Beijing BII Technology Development Co., Ltd. (BII-TDBJ) was established on January 17, 2013, and is wholly-owned by Beijing Investment Rail Transit Holdings Limited which is a subsidiary wholly-owned by BII Railway Transportation Technology Holdings Company Limited (BIITT), with the registered capital of RMB 300 million. The Company is mainly engaged in the civil communication business of the Beijing Subway. As a principal investment unit of the civil communication transmission project of Beijing subway (excluding Lines 1, 2, 4, 14 and 16), Beijing BII Technology Development Co., Ltd. commissioned the construction contracting unit to complete the construction of the civil communication transmission works and related support facilities of the Beijing subway, to ensure the synchronous coverage of mobile phone signals when the subway line is put into use. Meanwhile, it also commissioned the operation maintenance unit to be in charge of the daily maintenance of the civil communication transmission equipment of the lines that have been put into operation, to ensure the stable operation of the system. The Company keeps enhancing the civil communications information transmission services, continuously deepens and expands the cooperative operation patterns, and has established a good cooperation relationship with communication operators. At present, the Company has possessed the assets of the civil communication transmission system for 19 Beijing subway lines and 197 stations.
In the background of the information era, BII Technology Development Co., Ltd. will get through all links of the subway information industry value chain by means of the subway civil communication project based on the "smart city" program, and commit ourselves to building an all-round, intelligent and high-quality data platform, in order to provide the high-quality subway mobile communication information transmission services, creating a new rail transit information lifestyle.