China Transport Development Corporation (Beijing) (CTDC) is a corporation established under the auspices of the Central Committee of the CCYL and with the support of several major groups in China.

• 中汽国投交通技术(北京)有限公司 是由在中国安防及监控行业具有多年经验的几大中国集团及其股东投资并在国家相关部门指导下注册成立的法人合作公司。