feixian county. According to the investigation of Aiqi, Dingjiafang earth-pressed peanut oil is produced and wholesaled by Dingjia Oil Mill in Feixian County, which is located in an enterprise near Gaoshantou Village, Shijing Town, Feixian County, Linyi City, Shandong Province, and its business scope is general projects, peanut oil processing and retail (except for projects that must be approved according to law, it can independently carry out business activities according to law with its business license).