Serve: Environmental protection technology、 Technological development of environmental protection equipment、 Technical Services、 Technical Consulting、 Transfer of results, Design of environmental protection projects、 construction, Environmental Engineering Management, sewage treatment projects, Waste gas treatment project, Indoor and outdoor environment、 water quality、 Air quality testing; wholesale、 retail: Environmental protection equipment, Energy-saving equipment, Chemical products( Removal of hazardous chemicals and precursor chemicals), Testing instruments and equipment; Import and export of goods and technology( State Law、Except for items prohibited by administrative regulations, law、 Items restricted by administrative regulations may only be operated after obtaining a license)。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)( The business scope shall be subject to the business scope approved by the company registration authority)。