Rongzun International Holdings Group Ltd is an investment holding company principally engaged in alteration and addition works and civil engineering works. The Company operates its business through two egments. Alteration and Addition Works segment is engaged in provision of services on alternation and addition works include 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, or installation of hardware and equipment; erection, relocation, or removal of partitions, doors, and windows; changes in type of finishes and flooring materials. Civil Engineering Works segment is engaged in provision of civil engineering works generally include site formation works and foundation works.