The Group's Luanda Engineering Co., Ltd. and Dongguan Jiapengda Construction Engineering Co., Ltd. have a number of Engineering qualifications, including: highway traffic engineering (highway mechanical and electrical engineering sub-project) professional contract grade; highway traffic engineering (highway safety facilities sub-project) professional contract grade; municipal public works construction general contract Grade I; General Contracting Grade I for Building Construction; Professional Contracting Grade I for Foundation Engineering; Professional Contracting Grade I for Building Decoration and Decoration Engineering; Professional Contracting Grade I for Urban and Road Lighting Engineering; Grade III for General Contracting for Water Conservancy and Hydropower Engineering.