Yue Zhong Li

Elex AG is a Swiss family company that has been focusing on flue gas cleaning for over 80 years. The private company is based in Switzerland and have subsidiaries in other locations. The company provides advice and expertise on expanding filter systems, optimizing flue gas cleaning, and acquiring electrical filters. The company also offers numerical flow simulations to calculate and optimize systems, retrofit and upgrade services to enlarge systems or observe stricter limit values, and troubleshooting services for system faults. Elex is considered the market leader in flue gas cleaning and has over 2000 customers worldwide.

Changzhou Deze Industrial Investment Co. Ltd. operates as an investment holding Chinese company.

Part of Guangzhou Anhui Environmental Protection Technology Co. Ltd., Guangzhou Welle Environmental Protection Technology Co. Ltd. manufactures environmental protection technology. The private company is based in Guangzhou, China.

Beijing Huiheng Environmental Protection Engineering Co., Ltd. engages in the urban domestic sewage, industrial wastewater and park wastewater treatment and water reuse through membrane bioreactor technology. The company was founded in February 20, 2003 and is headquartered in Beijing, China.