[EXECUTION VERSION PARTICIPATION RIGHTS AGREEMENT dated as of January 15, 2015 between 21VIANET GROUP, INC. and ESTA INVESTMENTS PTE. LTD. TABLE OF CONTENTS ____________________________________ ARTICLE 1 Definitions . Definitions. Section 1.01 1 . Other Definitional and Interpretative Provisions. Section 1.02 4 ARTICLE 2 Participation Rights . Participation Rights Section 2.01 4 ARTICLE 3 Certain Covenants and Agreements Public Announcements Section] []

[EXECUTION VERSION PURCHASE AGREEMENT dated as of December 1, 2014 between 21VIANET GROUP, INC. and ESTA INVESTMENTS PTE. LTD. TABLE OF CONTENTS ARTICLE 1 Definitions . Definitions Section 1.01 1 . Other Definitional And Interpretive Provisions Section 1.02 5 ARTICLE 2 Sale And Purchase Of The Sale Shares . Agreement to Sell and Purchase Section 2.01 6 . Closing Section] [(Name of Issuer) American Depositary Shares, each representing six Class A ordinary shares, par value US$0.00001 per share (Title of Class of Securities) 90138A996 (CUSIP Number) Jonathan Selvadoray Temasek International Pte. Ltd. 60B Orchard Road, #06-18 Tower 2 The Atrium@Orchard Singapore 238891 Telephone: +65 6828 2442 With Copies to: Miranda So Davis Polk & Wardwell Hong Kong Club Building 3A]