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Shanxi Guangyuan Fertilizer Co.,Ltd
Wuhan Chuangdaxin Biotechnology Co., Ltd
Qingdao Oubo Chemical Co., Ltd.
Hubei Cheezheng Energy Development Co., Ltd
Hubei Youshida Technology Co., Ltd.
Alan Chemical Industries Ltd
Weihai Xiangyu Technology Co., Ltd.
Anhui Sinotech Industrial Co., Ltd
Star Grace Mining Co.,Ltd
Anyang Changtai Silicon Industry Co., Ltd.
Shanxi Xinguan Environmental Co., Ltd.
Zhengzhou Boyue Purification Materials Co., Ltd
Hangzhou Jeci Biochem Technology Co .,Ltd.
Jinan Lead Pharm-chemical Co., Ltd.
Ningxia Jinbaoxing Activated Carbon Co., Ltd
Qingdao Oriental Tongxiang International Trading Co.,Ltd