Pin Zhou has been our senior vice president since March 2018, after having served as our advisor since March 1, 2015. Mr. Zhou is in charge of sales, strategic investment, human resources, and part of the Company's smart hardware business. Mr. Zhou has more than 18 years of experience in Internet industry, with extensive knowledge in product management and online advertising. Before joining Cheetah Mobile, Mr. Zhou served as the founder and CEO of Quwan.com, an e-commerce company in China. Before that, Mr. Zhou held various managerial positions in Baidu, Herosoft, and Tuopu Software Group. Mr. Zhou received a bachelor's degree in International Finance from Shanxi Institute of Finance and Economics in 1999.