21Vianet Group, Inc. (NASDAQ:VNET) Q4 2019 Results Earnings Conference Call March 4, 2020 8:00 PM ET Company Participants Rene Jiang - Director, IR Alvin Wang - CEO and President Sharon Liu - CFO Conference Call Participants Yang Liu - Morgan Stanley Bora Lee - RBC Capital Markets Edison Lee - Jefferies Arthur Lai - Citi Stella Li - Citigroup Operator Good morning and good evening ladies and gentlemen. Thank you, and welcome to 21Vianet Group's Fourth Quarter 2019 Earnings Conference Call. At this time, all ...