UANGEL Corp. engages in the development and supply of intelligent network and smart financial services, messaging, overseas ringback tone, children education smart learning, and others. It operates through the following business areas: Mobile core network solutions, Network virtualization, Messaging, Authentication, charging and quality of service seasonal control, Internet of things, Smart running, and Convergence service platform. The company was founded on July 14, 1999 and is headquartered in Seongnam-si, South Korea.