CSI Properties Limited, an investment holding company, engages in the property development, leasing, and investment activities in Hong Kong, Macau, and China. It operates through four segments: Commercial Property Holding, Residential Property Holding, Macau Property Holding, and Securities Investment. The company is involved in the investment and trading of commercial and residential properties and properties, as well as securities trading and investment activities. It also offers treasury management; management; property holding and leasing; and property management services, as well as issues bonds and sells securities. The company was incorporated in 1991 and is headquartered in Central, Hong Kong.