21Vianet Group, Inc. provided earnings guidance for the second quarter and full year of 2021. For the second quarter of 2021, the company expects net revenues to be in the range of RMB 1,470 million to RMB 1,490 million. For the full year of 2021, the company expects net revenues to be in the range of RMB 6,100 million to RMB 6,300 million.