Nanjing Tongchang Environment Tech Co., Ltd. inakhazikitsidwa mu 2018, yomwe ili ku Nanjing, Province la JiangSu, yomwe ili ku Shanghai Economic Circle.Bizinesi yathu yayikulu ndikupanga ndi kugulitsa zida zoyeretsera mpweya ndi madzi ndi zida zake zothandizira.