VNET [21Vianet] 6-K: 20-F 21Vianet Group, Inc. Filed Its Annual Report
[20-F 21Vianet Group, Inc. Filed Its Annual Report on Form 20-F BEIJING, April 12, 2018 (GLOBE NEWSWIRE) 21Vianet Group, Inc. (Nasdaq: VNET) (21Vianet or the Company), a leading carrier-neutral Internet data center services provider in China, today announced that it has filed its annual report ]