Beijing Gaobeidian Sewage Treatment Plant
China General Machinery Engineering Co., Ltd.
Beijing HYwings Environmental Technology Co., Ltd.
Beijing Huamei Polymer Co., Ltd.
Tianjin Drainage Co., Ltd.
No.1 Sewage Treatment Plant of Tianjin Economic Development Zone
Wastewater Treatment Plant of Qibu District of Tianjin Free Trade Zone
Sewage Treatment Plant of Tianjin Baodi Economic Development Zone
Chemical Wastewater Treatment Plant of Tianjin Economic Development Zone
Tianjin Capital Environmental Protection
Tianjin Jizhuangzi Sewage Treatment Plant
Tianjin Dongjiao Sewage Treatment Plant
Wastewater Treatment Plant of Tianjin Airports Logistics Industry Zone
Tianjin Tianbao Municipal Engineering Co., Ltd.
Tianjin TEDA Municipal Engineering Co., Ltd.
Tianjin Electromechanical Equipment Installation Co., Ltd.
Tianjin Jingwei Equipment Installation Co., Ltd.
Tianjin Tianshui Environmental Project Engineering Co. , Ltd.
Tianjin Binhai New Area Development& Construction Co., Ltd.
Tianjin Huabao Sewage Treatment Co., Ltd.
Shijiazhuang Municipal Drainage Co., Ltd. of Hebei Province
Wastewater Treatment Plant of Nanpu Economic Development Zone of Tangshan City of Hebei Province
Construction Bureau of Kuancheng Manchu Autonomous County of Hebei Province
Xinle Wastewater Treatment Plant of Hebei Province
Xinle Municipal Government of Hebei Province
Quzhou Wastewater Treatment Co. , Ltd. of Hebei Province
Huailai West Beijing Jieyuan Wastewater Treatment Plant of Hebei Province
No.1 Wastewater Treatment Co. Ltd. of Xuning County of Hebei Province
Daying Wastewater Treatment of Zaoqiang County of Hebei Province
Municipal Engineering Co. Ltd of Yangyuan County of Hebei Province
Water Supply Company of Wanquan County of Hebei Province
Blue Sky Wastewater Treatment Co. Ltd of Jize County of Hebei Province
Black River Water Supply and Drainage Headquarter of Helongjiang Province
No.3 Sewage Treatment Plant of Xi’an City of Shaanxi Province
Urumuqi Hedong Chuangwei Water Utility Co., Ltd. of Xinjiang Uygur Autonomous Region
Kuitun Construction Bureau of Xinjiang Uygur Autonomous Region
Sewage Treatment Plant of Shizuishan City of NingXia Hui Autonomous Region
Sewage Treatment Plant of Zhongning County of NingXia Hui Autonomous Region
Capital Water Co. Ltd. of Guizhou Province
Sewage Treatment Plant of Shangqiu City of Henan Province
Capital Water Co., Ltd. of Chibi City of Hubei Province
Capital Water Co., Ltd. of Honghu City of Hubei Province
Shahe Sewage Treatment Plant of Yichang City of Hubei Province