21Vianet Group, Inc. (NASDAQ:VNET) Q2 2019 Earnings Conference Call August 19, 2019 8:00 PM ET Company Participants Rene Jiang - Investor Relations Alvin Wang - Chief Executive Officer and President Sharon Liu - Chief Financial Officer Conference Call Participants Yang Liu - Morgan Stanley Rex Wu - Jefferies Stella Li - Citi Operator Good morning and good evening ladies and gentlemen. Thank you and welcome to 21Vianet Group's Second Quarter 2019 Earnings Conference Call. At this time, all participants are ...