Under the motto of "Building a pleasant environment" , Green E&C focuses on environmental protection in order to enhance the quality of life by participating in the design and construction of wastewater and sewage treatment plants and by providing advanced processing technologies for the reduction of eutrophication.

Since its establishment, Green E&C has endeavored to develop new technologies that are both efficient and economic. By participating in diverse research activities such as research projects with universities, research projects for environmental technology development (G-7), patent technology evaluation projects, technology development projects for industrial infrastructure and others, the company successfully developed technologies and equipment for treating pollutants including the treatment facility for used florescent lights (listed below), and the DeNiPho and PhlCD systems were designated as novel environmental technologies.Also, the company applied for and registered more than 70 patents in Korea and other countries, and submitted about 20 research papers including "Nutrient removal in municipal wastewater by phased isolation intrachannel clarifier ditch"(IWA) for publication on various academic journals.

As a result of such efforts, the company was designated as a model company for technology development, as an excellent company, and as an innovative business (INNO-BIZ, A Level) By focusing on commercializing the processes and equipment, which are the fruits of research and development activities, the company contributed to the protection of water resources by applying its technologies to wastewater and sewage treatment.