GAOYI ZHENGTONG AUXILIARY FACTORY   Shouguang City Songchuan Industrial Additives Co.,Ltd   Shouguang Puer Chemical CO.,LTD.   Shouguang Nuomeng Chemical Co.,Ltd   Shouguang Huinuo Pharmchem Co., Ltd.   QINGDAO ANXINHENGTONG IMPORT AND EXPORT CO., LTD   Tianjin century hengtong import&export co., Ltd   Shouguang Jinlei Chemical Co.,Ltd   shouguang xuexiang chemical Co.,LTD   shouguang fukang pharmaceutical co.,ltd   Hebei Hengtong Import & Export Group Limited   Hebei Hengtong Import & Export Group Limited   wuhan shengtong jinde chemical co.,ltd   Shouguang Zixu Chemical Co., Ltd.   Shouguang Zixu Chemical Co., Ltd   Shouguang Haogang Chemical Co.,ltd   Shouguang Tianchuang chemical co. ltd   Shouguang City songchuan Industrial Additives Co.,Ltd.   Shouguang Hotitol Co., Ltd.   Shandong Shouguang Shenrunfa Ocean chemical industry co. LTD