Tianjin Development Holdings Ltd is an investment holding company principally engaged in the supply of electricity, water, heat and thermal power. The Company operates its business through six segments. The Utilities segment engages in distribution of electricity, water, heat and thermal power. The Pharmaceutical segment engages in the manufacture and sale of pharmaceutical products and the provision of pharmaceutical research and development services as well as design, manufacture and printing for pharmaceutical packaging. The Hotel segment provides hotel operation services. The Electrical and Mechanical segment engages in the manufacture and sale of presses, mechanical and hydroelectric equipment as well as large scale pump units. The Port Services segment provides port services including container and cargo handling services. The Elevators and Escalators segment engages in the manufacture and sale of elevators and escalators.