China Nanhai Engineering Co., Ltd. is a limited liability company approved by the relevant state departments and established by the overall restructuring of China Chemical Engineering Shenzhen Company. It has a first-class qualification certificate for general contracting of chemical and petroleum engineering, general contracting of housing construction engineering, professional contracting of steel structure engineering, professional contracting of fire-fighting facilities engineering, professional contracting of electromechanical equipment installation engineering and professional contracting of chemical and petroleum equipment pipeline installation engineering; Qualification certificate for foreign contracted projects; Grade A design certificate of construction engineering in chemical, petrochemical, pharmaceutical and construction industries; License for installation, modification and maintenance of special equipment (boilers and pressure pipes); Safety production license; Shenzhen environmental protection qualification certificate; Has passed the quality, environment, occupational health and safety management system certification.