Tengzhou Zhongzheng Chemical Co.,Ltd   Tengzhou Tianshui Bio-Technology Co.,Ltd   Shandong Tengzhou Tianxiang Essence Spice Limited Company   Tengzhou dongxin chemical plant   Tengzhou Jitian Aroma Chemicla Co.,Ltd.   Tengzhou Zhongtai Fine Chemicals Co., Ltd   Tengzhou Aolong Chemical Co., Ltd   Tengzhou Readfine Chemical Co.,Ltd.   Tengzhou Tenglong Chemical Co.,Ltd.   Tengzhou Weiyuan Chemical Co., Ltd.   Tengzhou Jitian Aroma Chemical Co.,Ltd.   tengzhoushi tianhao shengwu kejifazhan co.,ltd   Zhejiang Xianju Tengzhou Chemical Factory   Tengzhou Zhongtai Fine Chemicals Co., Ltd.   Tengzhou Runlong Flavors & Fragrances Co., Ltd.   Tengzhou Xiangyuan Chemical Industrial Co., Ltd.   Tengzhou Aolong Chemical Co., Ltd.   Tengzhou Yinfeng Chemical Co., Ltd.   Tengzhou Jitian Aroma Chemical Co., Ltd.