VNET [21Vianet] SC 13D/A: June 30, 2016 The Special Committee of the
[June 30, 2016 The Special Committee of the Board of Directors 21Vianet Group, Inc. M5, 1 Jiuxianqiao East Road Chaoyang District, Beijing Peoples Republic of China Dear Sirs: Re: Withdrawal of the Proposal to Purchase All Issued and Outstanding Shares of the Company Mr. CHEN Sheng, Kingsoft Corporation Limited and Tsinghua Unigroup International Co., Ltd. (the Buyer Group) hereby withdraw] []