Sunlands Technology Group (NYSE:STG) Q1 2019 Earnings Conference Call May 28, 2019 7:30 AM ET Company Participants Yingying Liu - IR, Director Tongbo Liu - CEO Steven Yipeng Li - CFO Conference Call Participants Alex Xie - Credit Suisse Timothy Zhao - Goldman Sachs Operator Ladies and gentlemen, thank you for standing by and welcome to Sunlands' First Quarter 2019 Earnings Conference Call. At this time, all participants are in a listen-only mode. After prepared remarks by the management team, there will be ...