Beijing Haidian District Environmental Sanitation Scientific Research Institute

Chengdu Environmental Sanitation Research Institute

Guangzhou Environmental Sanitation Research Institute

Wuhan Research Institute of Heavy Rain

Beijing Environmental Sanitation Design Science Research Institute

Beijing Environmental Sanitation Engineering scientific Research Institute

Heilongjiang Scientific Research Institute of Environmental Protection

Shanghai Environmental Engineering Design Research Institute

Shenyang Environmental Engineering Design Research Institute

Shenyang Environmental Sanitation Engineering Design Research Institute

The Shanghai Scientific Research Institute of Environmental

Tianjin City Appearance Environmental Engineering Design Research Institute

Urumqi Environmental Scientific Research and Monitoring Centre

Urumqi Environmental Scientific Research Monitoring Central Station

Biogas Scientific Research Institute of the Ministry of Agriculture

Changjiang River Scientific Research Institute

Geologic Scientific Research Institute of Shengli Oil Field Company

Geological Scientific Research Institute of Shengli Oil Field

Geological Scientific Research Institute of Shengli Oilfield