Liaoyang Tengyuan Food Additive Factory   Yufeng Technology Co.,Ltd   Jinan Yufeng Bioengineering   Jinan Yufeng Bioengineering Co.,Ltd.   Liaoyang Hengye Chemical Co., Ltd.   Tianjin Yufeng Chemical Co.,Ltd   Liaoyang Liaohua Qida Chemicals Co. Ltd   Liaoyang Guoxing Magnesium Co,Ltd   Tianjin yufeng chemical co.,ltd   Liaoyang Wanrong Chemicals Co., Ltd.   TIANJIN LINHAIYUFENG CHEMICALS CO., LTD   TIANJIN YUFENG CHEMICAL CO.,LTD   Liaoyang Yufeng Chemical Co.,ltd    Tianjin Yufeng Chemical Co Ltd   Liaoyang Diol Chemical Co., Ltd.   Liaoyang Dingxin Chemical Co., Ltd   Liaoyang Fuqiang Food Chemical Co., Ltd.   Liaoyang Qingyang Chemical Products Co., Ltd. Meta-Cresol Factory   Liaoyang Jiazhi Industry Co.,Ltd.   liaoyang yutian chemical plant