Cheetah Mobile is a leading mobile internet company. It aims to provide leading apps for mobile users worldwide and connect users with personalized content on the mobile platform. Cheetah Mobile's products, including its popular mission-critical utility applications Clean Master, CM Security and Battery Doctor, help make users'? mobile internet experience smarter, speedier, and safer. The Company has attracted 603 million global Mobile MAUs as of March 2017, of which 78.8% are located outside of China. Leveraging the success of its mission-critical applications, Cheetah Mobile has launched its line of mobile content-driven applications, including News Republic and Live.me. Cheetah Mobile provides its advertising customers, which include direct advertisers and mobile advertising networks through which advertisers place their advertisements, with direct access to highly targeted mobile users and global promotional channels, which are capable of delivering targeted content to hundreds of millions of users.