Yau Lee Holdings Limited, an investment holding company, engages in the construction business in Hong Kong, Macau, Singapore, and Mainland China. The company operates through Construction, Electrical and Mechanical Installation, Building Materials Supply, Property Investment and Development, and Hotel Operations segments. It contracts for various private developers and government institutions; and constructs resorts, hotels, and residential buildings. The company also provides architectural and engineering, theme painting, curtain wall and steel work, plumbing and drainage, GRC, GRG, GRP, and construction IT services. In addition, it offers construction IT services, including software development, project management, system development, and integration and IT outsourcing services. Further, the company trades in construction and building materials; provides a range of import/export services, such as applying for certificate of origin and 3C, cargo insurance agency, prepayment of import/export tax and charges, etc.; and invests in, develops, and operates residential, commercial, and industrial properties. Additionally, it offers building information modeling, and other virtual design and construction; electrical, mechanical, ventilation and air conditioning, fire, plumbing, and environmental engineering; energy optimization and environmental protection; water treatment; project management and consultancy; hotel management; patent licensing; and training services. The company is also involved in the design, installation, maintenance, renovation, and fitting-out of buildings; environmental protection related software and programming activities; manufacture and sale of precast products and building materials; distribution of books; provision of welding services for pipes and fillings, and lift repair and maintenance services; and trading of environmental technology products. Yau Lee Holdings Limited was founded in 1958 and is headquartered in Kowloon Bay, Hong Kong.