Reliable. According to relevant public information, Shanghai Jiucheng Communication Technology Co., Ltd. was established on April 4, 2003, registered in Shanghai Jinqiao Economic Development Zone, and its legal representative is Chen Yajie. The business scope includes computer network system integration, sales of communication equipment, computers and accessories, metal materials, "four technologies" services in the field of computer and communication network software development, and acting as an agent for related businesses authorized by Shanghai Cable Network and Shanghai Netcom. Projects that must be approved according to law can only be operated after being approved by relevant departments, and have now started business.