China United Venture Investment Limited 

Cornerstone Financial Holdings Limited, an investment holding company headquartered in Causeway Bay, Hong Kong, was founded in 2004 and manages a diverse business portfolio. A key segment of its operations is digital out-of-home (DOOH) media, with a presence in both Hong Kong and Singapore. This involves the design and installation of flat-panel displays strategically positioned within the elevator lobbies of various office, commercial, and residential properties. By December 31, 2021, its DOOH network had expanded to encompass 1,573 buildings. Beyond its media ventures, the company provides a range of financial services, including securities dealings, brokerage, and margin financing, and also offers advertising and broader media services. Furthermore, Cornerstone Financial Holdings is involved in film development, production, and distribution, as well as the retail of skincare products. The company officially adopted its current name in January 2018, having previously been known as Focus Media Network Limited.