CSI Properties Limited, an investment holding company, engages in property development and investment activities in Hong Kong, the People's Republic of China, and Macau. The company operates through four segments: Commercial Property Holding, Residential Property Holding, Macau Property Holding, and Securities Investment. It is also involved in securities trading and investment activities; treasury management business; issuing bonds; sale of securities; property holding and leasing; provision of property management services; and trades and invests in commercial and residential properties. The company was incorporated in 1991 and is headquartered in Central, Hong Kong.