Lei Zhang

Yeecall Interactive Beijing Technology Co. Ltd. operates a cross-platform mobile app that provides internet calling services with HD video and voice technology. The company is based in Beijing, China and was founded in 2014 by Lei Zhang and Jia Jun Xu. The app also offers real-time photo and blackboard sharing services.

Tapas Mobile Technology Co., Ltd. develops mobile applications. It focuses on providing integral solution to mobile internet devices, integrated cloud solution and service. The company products include Tapas Smart Operation System, Tapas APP and Tapas Cloud Service. Its services include multi-screen support, 3D graphic engine, carrier requirements, customizable UI framework, low power consumption, security framework and cloud service. Tapas Mobile Technology was founded in August 2010 by Lei Zhang and is headquartered in Beijing, China.

Baidu (China) Co., Ltd. provides investment management services. Its services include marketing, management, staff management, research and development technology, information technology, and design and advertising. The company was founded on June 6, 2005 and is headquartered in Shanghai, China.