Rongzun International Group Limited 

B & D Strategic Holdings Limited, an investment holding company, operates as a contractor that specializes in alteration and addition, and civil engineering works in Hong Kong. Its alteration and addition works include new structural works, fitting-out works, changes in facilities configuration, constructing a new extension to existing buildings, and conversion of an existing buildings to various types. The company's civil engineering works comprise site formation and foundation works, as well as provides administrative services. It primarily serves property asset management companies, property developers, and contractors. The company was founded in 1995 and is headquartered in Kwai Chung, Hong Kong.