21Vianet Group (NASDAQ:VNET) Q4 2018 Earnings Conference Call March 4, 2019 8:00 PM ET Company Participants Rene Jiang - IR Alvin Wang - CEO and President Sharon Liu - CFO Conference Call Participants Rex Wu - Jefferies Stella Li - Citi Yang Liu - Morgan Stanley Operator Good morning, and good evening, ladies and gentleman. Thank you, and welcome to 21Vianet Group's Fourth Quarter and Full Year 2018 Earnings Conference Call. At this time, all participants are in a listen-only mode. We will be hosting a que ...