Tianjin Development Holdings Limited is an investment holding company. It operates in five segments. Utilities segment distributes electricity, water, heat and thermal power to industrial, commercial and residential customers in the Tianjin Economic and Technological Development Area and the People�s Republic of China. Hotels segment is engaged in the operation of hotels in Hong Kong and Tianjin. Winery segment includes Dynasty Fine Wines Group Limited, which produces and sells winery products. Port Services segment includes Tianjin Port Development Holdings Limited, which provides port services in Tianjin. Elevators and Escalators segment consists of Otis Elevator (China) Investment Company Limited, which manufactures and sells elevators and escalators. Its subsidiaries include Tianjin Heavenly Palace Winery Co., Ltd., Tianjin Tai Kang Industrial Co., Ltd., Tianjin Development Assets Management Co., Ltd. and others.