Kwan On Holdings Limited, an investment holding company, engages in the construction and property development business in Hong Kong and internationally. It operates through Construction, Property Development, and Trading segments. The company offers construction and maintenance works on civil engineering contracts and building works contracts. It undertakes works related to buildings, waterworks, site formation, roads, and drainage services. The company also engages in the provision of contracting work on civil plumbing, fire protection, insulation, concrete repair, and related activities; property holding activities; and provision of construction site workmen services, as well as is involved in the trade of diesel and chemical materials. In addition, it develops and sells residential units, commercial units, and car parking spaces. The company was founded in 1975 and is headquartered in Central and Western, Hong Kong.