Rongzun International Holdings Group Ltd. is an investment company, which engages in the provision of infrastructure services. It operates through Alteration and Addition Works, and Civil Engineering Works segments. The Alterattion and Addition Works segment includes new structural works, fitting-out works, changes in facilities configuration, constructing a new extension to existing building, conversion of an existing building to different types, fabrication, modification, removal, installation of hardware and equipment; erection, relocation, removal of partitions, doors and windows; changes in type of finishes and flooring materials. The Civil Engineering Works segment refers to formation works, and foundation works such as site clearance, site formation, and substructure works. The company was founded on April 24, 2018 and is headquartered in Hong Kong.