GSX Techedu, Inc. (GSX) Q4 2019 Results Earnings Conference Call February 18, 2020 8:00 AM ET Company Participants Sandy Qin - Head of Investor Relations Larry Chen - Chairman and CEO Nan Shen - CFO Conference Call Participants Mark Li - Citi Christine Cho - Goldman Sachs Gregory Zhao - Barclays Felix Liu - UBS Alex Xie - Credit Suisse Operator Ladies and gentlemen, thank you for standing by and welcome to the GSX Techedu Fourth Quarter and Fiscal Year 2019 Earnings Conference Call. [Operator Instructions] ...