CSCEC promotes green development by leveraging its expertise to advance wastewater treatment and environmental protection, strengthening its presence in the environmental sector.

For example, the Stung Treng Wastewater and Drainage Subproject in Cambodia includes a 46,800-square-meter wastewater treatment plant with a daily capacity of 2,900 cubic meters, along with three primary sewage pumping stations. Once completed, it will significantly improve local environmental management and support the city's sustainable development.