China CRRC Group, China Energy Conservation and Environmental Protection Group, China Everbright Environment Group, China Three Gorges Group, China Aerospace Group, Baowu Group, CGNPC Environmental Protection Technology Co., Ltd., Xinsu Environmental Protection Industry Group Co., Ltd., Aerospace Kaitian Environmental Protection Technology Co., Ltd., China Shipbuilding Industry Corporation, China Construction Third Bureau Green Industry Investment Co., Ltd., Shanghai Environment Group, Huaneng Group, National Energy Group ...