ASIA ALLIED INFRASTRUCTURE HOLDINGS LIMITED, formerly China City Construction Group Holdings Limited, is a Hong Kong-based investment holding company principally engaged in construction engineering businesses. The Company operates through three segments. Construction Work segment is engaged in the provision of civil engineering, electrical and mechanical engineering, as well as foundation and building construction services. Property Development and Investment segment is mainly engaged in the development, sales and leasing of residential and commercial properties. Professional Services segment is engaged in the provision of security, cleaning and other property management-related services.