Sunlands Technology Group (NYSE:STG) Q4 2018 Results Conference Call March 22, 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 Operator Ladies and gentlemen, thank you for standing by and welcome to Sunlands Fourth Quarter and Full Year 2018 Earnings Conference Call. At this time, all participants are in a listen-only mode. After prepared remarks by the management team, there will be a question-and ...