China Information Technology Development Limited, an investment holding company, provides system integration and related support services in Hong Kong and the People’s Republic of China. It operates through Provision of IT Infrastructure Solutions and Maintenance Services (IT Solutions and Maintenance); Securities investments; and Rental of Properties segments. The company offers software development, system integration, technical support, and maintenance services; IT infrastructure solutions; and office management services. It is also involved in sale of computer hardware and software; rental of properties; securities trading; big data application activities; provision of telecommunications consultancy, cloud services, managed IT services, support consultancy, and intelligent retail system services; and assets acquisition, and management and consultancy services.