Sichuan Tianyi Information System Engineering Co., Ltd was founded in 2000, which specialized in the mobile communication network construction, system integration and agent maintenance engineering company with register capital of RMB 22 million. Our company has Building enterprise construction qualification (level 3) and Communication network system integration (level B). On the one hand, our company has 178 wireless engineering technical staff, who all have 3 years’ experience of 2G/3G network coverage system installation, customer lines access/design and transmission lines construction, on the other hand, we have more than 50 capable teams of project construction. Since 2008, our company has started to install outdoor fiber optic cable, which succeeded in installation of ADSS for more than 5,000 km fiber optic cable.