Yan Zhuang

Shanghai Fucheng Environmental Protection Engineering Co., Ltd. is a holding company, which provides environmental protection services. It designs and manufactures water treatment facilities. It offers installation, operation and maintenance of environment protection facilities and equipment services to buildings including office buildings and hotels. Its services include recreational and reclaimed water treatment, air pollution and dust control, and central air-conditioning refrigeration. The company was founded in 1997 and is headquartered in Shanghai, China.

Shanghai Tongji Environment Engineering Technology Co., Ltd. engages in the investment, operation, and service integration in the field of comprehensive environmental management. Its products and services include sludge treatment, wastewater treatment, municipal sewage investment & operation, large-scale sewage emergency treatment systems, VOCs governance technology, and water treatment technology. The company was founded on May 20, 1986 and is headquartered in Shanghai, China.