VNET [21Vianet] SC 13G/A: Joint Filing Agreement 13d-1(k) In accordance with Rule
[Joint Filing Agreement 13d-1(k) In accordance with Rule [Remainder of this page has been left intentionally blank.] 1 Sheng Chen Sheng Chen Fast Horse Technology Limited Sunrise Corporate Holding Ltd. Personal Group Limited Beacon Capital Group Inc.] [1 Name Of Reporting Person Sheng Chen 2 Check th]