DAEA TI Co., Ltd. is a Korea-based company engaged in the development and provision of railway signal control systems. The Company operates in two business segments: railway signal control system segment and Internet advertising segment. Its railway signal control system segment provides centralized traffic control (CTC) systems, communication-based train control (CBTC) systems, automatic train control (ATC) systems and information and communication (I&C) devices, as well as design and supervision of railway signal engineering. Its Internet advertising segment provides online advertising services. It also engages in the real estate rental business. The Company distributes its product within domestic market and to overseas markets. On August 26, 2014, the Company acquired a 100% stake in VINET.