Co., LTD and Shandong Hengdeli Fertilizer Science and Technology Co., LTD.