Ningxia Jiafeng chemicals   Ningxia Biyuan Activated Carbon Co.,Ltd   Ningxia Huiheng activated carbon Sales Co. Ltd.   NINGXIA UNION-SURE CO., LTD   Ningxiang Xinyang Chemical Co., Ltd   TaiRui Ningxia Pharmaceutical Co., Ltd.   Ningxiang Xinyang Chemical Co., Ltd.   Ningxia Hongyan International Trade Co.,Ltd   Hunan Ningxiang Jiweixin Metal Powder Co., Ltd.   Ningxia Beilite Chemical Co., LTD.   Ningxia Hengrui Biotechnology Co., Ltd.   Jinan Zhengyuan Aluminum Industry Co., Ltd   Ningxia Mineral & Chemical Limited   NINGXIA PINGLUO BAOMA CHEMICAL CASTING CO., LTD.   Hunan Ningxiang Jiweixin Metal Powder Co., Ltd.   Ningxiang Xinyang Chemical Co., Ltd.,    NIngxia Beilite Chemical Industry Co., Ltd   Xuzhou Yizhengyuan Cahemicals Product Co.,Ltd   Xuzhou Yizhengyuan Chemical Technology Co.,Ltd   Ningxia Medical University