 BEIJING, April 29, 2021 GLOBE NEWSWIRE -- 21Vianet Group, Inc. Nasdaq: VNET 21Vianet or the Company, a leading carrier- and cloud-neutral Internet data center services provider in China, today announced that it has filed its annual report containing its audited consolidated financial statements on Form 20-F for the fiscal year ended December 31, 2020 with the Securities and Exchange Commission on April 28, 2021 Eastern Time. The annual report can be accessed on 21Vianets investor relations website at The Company will provide hard copies of the annual report, free of charge, to its shareholders and ADS holders upon request. 