Document:

EX-4.37

 Exhibit 4.37 

English translation for reference only 

Supplemental Agreement to Optional Share Purchase Agreement 

This Supplementary Agreement is entered into in Chaoyang District, Beijing as of December 19, 2016 by and among: 

 

			
	Party A:	 	21Vianet Data Center Co., Ltd.
		
	Party B:	 	Beijing Yiyun Network Technology Co., Ltd.
		
		 	Beijing 21Vianet Broad Band Data Center Co., Ltd.
		
	Party C:	 	Sheng CHEN, Jun ZHANG

 WHEREAS 
  

	1.	Party B, formerly known as 21ViaNet System Limited, has changed its name to Beijing Yiyun Network Technology Co., Ltd.; and 

  

	2.	Parties A, B and C entered into that certain OPTIONAL SHARE PURCHASE AGREEMENT dated December 19, 2006 (the “Original Agreement”); 

Now therefore, the Parties agree as follows: 
  

	1.	The term of the Original Agreement shall be extended for ten (10) years, and may be automatically extended for another ten (10) years upon expiry of such extended term, and may be extended for unlimited number
of times thereafter, unless Party A determines to terminate this Supplemental Agreement and the Original Agreement by giving a 30-day prior written notice to the other parties. 

 

	2.	In case of any discrepancy between this Supplemental Agreement and the Original Agreement, this Supplemental Agreement shall prevail; any matters not covered herein shall be subject to the Original Agreement.

  

	3.	This Supplemental Agreement shall become effective as of the date first written above upon execution or affixing of official seals by the three Parties. 

 

	4.	This Supplemental Agreement is made in six (6) counterparts with each Party holding two (2) originals copies, all of which shall be of the same legal effect. 

(Signature page to follow) 

 English translation for reference only 

 

			
	Party A:	 	/s/ 21Vianet Data Center Co., Ltd. (affixed with official seal)
		
	Party B:	 	/s/ Beijing Yiyun Network Technology Co., Ltd. (affixed with official seal)
		
		 	/s/ Beijing 21Vianet Broad Band Data Center Co., Ltd. (affixed with official seal)
		
	Party C:	 	/s/ Sheng CHEN
		
		 	/s/ Jun ZHANGEX-4.38

 Exhibit 4.38 

English translation for reference only 

Supplemental Agreement to Exclusive Technical Consulting and Services Agreement 

This Supplemental Agreement is entered into in Chaoyang District, Beijing as of December 19, 2016 by and among: 

Party A: 21Vianet Data Center Co., Ltd. 
 Party B: Beijing Yiyun
Network Technology Co., Ltd. 
 Party C: Beijing 21Vianet Broad Band Data Center Co., Ltd. 

WHEREAS 
  

	1.	Party B, formerly known as 21ViaNet System Limited, has changed its name to Beijing Yiyun Network Technology Co., Ltd.; and 

  

	2.	Parties A, B and C entered into that certain EXCLUSIVE TECHNICAL CONSULTING AND SERVICES AGREEMENT dated December 19, 2006 (the “Original Agreement”); 

Now therefore, the Parties agree as follows: 
  

	1.	The term of the Original Agreement shall be extended for ten (10) years, and may be automatically extended for another ten (10) years upon expiry of such extended term, and may be extended for unlimited number
of times thereafter, unless Party A determines to terminate this Supplemental Agreement and the Original Agreement by giving a 30-day prior written notice to the other parties. 

 

	2.	In case of any discrepancy between this Supplemental Agreement and the Original Agreement, this Supplemental Agreement shall prevail; any matters not covered herein shall be subject to the Original Agreement.

  

	3.	This Supplemental Agreement shall become effective as of the date first written above upon execution or affixing of official seals by the three Parties. 

 

	4.	This Supplemental Agreement is made in six (6) counterparts with each Party holding two (2) originals copies, all of which shall be of the same legal effect. 

(Signature page to follow) 

 English translation for reference only 

 

 Party A: /s/ 21Vianet Data Center Co., Ltd. (affixed with official seal) 

Party B: /s/ Beijing Yiyun Network Technology Co., Ltd. (affixed with official seal) 

Party C: /s/ Beijing 21Vianet Broad Band Data Center Co., Ltd. (affixed with official seal)EX-4.39

 Exhibit 4.39 

Execution Version 
 DATE:
5 MARCH 2017 
 21VIANET GROUP, INC. 

21VIANET DRP INVESTMENT HOLDINGS LIMITED 

AND 
 MARBLE STONE
HOLDINGS LIMITED 
  
  

INVESTMENT AGREEMENT 
  

 

 TABLE OF CONTENTS 

 

							
			
	 1.
	    	INTERPRETATION	  	 	2	 
			
	 2.
	    	INVESTMENT STRUCTURE	  	 	2	 
			
	 3.
	    	CONDITIONS PRECEDENT	  	 	6	 
			
	 4.
	    	INVESTMENT COMMITMENT	  	 	6	 
			
	 5.
	    	MASTER SERVICE ARRANGEMENT	  	 	28	 
			
	 6.
	    	PROJECT MANAGEMENT	  	 	31	 
			
	 7.
	    	EXCESS CASH DISTRIBUTION	  	 	32	 
			
	 8.
	    	REPRESENTATIONS AND WARRANTIES	  	 	32	 
			
	 9.
	    	ADDITIONAL COVENANTS	  	 	34	 
			
	 10.
	    	CORPORATE GOVERNANCE	  	 	42	 
			
	 11.
	    	TRANSFER RESTRICTIONS	  	 	47	 
			
	 12.
	    	IPO OR REIT	  	 	50	 
			
	 13.
	    	EXIT	  	 	51	 
			
	 14.
	    	INDEMNITY	  	 	54	 
			
	 15.
	    	TERMINATION	  	 	55	 
			
	 16.
	    	MISCELLANEOUS	  	 	57	 

			
		
	 Exhibit 1.1
	  	Definitions
		
	 Exhibit 4.2(c)(i)
	  	Conditions Precedent to Investor’s Investment
		
	 Exhibit 6.5
	  	Principles of Employee Share Subscription Plan
		
	 Exhibit 8.2(a)(i)
	  	Representations and Warranties of VNET and Vianet
		
	 Exhibit 9.8
	  	Covenants of Vianet
		
	 Exhibit 10.3
	  	Reserved Matters
		
	 Exhibit 10.5
	  	Investor’s Information and Inspection Rights
		
	 Exhibit 11.7
	  	Form of Deed of Adherence
		
	 Exhibit 12.3(c)
	  	Appraisal Principles
		
	 Exhibit 14.3
	  	Vianet’s Specific Indemnity Matters
		
	 Exhibit 16.7
	  	Address of Notices
		
	 Schedule 2.1
	  	Existing Structure
		
	 Schedule A
	  	List of Projects and Project Companies
		
	 Schedule B
	  	Form of Closing Certificate
		
	 Schedule C
	  	Annual Business Plan and Budget

 THIS INVESTMENT AGREEMENT (this “Agreement”) is entered into on
5 March 2017, 
 BY AND AMONG:- 
  

	(1)	21VIANET GROUP, INC., a NASDAQ listed company duly incorporated and validly existing under the laws of the Cayman Islands with its registered office address at the offices of Maples Corporate
Services Limited, PO Box 309, Ugland House, Grand Cayman, KY1-1104, Cayman Islands (“VNET”); and 

  

	(2)	21VIANET DRP INVESTMENT HOLDINGS LIMITED, a limited liability company duly incorporated and validly existing under the laws of Hong Kong with its registered office address at the
offices of Flat/Room 716, 7/F., 12W Phase 3 Hong Kong Science Park, Pak Shek Kok, Shatin, New Territories, Hong Kong (“Vianet”); and 

  

	(3)	MARBLE STONE HOLDINGS LIMITED (Company Number: 1923409), a business company duly incorporated and validly existing under the laws of the British Virgin Islands with its registered office
address at P.O. Box 3340, Road Town, Tortola, British Virgin Islands (“WP” or the “Investor”). 

Vianet and WP are hereinafter collectively referred to as the “Shareholders”, and individually as a
“Shareholder”. VNET, Vianet and WP are hereinafter collectively referred to as the “Parties”, and individually as a “Party”. 

RECITALS 
 WHEREAS:- 

 

	(A)	The Shareholders intend to establish JV Co 1 (as defined below) to own the Existing Projects (as defined below). As at the date hereof, Vianet and its Affiliates own the Existing Projects and intend to inject the
Existing Projects into JV Co 1 and lease the Existing Projects back from JV Co 1. 

  

	(B)	The Shareholders intend to establish JV Co 2 (as defined below) to acquire, develop, own and operate other wholesale data centers and to conduct power related business in the PRC, with a goal of developing a “best-in-class” data center real estate portfolio of 80,000 to 100,000 cabinets within five (5) year after the date hereof. 

 

	(C)	The Shareholders intend to establish JV Co 3 (as defined below) to provide management services to the Group Companies. Going forward JV Co 3 may also provide services to other third parties depending on its future
business needs. 

  

	(D)	In addition to supporting Vianet’s and its Affiliates’ future demand for data center capacity, the Shareholders intend to, via JV Cos (as defined below), develop third party wholesale data center tenants and
customers aside from Vianet and its Affiliates with a goal of expanding third party tenants to over 50% of JV Cos’ capacity in order to fulfill independence requirements for a standalone IPO or REIT. Except for providing space and
infrastructure for Vianet and its Affiliates where applicable, JV Cos shall operate on a standalone basis and have no obligation to sell and promote other businesses of Vianet or its Affiliates, including network, retail colocation and other
value-added services. 

  

	(E)	VNET and the Investor entered into a Framework Agreement dated 26 October 2016 in respect of the Parties’ intent to the foregoing cooperation (the “Framework
Agreement”). 

  

	(F)	The Parties intend to complete the transactions contemplated hereby (the “Transactions”) upon the terms and subject to the conditions of this Agreement and other Transaction Documents.

  
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 NOW, THEREFORE, in consideration of the mutual promises, agreements and covenants set forth herein,
and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties, intending to be legally bound, hereby agree as follows:- 

 

	1.	INTERPRETATION 

  

	1.1	Definitions. Unless otherwise defined in this Agreement, capitalized terms used in this Agreement shall have the meanings set forth in Exhibit 1.1 and the Restructuring and Transaction Plan.

  

	1.2	Interpretation. For all purposes of this Agreement, except as otherwise expressly provided, (a) the terms defined herein shall include the plural as well as the singular, (b) all accounting terms not
otherwise defined herein have the meanings assigned under US GAAP, (c) all references in this Agreement to designated “Sections” and other subdivisions are to the designated Sections and other subdivisions of the body of this
Agreement, (d) pronouns of either gender or neuter shall include, as appropriate, the other pronoun forms, (e) the words “herein,” “hereof” and “hereunder” and other words of similar import refer to this
Agreement as a whole and not to any particular Section or other subdivision, (f) all references in this Agreement to designated exhibits or schedules are to the exhibits or schedules attached to this Agreement unless explicitly stated
otherwise, (g) unless the context otherwise requires, “onshore” means in the PRC, and “offshore” means outside the PRC, (h) “include,” “including,” “are inclusive of” and similar expressions are
not expressions of limitation and shall be construed as if followed by the words “without limitation”, and (i) if a period of time is specified and dates from a given day or the day of a given act or event, such period shall be
calculated exclusive of that day. 

  

	1.3	Foreign Exchange Rate. Unless otherwise specified herein, the arithmetic average of the intermediate exchange rates between US Dollars and RMB as promulgated by the People’s Bank of China (or its
authorized agency) respectively in the ten (10) Business Days immediately prior to the actual payment date of any payment shall apply with respect to any conversion between US Dollars and RMB. 

 

	2.	INVESTMENT STRUCTURE 

  

	2.1	Existing Structure. Vianet represents and warrants to the Investor that as at the date of this Agreement, the structure of the Group Companies is as set forth in Schedule 2.1. 

 

	2.2	Perfected Structure. 

  

	 	(a)	Restructuring. The Shareholders agree that as soon as practicable, Vianet shall (and shall cause its Affiliates to) complete the restructuring and transaction steps (the “Restructuring”)
as provided in the Restructuring and Transaction Plan as mutually agreed upon by the Shareholders, which may be adjusted from to time upon mutual agreement among the Parties (the “Restructuring and Transaction Plan”) in
accordance with the time schedule set forth therein or such other time period as mutually agreed between the Shareholders, and the Investor shall provide commercially reasonable assistance. Except as disclosed in the Disclosure Schedule, Vianet
shall ensure that upon completion of the Restructuring, each Existing Project Company shall own and/or be entitled to use such land use right building ownership, machine, equipment and other assets as required for such Existing Project Company to
operate as a wholesale data center service provider on a standalone basis at the time of completion of the Restructuring. Vianet shall ensure that to the extent practicably possible, all applicable and valid evidences (such as value-added tax
invoices) be duly issued and maintained for all cost basis of each of the Existing Projects and the Existing Project Companies upon during and through the completion of the Restructuring for corporate income tax deduction purpose. 

  
 2 

	 	(b)	Communication with Investor on Restructuring. Vianet shall (and shall cause the Group Companies and its Affiliates to) keep the Investor informed of the status and progress of the Restructuring and communicate
with the Investor at regular intervals. Vianet shall (and shall cause the Group Companies and its Affiliates to), prior to the execution and implementation of the terms thereof, provide to the Investor copies of the Restructuring-related documents
and incorporate in such documents all comments relating thereto as reasonably proposed by the Investor. Upon request by the Investor, Vianet shall (and shall cause the Group Companies and its Affiliates to) provide copies of the executed versions of
such documentation to the Investor. Nothing in this Section 2.2(b) (Communication with Investor on Restructuring) will in any way prejudice or limit any other rights or remedies available to the Investor under any Transaction Document.

  

	 	(c)	Breach of Restructuring. Vianet acknowledges and undertakes that notwithstanding the fact that the Restructuring and Transaction Plan may be prepared or reviewed by the Investor or its legal, tax or other
counsels, unless otherwise mutually agreed upon by the Shareholders, any material failure of the Restructuring in accordance with the time schedule set forth therein or such other time period as mutually agreed between the Shareholders shall be
deemed a Material Breach by Vianet under this Agreement. If the Restructuring and Transaction Plan fails to be completed due to a reason not attributable to Vianet and its Affiliates, the Parties shall discuss in good faith to seek alternative
arrangements to achieve the same commercial outcome. Nothing in this Section 2.2(c) (Breach of Restructuring) will in any way prejudice or limit any other rights or remedies available to the Investor under any Transaction Document.

  

	2.3	Incorporation of JV Cos. 

  

	 	(a)	JV Co 1. Within twenty (20) Business Days after the date hereof, the Shareholders shall jointly incorporate a joint venture in the form of an exempted company with limited liability in the Cayman Islands
(“JV Co 1”) to develop and operate the Existing Projects via PropCo 1 (as defined below). Immediately upon or as soon as practicable after the incorporation of JV Co 1, (i) the authorized share capital of JV Co 1 shall be
US$5,000, divided into 255,000,000 Class A shares of a nominal or par value of US$0.00001 each and 245,000,000 Class B shares of a nominal or par value of US$0.00001 each; (ii) the issued and outstanding shares of JV Co 1 shall be 51
Class A shares and 49 Class B shares; and (iii) Vianet shall hold 51 Class A shares representing 100% of the issued and outstanding Class A shares, and the Investor shall hold 49 Class B shares representing 100% of the
issued and outstanding Class B shares. 

  
 3 

	 	(b)	JV Co 2. Within twenty (20) Business Days after the date hereof, the Shareholders shall jointly incorporate a joint venture in the form of an exempted company with limited liability in the Cayman Islands
(“JV Co 2”) to acquire, develop and operate future Projects via PropCo 2 (as defined below). Immediately upon or as soon as practicable after the incorporation of JV Co 2, (i) the authorized share capital of JV Co 2 shall be
US$5,000, divided into 245,000,000 Class A shares of a nominal or par value of US$0.00001 each and 255,000,000 Class B shares of a nominal or par value of US$0.00001 each; (ii) the issued and outstanding shares of JV Co 2 shall be 49
Class A shares and 51 Class B shares; and (iii) Vianet shall hold 49 Class A shares representing 100% of the issued and outstanding Class A shares, and the Investor shall hold 51 Class B shares representing 100% of the
issued and outstanding Class B shares. 

  

	 	(c)	JV Co 3. Within twenty (20) Business Days after the date hereof, the Shareholders shall jointly incorporate a joint venture in the form of an exempted company with limited liability in the Cayman Islands
(“JV Co 3”, and collectively with JV Co 1 and JV Co 2, the “JV Cos”) to provide management services to all the Projects via the Management HoldCo (as defined below). Going forward JV Co 3 may also
provide services to other third parties depending on its future business needs. Immediately upon or as soon as practicable after the incorporation of JV Co 3, (i) the authorized share capital of JV Co 3 shall be US$5,000, divided into 245,000,000
Class A shares of a nominal or par value of US$0.00001 each and 255,000,000 Class B shares of a nominal or par value of US$0.00001 each; (ii) the issued and outstanding shares of JV Co 3 shall be 1,960,000 Class A shares and
2,040,000 Class B shares; and (iii) Vianet shall hold 1,960,000 Class A shares representing 100% of the issued and outstanding Class A shares, and the Investor shall hold 2,040,000 Class B shares representing 100% of the
issued and outstanding Class B shares. 

  

	 	(d)	Articles. The Shareholders shall take any and all actions to procure that the memorandum and articles of association of JV Co 1 (the “JV Co 1 Articles”), the memorandum and articles of
association of JV Co 2 (the “JV Co 2 Articles”) and the memorandum and articles of association of JV Co 3 (the “JV Co 3 Articles”) shall duly reflect the provisions hereof and shall be in such form and
substance as mutually agreed upon by the Shareholders. 

  

	 	(e)	Intermediate Companies. 

  

	 	(i)	As soon as practicable after incorporation of JV Co 1, the Shareholders shall cause JV Co 1 to incorporate a wholly-owned Subsidiary in the form of a business company with limited liability in the British Virgin Islands
(“PropCo 1”) to hold, directly or indirectly, any and all Group Companies incorporated for the Existing Projects. 

  

	 	(ii)	As soon as practicable after incorporation of JV Co 2, the Shareholders shall cause JV Co 2 to incorporate a wholly-owned Subsidiary in the form of a business company with limited liability in the British Virgin Islands
(“PropCo 2”) to hold, directly or indirectly, any and all Group Companies incorporated for future Projects. 

  
 4 

	 	(iii)	As soon as practicable after incorporation of JV Co 3, the Shareholders shall cause JV Co 3 to incorporate a wholly-owned Subsidiary in the form of a business company with limited liability in the British Virgin Islands
(“Management HoldCo”), which shall, as soon as practicable after its incorporation, incorporate a wholly-owned Subsidiary in the form of a limited liability company in the PRC (the “Management
Company”) to provide management services to the Group Companies pursuant to the provisions hereof. 

  

	 	(iv)	Subject to consent of the Shareholders or approval by the board of the relevant Group Company, one or more tiers of intermediate companies may be added into the Group Companies. 

 

	 	(f)	Board of Directors. The Shareholders shall ensure that upon the incorporation of each of JV Cos, PropCo 1, PropCo 2, the Management HoldCo and the Management Company, the composition of the board of directors of
each of the foregoing Group Companies shall be consistent with those provided in Section 10 (Corporate Governance). 

  

	 	(g)	Shareholders’ Actions. 

  

	 	(i)	Vianet shall engage a Cayman registered office provider, a BVI registered agent and a PRC registered agent each satisfactory to the Investor to complete any and all procedures required for the incorporation of each of
JV Co 1, JV Co 2, JV Co 3, PropCo 1, PropCo 2, the Management HoldCo and the Management Company (collectively, the “Advanced Companies”) and shall cause such registered office provider or registered agent (as the case may be)
to, immediately or as soon as practicable after the incorporation of the Advanced Companies, deliver to the Investor documents in respect of the Investor’s shareholding in each of JV Cos (including without limitation, share certificate, copies
of register of members and register of directors), and the Investor shall in good faith provide necessary assistance to the foregoing actions of Vianet. Any and all costs in connection with the incorporation of the Advanced Companies (the
“Incorporation Costs”) shall be advanced by Vianet provided that the total Incorporation Costs advanced by Vianet shall not exceed RMB1,000,000. 

 

	 	(ii)	Before the incorporation of JV Co 2, if there is any Project that the Shareholders mutually agree in writing to pursue, Vianet shall advance costs for acquiring and maintaining the investment opportunities in respect of
such Project(s) (the “JV Co 2 Investment Costs”) provided that the total costs advanced by Vianet for such Project(s) shall not exceed US$1,000,000. If the JV Co 2 Investment Costs exceed US$1,000,000, the portion of such
costs exceeding US$1,000,000 shall be advanced by the Shareholders on a pro rata basis based on their respective Shareholding Percentages in JV Co 2. 

 

	 	(iii)	Any and all of the Incorporation Costs shall be reimbursed by the relevant JV Cos respectively as soon as practicable after the incorporation of JV Co 3, and any and all of the JV Co 2 Investment Costs shall be
reimbursed by JV Co 2 as soon as practicable (but in any event within ten (10) Business Days) after the incorporation of JV Co 3. 

  
 5 

	3.	CONDITIONS PRECEDENT 

  

	3.1	Conditions Precedent. 

  

	 	(a)	WP’s Conditions Precedent. WP’s obligation to complete each tranche of the JV Co 2 Closing is subject to and conditional upon the satisfaction (or waiver by WP in writing in its sole
discretion) of WP’s JV Co 2 Closing Conditions as listed in Exhibit 4.2(c)(i). 

  

	 	(b)	Conversion of Conditions Precedent. If any of WP’s JV Co 2 Closing Conditions is waived by the Investor in writing, such waived WP’s JV Co 2 Closing Condition shall be deemed as a post-closing covenant
made by Vianet in favor of the Investor, unless the nature of such waived WP’s JV Co 2 Closing Condition renders it impossible to be deemed as a post-closing covenant made by Vianet. 

 

	3.2	Long Stop Date. The Parties shall use their respective Best Efforts to procure that at least one tranche of the JV Co 2 Closing with respect to the Daxing Project or the Yizhuang Project occur within six
(6) months after the date hereof or such other date as mutually agreed upon by the Shareholders in writing (the date of expiry of the foregoing six (6) months or such other date, the “Long Stop Date”),
otherwise, this Agreement and other Transaction Documents may be terminated pursuant to Section 15 (Termination). 

  

	4.	INVESTMENT COMMITMENT 

  

	4.1	JV Co 1 Closing. 

  

	 	(a)	Acquisition of 49% Stake in Yizhuang Project Company. 

  

	 	(i)	Within fifteen (15) Business Days after the date hereof, WP shall incorporate a wholly-owned Subsidiary in Singapore (“WP SPV 1”). 

 

	 	(ii)	Within five (5) Business Days after the incorporation of WP SPV1 and completion of the restructuring provided in the Restructuring and Transaction Plan in respect of the Yizhuang Project Company, the Shareholders
shall jointly designate an Appraiser to issue a valuation report on the Yizhuang Project Company satisfactory to the Shareholders (the “Yizhuang Valuation Report”). 

 

	 	(iii)	Within fifteen (15) Business Days after the issuance of the Yizhuang Valuation Report, Vianet shall cause 21Vianet VNB and WP shall cause WP SPV 1 to jointly enter into an equity transfer agreement, a joint venture
contract and an amended and restated articles of association of the Yizhuang Project Company (collectively, the “Yizhuang Documents”, which shall provide for corporate governance rights, transfer restrictions, exit
rights and other rights and protections of WP SPV 1 that are no less favourable to WP SPV 1 than those provided to the Investor in Section 10 (Corporate Governance), Section 11 (Transfer Restrictions), Section 13 (Exit) (excluding
Section 13.2 (Share Swap with Vianet ListCo) provided that the Shareholders shall make proper arrangements such that the foregoing will not apply after the Yizhuang Project Company becomes a wholly-owned Subsidiary of JV Co 1) and
Section 14 (Indemnity)) each in form and substance satisfactory to the Shareholders where 21Vianet VNB shall transfer 49% of the equity interests in the Yizhuang Project Company to WP SPV 1 at a transfer price equal to the US dollars equivalent
(with an exchange rate as provided in Section 1.3 (Foreign Exchange Rate) applied) of 49% of the equity value of the Yizhuang Project Company as shown in the Yizhuang Valuation Report (where such equity value of the Yizhuang Project Company
shall not exceed the Estimated Equity Value of the Yizhuang Project Company) (the “Yizhuang 49% Equity Transfer”). 

  
 6 

	 	(iv)	Vianet shall (and shall cause its Affiliates to) submit the Yizhuang Equity Transfer to the relevant MOFCOM for approval and register the Yizhuang 49% Equity Transfer with the relevant AIC (the date of such submission
of registration, the “Yizhuang AIC Submission Date”) and shall use Best Efforts to ensure that such approval and registration be completed within twenty (20) Business Days after the execution of the Yizhuang Documents
(the date on which such registration is completed, the “Yizhuang 49% Registration Date”). WP shall (and shall cause WP SPV 1 to) provide reasonable assistance in such approval completion. 

 

	 	(v)	On the Yizhuang AIC Submission Date, and subject to satisfaction (or waiver, as applicable) of items (a), (b), (d), (j) and (k) in Exhibit 4.2(c)(i) and such other conditions as provided in the Yizhuang
Documents, WP shall cause WP SPV 1 to pay to 21Vianet VNB the transfer price (the “Yizhuang 49% Equity Transfer Price”) as provided in the Yizhuang Documents to a bank account opened in the name of 21Vianet VNB that is
jointly controlled by a signatory designated by each of the Shareholders (the “Onshore Escrow Account”). Any fund transfer in the Onshore Escrow Account shall be subject to approval of all signatories designated by the
Shareholders and without the prior written approval of WP, Vianet shall not (and shall cause 21Vianet VNB not to) remove or change the signatory designated by WP. 

 

	 	(vi)	On or after the Yizhuang 49% Registration Date, upon the request by Vianet, the Shareholders shall as soon as practically possible release the Yizhuang 49% Equity Transfer Price in the Onshore Escrow Account solely for
the purpose of payment of the purchase prices under the Daxing Financing Lease for purchasing all the equipment under the Daxing Financing Lease from the relevant owners, which is also specified in the Restructuring and Transaction Plan.

  

	 	(b)	Restructuring of Yizhuang Project Company. 

  

	 	(i)	Within fifteen (15) Business Days after the date hereof, Vianet shall incorporate a wholly-owned Subsidiary in Singapore (“Vianet SPV 1”). 

  
 7 

	 	(ii)	Within fifteen (15) Business Days (or such other time period as mutually agreed between the Shareholders) after the incorporation of Vianet SPV 1 and subject to completion of the acquisition provided in Section
4.1(a) (Acquisition of 49% Stake in Yizhuang Project Company), (A) Vianet shall cause 21Vianet VNB and Vianet SPV 1 to jointly enter into an equity transfer agreement; and (B) Vianet shall cause Vianet SPV 1 and WP shall cause WP SPV 1 to
jointly enter into an amended and restated joint venture contract and an amended and restated articles of association of the Yizhuang Project Company, which joint venture contract and articles of association shall be substantially the same as the
ones set forth in Section 4.1(a)(iii) except that the signing party 21Vianet VNB shall be replaced by Vianet SPV 1 (collectively, the “Amended Yizhuang Documents”) each in form and substance satisfactory to the Shareholders
where 21Vianet VNB shall transfer 51% of the equity interests in the Yizhuang Project Company to Vianet SPV 1 at a transfer price equal to the US dollars equivalent (with an exchange rate as provided in Section 1.3 (Foreign Exchange Rate)
applied) of 51% of the equity value of the Yizhuang Project Company as shown in the Yizhuang Valuation Report (the “Yizhuang 51% Equity Transfer”). 

 

	 	(iii)	Vianet shall (and shall cause its Affiliates to) complete all formalities in respect of the Yizhuang 51% Equity Transfer and register the Yizhuang 51% Equity Transfer with the relevant AIC and shall use Best Efforts to
ensure that such formalities and registration be completed within ten (10) Business Days after the execution of the Amended Yizhuang Documents the date on which such registration is completed, the “Yizhuang 51% Registration
Date”). WP shall (and shall cause WP SPV 1 to) provide reasonable assistance in such completion. 

  

	 	(iv)	Within five (5) Business Days (or such other time period as mutually agreed between the Shareholders) after the Yizhuang 51% Registration Date, Vianet shall cause Vianet SPV1 to pay to or set off with 21Vianet VNB
(provided that Vianet shall ensure that such set-off (x) be completed in full compliance with Applicable Laws and booked in consistent with all requirements under US GAAP) the transfer price as provided
in the Amended Yizhuang Documents (completion of the transaction steps in this Section 4.1(b) (Restructuring of Yizhuang Project Company) shall be referred to as the “Yizhuang Closing”). 

 

	 	(c)	Subscription of Additional Shares in JV Co 1. 

  

	 	(i)	Within ten (10) Business Days (or such other time period as mutually agreed between the Shareholders) after the Yizhuang 51% Registration Date, (A) Vianet shall subscribe for additional Class A shares to
be issued by JV Co 1 (the number of which shall be the transfer price for the Yizhuang 51% Equity Transfer set forth in Section 4.1(b)(ii) divided by US$1) in consideration of injecting all Vianet’s shares in Vianet SPV 1 into PropCo 1; and
(B) WP shall subscribe for additional Class B shares to be issued by JV Co 1 (the number of which shall be the transfer price for the Yizhuang 49% Equity Transfer set forth in Section 4.1(a)(iii) divided by US$1) in consideration of
injecting all WP’s shares in WP SPV 1 into PropCo 1. The Shareholders shall enlarge the authorized share capital of JV Co 1 to the extent necessary in order to complete the foregoing subscription. 

  
 8 

	 	(ii)	Immediately upon completion of the subscription set forth in Section 4.1(c)(i), (A) Vianet shall hold Class A shares representing 51% of the total issued and outstanding shares in JV Co 1, and the Investor shall
hold Class B shares representing 49% of the total issued and outstanding shares in JV Co 1; and (B) each of Vianet SPV 1 and WP SPV 1 shall become a wholly-owned Subsidiary of PropCo 1, and Vianet SPV 1 and WP SPV 1 shall jointly own
100% of the Yizhuang Project Company. 

  

	 	(iii)	On or as soon as practicable after the completion of the subscription set forth in Section 4.1(c)(i), JV Co 1 shall deliver to Vianet and WP, respectively:- 

 

	 	(A)	the original of the share certificates for Vianet’s subscription shares and WP’s subscription shares, respectively; and 

  

	 	(B)	a photocopy of the duly updated Register of Members of JV Co 1, evidencing Vianet and WP as the holder of Vianet’s subscription shares and WP’s subscription shares, in each case certified by a director or the
registered office provider of JV Co 1. 

  

	 	(d)	Acquisition of Xi’an Project Company. 

  

	 	(i)	Within fifteen (15) Business Days (or such other time period as mutually agreed between the Shareholders) after incorporation of PropCo 1 and subject to completion of the restructuring provided in the Restructuring
and Transaction Plan in respect of the Xi’an Project Company, the Shareholders shall cause PropCo 1 and Vianet shall cause 21Vianet HK to jointly enter into a share transfer agreement and to amend and restate the articles of association of each
of the Xi’an Offshore SPV and the Xi’an Project Company (collectively, the “Xi’an Documents”) each in form and substance satisfactory to the Shareholders where 21Vianet HK shall transfer 100% of the shares in
the Xi’an Offshore SPV to PropCo 1 at a transfer price to be agreed by Vianet and the Investor (where the equity value of the Xi’an Offshore SPV shall not exceed the Estimated Equity Value of the Xi’an Project Company) (the
“Xi’an 100% Share Transfer”). 

  

	 	(ii)	Vianet shall (and shall cause its Affiliates to) complete any and all filings, registrations and other formalities in respect of the Xi’an 100% Share Transfer and shall use Best Efforts to ensure that such
formalities be completed within ten (10) Business Days after the execution of the Xi’an Documents (the date of such completion, the “Xi’an Completion Date”). WP shall provide reasonable assistance in such
completion. 

  
 9 

	 	(iii)	On or prior to the Xi’an Completion Date, and subject to satisfaction (or waiver, as applicable) of items (a), (b), (d), (j) and (k) in Exhibit 4.2(c)(i) and such other conditions as provided in the
Xi’an Documents, (A) Vianet shall subscribe for additional Class A shares to be issued by JV Co 1 at a subscription price of 51% of the transfer price as provided in the Xi’an Documents; and (B) WP shall subscribe for
additional Class B shares to be issued by JV Co 1 at a subscription price of 49% of the transfer price as provided in the Xi’an Documents. On or as soon as practicable after the completion of the subscription set forth in this Section
4.1(d)(iii), JV Co 1 shall deliver to Vianet and WP, respectively: (x) the original of the share certificates for Vianet’s subscription shares and WP’s subscription shares, respectively; and (y) a photocopy of the duly updated
Register of Members of JV Co 1, evidencing Vianet and WP as the holder of Vianet’s subscription shares and WP’s subscription shares, in each case certified by a director or the registered office provider of JV Co 1. 

 

	 	(iv)	On the Xi’an Completion Date, the Shareholders shall cause JV Co 1 to lend the subscription prices set forth in Section 4.1(d)(iii) to PropCo 1 for payment to 21Vianet HK: (A) 51% of the transfer price as provided
in the Xi’an Documents to a bank account designated by 21Vianet HK (at the request of Vianet, such transfer price may be set off against the subscription price provided in Section 4.1(d)(iii)(A) provided that Vianet shall ensure that such set-off (x) be completed in full compliance with Applicable Laws and booked in consistent with all requirements under US GAAP, and (y) shall not have any adverse effect on any Group Company); and (B)
49% of the transfer price as provided in the Xi’an Documents to a bank account of JV Co 2, which shall be deemed both as payment of the 49% transfer price to 21Vianet HK and as Vianet’s Tranche Subscription Price in respect of the
Xi’an Project as provided in Section 4.2(a)(i). Vianet shall (and shall cause its relevant Affiliates to) make proper accounting arrangements to ensure that such deemed payment of the 49% transfer price to 21Vianet HK and Vianet’s Tranche
Subscription Price (x) be completed in full compliance with Applicable Laws and booked in consistent with all requirements under US GAAP, and (y) shall not have any adverse effect on any Group Company. 

 

	 	(v)	Immediately upon completion of the acquisition set forth in this Section 4.1(d) (Acquisition of Xi’an Project Company), (A) Vianet shall hold Class A shares representing 51% of the total issued and outstanding
shares in JV Co 1, and the Investor shall hold Class B shares representing 49% of the total issued and outstanding shares in JV Co 1; and (B) the Xi’an Offshore SPV shall become a wholly-owned Subsidiary of PropCo 1, and the
Xi’an Offshore SPV shall own 100% of the Xi’an Project Company (completion of the transaction steps in this Section 4.1(d) (Acquisition of Xi’an Project Company) shall be referred to as the “Xi’an
Closing”). Vianet shall complete any and all tax filings in respect of the Xi’an Closing pursuant to the time schedule (but in no event later than one (1) year after the Xi’an Closing) and other requirements under
Applicable Laws and provide copies of the relevant tax filing/payment certificates to the Investor. A valuation report in respect of the Xi’an Project Company may be prepared if so required by the relevant Government Entity. 

  
 10 

	 	(e)	Acquisition of Foshan Project Company. 

  

	 	(i)	Within fifteen (15) Business Days (or such other time period as mutually agreed between the Shareholders) after incorporation of PropCo 1 and subject to completion of the restructuring provided in the Restructuring
and Transaction Plan in respect of the Foshan Project Company, the Shareholders shall cause PropCo 1 and Vianet shall cause 21Vianet HK to jointly enter into a share transfer agreement and to amend and restate the articles of association of each of
Dynamic Ruby Limited (a business company incorporated under the laws of the British Virgin Islands, “Dynamic Ruby”), the Foshan Offshore SPV and the Foshan Project Company (collectively, the “Foshan
Documents”) each in form and substance satisfactory to the Shareholders where 21Vianet HK shall transfer 100% of the shares in Dynamic Ruby to PropCo 1 at a transfer price to be agreed by Vianet and the Investor (where the equity value
of the Dynamic Ruby shall not exceed the Estimate Equity Value of the Foshan Project Company) (the “Foshan 100% Share Transfer”). 

  

	 	(ii)	Vianet shall (and shall cause its Affiliates to) complete any and all filings, registrations and other formalities in respect of the Foshan 100% Share Transfer and shall use Best Efforts to ensure that such formalities
be completed within ten (10) Business Days after the execution of the Foshan Documents (the date of such completion, the “Foshan Completion Date”). WP shall provide reasonable assistance in such completion.

  

	 	(iii)	On or prior to the Foshan Completion Date, and subject to satisfaction (or waiver, as applicable) of items (a), (b), (d), (j) and (k) in Exhibit 4.2(c)(i) and such other conditions as provided in the Foshan
Documents, (A) Vianet shall subscribe for additional Class A shares to be issued by JV Co 1 at a subscription price of 51% of the transfer price as provided in the Foshan Documents; and (B) WP shall subscribe for additional
Class B shares to be issued by JV Co 1 at a subscription price of 49% of the transfer price as provided in the Foshan Documents. On or as soon as practicable after the completion of the subscription set forth in this Section 4.1(e)(iii),
JV Co 1 shall deliver to Vianet and WP, respectively: (x) the original of the share certificates for Vianet’s subscription shares and WP’s subscription shares, respectively; and (y) a photocopy of the duly updated Register of
Members of JV Co 1, evidencing Vianet and WP as the holder of Vianet’s subscription shares and WP’s subscription shares, in each case certified by a director or the registered office provider of JV Co 1. 

 

	 	(iv)	On the Foshan Completion Date, the Shareholders shall cause JV Co 1 to lend the subscription prices set forth in Section 4.1(d)(iii) to PropCo 1 for payment to 21Vianet HK: (A) 51% of the transfer price as provided in
the Foshan Documents to a bank account designated by 21Vianet HK (at the request of Vianet, such transfer price may be set off against the subscription price provided in Section 4.1(e)(iii)(A) provided that Vianet shall ensure that such set-off (x) be completed in full compliance with Applicable Laws and booked in consistent with all requirements under US GAAP, and (y) shall not have any adverse effect on any Group Company); and (B)
49% of the transfer price as provided in the Foshan Documents to a bank account of JV Co 2, which shall be deemed both as payment of the 49% transfer price to 21Vianet HK and as Vianet’s Tranche Subscription Price in respect of the Foshan
Project as provided in Section 4.2(a)(i). Vianet shall (and shall cause its relevant Affiliates to) make proper accounting arrangements to ensure that such deemed payment of the 49% transfer price to 21Vianet HK and Vianet’s Tranche
Subscription Price (x) be completed in full compliance with Applicable Laws and booked in consistent with all requirements under US GAAP, and (y) shall not have any adverse effect on any Group Company. 

  
 11 

	 	(v)	Immediately upon completion of the acquisition set forth in this Section 4.1(e) (Acquisition of Foshan Project Company), (A) Vianet shall hold Class A shares representing 51% of the total issued and outstanding
shares in JV Co 1, and the Investor shall hold Class B shares representing 49% of the total issued and outstanding shares in JV Co 1; and (B) Dynamic Ruby shall become a wholly-owned Subsidiary of PropCo 1, Dynamic Ruby shall own
100% of the Foshan Offshore SPV and the Foshan Offshore SPV shall own 100% of the Foshan Project Company (completion of the transaction steps in this Section 4.1(e) (Acquisition of Foshan Project Company) shall be referred to as the
“Foshan Closing”). Vianet shall complete any and all tax filings in respect of the Foshan Closing pursuant to the time schedule (but in no event later than one (1) year after the Foshan Closing) and other requirements
under Applicable Laws. A valuation report in respect of the Foshan Project Company may be prepared if so required by the relevant Government Entity. 

  

	 	(f)	Acquisition of 49% Stake in Daxing Project Company. 

  

	 	(i)	Within fifteen (15) Business Days after the date hereof, WP shall incorporate a wholly-owned Subsidiary in Singapore (“WP SPV 2”). 

 

	 	(ii)	Within five (5) Business Days after the incorporation of WP SPV 2 and completion of the restructuring provided in the Restructuring and Transaction Plan in respect of the Daxing Project Company, the Shareholders
shall jointly designate an Appraiser to issue a valuation report on the Daxing Project Company satisfactory to the Shareholders (the “Daxing Valuation Report”). 

 

	 	(iii)	Within fifteen (15) Business Days after the issuance of the Daxing Valuation Report, Vianet shall cause 21Vianet VNB and WP shall cause WP SPV 2 to jointly enter into an equity transfer agreement, a joint venture
contract and an amended and restated articles of association of the Daxing Project Company (collectively, the “Daxing Documents”, which shall provide for corporate governance rights, transfer restrictions, exit rights
and other rights and protections of WP SPV 2 that are no less favourable to WP SPV 2 than those provided to the Investor in Section 10 (Corporate Governance), Section 11 (Transfer Restrictions), Section 13 (Exit) (excluding
Section 13.2 (Share Swap with Vianet ListCo)) and Section 14 (Indemnity) provided that the Shareholders shall make proper arrangements such that the foregoing will not apply after the Daxing Project Company becomes a wholly-owned
Subsidiary of JV Co 1) each in form and substance satisfactory to the Shareholders where 21Vianet VNB shall transfer 49% of the equity interests in the Daxing Project Company to WP SPV 2 at a transfer price equal to the US dollars equivalent (with
an exchange rate as provided in Section 1.3 (Foreign Exchange Rate) applied) of 49% of the equity value of the Daxing Project Company as shown in the Daxing Valuation Report (where such equity value of the Daxing Project Company shall not
exceed the Estimated Equity Value of the Daxing Project Company) (the “Daxing 49% Equity Transfer”). 

  
 12 

	 	(iv)	Vianet shall (and shall cause its Affiliates to) submit the Daxing Equity Transfer to the relevant MOFCOM for approval and register the Daxing 49% Equity Transfer with the relevant AIC (the date of such submission of
registration, the “Daxing AIC Submission Date”) and shall use Best Efforts to ensure that such approval and registration be completed within twenty (20) Business Days after the execution of the Daxing Documents (the date
on which such registration is completed, the “Daxing 49% Registration Date”). WP shall (and shall cause WP SPV 2 to) provide reasonable assistance in such completion. 

 

	 	(v)	On the Daxing AIC Submission Date, and subject to satisfaction (or waiver, as applicable) of items (a), (b), (d), (j) and (k) in Exhibit 4.2(c)(i) and such other conditions as provided in the Daxing
Documents, WP shall cause WP SPV 2 to pay to 21Vianet VNB the transfer price as provided in the Daxing Documents to the Onshore Escrow Account. 

  

	 	(g)	Restructuring of Daxing Project Company. 

  

	 	(i)	Within fifteen (15) Business Days after the date hereof, Vianet shall incorporate a wholly-owned Subsidiary in Singapore (“Vianet SPV 2”). 

 

	 	(ii)	Within fifteen (15) Business Days (or such other time period as mutually agreed between the Shareholders) after the incorporation of Vianet SPV 2 and subject to completion of the acquisition provided in Section
4.1(f) (Acquisition of 49% Stake in Daxing Project Company), (A) Vianet shall cause 21Vianet VNB and Vianet SPV 2 to jointly enter into an equity transfer agreement; and (B) Vianet shall cause Vianet SPV 2 and WP shall cause WP SPV 2 to jointly
enter into an amended and restated joint venture contract and an amended and restated articles of association of the Daxing Project Company, which joint venture contract and articles of association shall be substantially the same as the ones set
forth in Section 4.1(f)(iii) except that the signing party 21Vianet VNB shall be replaced by Vianet SPV 2 (collectively, the “Amended Daxing Documents”) each in form and substance satisfactory to the Shareholders where
21Vianet VNB shall transfer 51% of the equity interests in the Daxing Project Company to Vianet SPV 2 at a transfer price equal to the US dollars equivalent (with an exchange rate as provided in Section 1.3 (Foreign Exchange Rate) applied) of
51% of the equity value of the Daxing Project Company as shown in the Daxing Valuation Report (the “Daxing 51% Equity Transfer”). 

  
 13 

	 	(iii)	Vianet shall (and shall cause its Affiliates to) complete all formalities in respect of the Daxing 51% Equity Transfer and register the Daxing 51% Equity Transfer with the relevant AIC and shall use Best Efforts to
ensure that such formalities and registration be completed within ten (10) Business Days after the execution of the Amended Daxing Documents (the date on which such registration is completed, the “Daxing 51% Registration
Date”). WP shall (and shall cause WP SPV 2 to) provide reasonable assistance in such completion. 

  

	 	(iv)	Within five (5) Business Days (or such other time period as mutually agreed between the Shareholders) after the Daxing 51% Registration Date, Vianet shall cause Vianet SPV 2 to pay to or set off with 21Vianet VNB
(provided that Vianet shall ensure that such set-off (x) be completed in full compliance with Applicable Laws and booked in consistent with all requirements under US GAAP) the transfer price as provided
in the Amended Daxing Documents (completion of the transaction steps in this Section 4.1(g) (Restructuring of Daxing Project Company) shall be referred to as the “Daxing Closing”). 

 

	 	(h)	Subscription of Additional Shares in JV Co 1. 

  

	 	(i)	Within ten (10) Business Days (or such other time period as mutually agreed between the Shareholders) after the Daxing 51% Registration Date, (A) Vianet shall subscribe for additional Class A shares to be
issued by JV Co 1 (the number of which shall be the transfer price for the Daxing 51% Equity Transfer set forth in Section 4.1(g)(ii) divided by US$1) in consideration of injecting all Vianet’s shares in Vianet SPV 2 into PropCo 1; and
(B) WP shall subscribe for additional Class B shares to be issued by JV Co 1 (the number of which shall be the transfer price for the Daxing 49% Equity Transfer set forth in Section 4.1(f)(iii) divided by US$1) in consideration of
injecting all WP’s shares in WP SPV 2 into PropCo 1. The Shareholders shall enlarge the authorized share capital of JV Co 1 to the extent necessary in order to complete the foregoing subscription. 

 

	 	(ii)	Immediately upon completion of the subscription set forth in Section 4.1(h)(i), (A) Vianet shall hold Class A shares representing 51% of the total issued and outstanding shares in JV Co 1, and the Investor shall
hold Class B shares representing 49% of the total issued and outstanding shares in JV Co 1; and (B) each of Vianet SPV 2 and WP SPV 2 shall become a wholly-owned Subsidiary of PropCo 1, and Vianet SPV 2 and WP SPV 2 shall jointly own 100%
of the Daxing Project Company. 

  
 14 

	 	(iii)	On or as soon as practicable after the completion of the subscription set forth in Section 4.1(h)(i), JV Co 1 shall deliver to Vianet and WP, respectively:- 

 

	 	(A)	the original of the share certificates for Vianet’s subscription shares and WP’s subscription shares, respectively; and 

  

	 	(B)	a photocopy of the duly updated Register of Members of JV Co 1, evidencing Vianet and WP as the holder of Vianet’s subscription shares and WP’s subscription shares, in each case certified by a director or the
registered office provider of JV Co 1. 

  

	 	(i)	Alternative. Notwithstanding the foregoing provisions, the Shareholders agree that subject to mutual written consent by the Shareholders, the sequence of the transaction steps in Section 4.1(a) (Acquisition of
49% Stake in Yizhuang Project Company) through Section 4.1(h) (Subscription of Additional Shares in JV Co 1) may be adjusted so as to conform with the sequence of completion of the restructuring provided in the Restructuring and Transaction Plan in
respect of the Existing Project Companies; provided, however, that after such adjustment, (i) the transaction steps in respect of at least one of the Yizhuang Project and the Daxing Project shall be completed before the
transaction steps in respect of the Xi’an Project and the Foshan Project; (ii) the commercial object of the Shareholders shall remain the same; and (iii) the transaction steps shall be in compliance with Applicable Laws.

  

	 	(j)	Communication with Investor on Transaction Steps. Vianet shall (and shall cause the Group Companies and its Affiliates to) keep the Investor informed of the status and progress of the transaction steps in this
Section 4.1 (JV Co 1 Closing) and communicate with the Investor at regular intervals. Vianet shall (and shall cause the Group Companies and its Affiliates to), prior to the execution and implementation of the terms thereof, provide to the
Investor copies of the documents relating to the transaction steps and incorporate in such documents all comments relating thereto as reasonably proposed by the Investor. Upon request by the Investor, Vianet shall (and shall cause the Group
Companies and its Affiliates to) provide copies of the executed versions of such documentation to the Investor. Nothing in this Section 4.1(j) (Communication with Investor on Transaction Steps) will in any way prejudice or limit any other rights or
remedies available to the Investor under any Transaction Document. 

  

	 	(k)	Infeasibility of Transaction Steps. Vianet acknowledges and undertakes that if the transaction steps in this Section 4.1 (JV Co 1 Closing) cannot be carried out in accordance with the
provisions thereof due to any reason other than a breach by any of the Shareholders, the Shareholders shall work in good faith to modify the transaction steps to the effect that the Shareholders shall be entitled to the corresponding economic
rights, results and benefits as well as contractual protections that are commensurate with those available to the Shareholders to the extent possible as if the transaction steps completed pursuant to the provisions thereof. Nothing in this Section
4.1(k) (Infeasibility of Transaction Steps) will in any way prejudice or limit any other rights or remedies available to the Investor under any Transaction Document. 

  
 15 

	4.2	JV Co 2 Closing. 

  

	 	(a)	Issuance and Subscription of Each Tranche Closing. 

  

	 	(i)	Upon the terms and subject to the conditions of this Agreement, on a day (each such day, a “Tranche Closing Date”) mutually agreed upon by the Shareholders (which day shall fall
within two (2) Business Days after completion of any of the Yizhuang Closing, the Xi’an Closing, the Foshan Closing and the Daxing Closing as set forth in Section 4.1 (JV Co 1 Closing) (i.e., the relevant Existing Project Company
becomes a Subsidiary of JV Co 1 pursuant to Section 4.1 (JV Co 1 Closing)) and satisfaction or waiver (as applicable) of the JV Co 2 Closing Conditions), JV Co 2 shall, in each tranche of the JV Co 2 Closing (each, a “Tranche
Closing”) corresponding to any of the Yizhuang Closing, the Xi’an Closing, the Foshan Closing and the Daxing Closing, authorize, issue and allot to Vianet, and Vianet shall subscribe for such number of Class A shares in JV
Co 2 (each such tranche of Class A shares, “Vianet’s Tranche Subscription Shares”) as calculated pursuant to the following formula, for a total subscription price (denominated in
US dollars, each such tranche of subscription price, “Vianet’s Tranche Subscription Price”) as calculated pursuant to the following formula in respect of that Tranche Closing:-

 Number of Class A Shares = A ÷ US$1 

Vianet’s Tranche Subscription Price = A (or, solely for the Daxing Project, B) 

Where, 
  

					
	 “A”
	  	=	  	The total consideration (before tax and denominated in US dollars) paid by the Investor or any of its Affiliates for purchasing 49% of the direct or indirect equity interests in the Existing Project Company pursuant to Section 4.1
(JV Co 1 Closing) in respect of that Tranche Closing (for the avoidance of doubt, in the case of each of the Xi’an Project Company and the Foshan Project Company, only 49% of the total consideration (before tax and denominated in US dollars)
for purchasing 100% of the direct or indirect equity interests in each of the Xi’an Project Company and the Foshan Project Company paid by the Investor or any of its Affiliates shall be calculated).
			
	 “B”
	  	=	  	The total consideration (before tax and denominated in US dollars) paid by the Investor or any of its Affiliates for purchasing 49% of the direct or indirect equity interests in the Daxing Project Company pursuant to
Section 4.1 (JV Co 1 Closing) minus the amount of the Daxing Financing Lease.

  
 16 

	 	(ii)	Upon the terms and subject to the conditions of this Agreement, on the Tranche Closing Date, JV Co 2 shall, in each Tranche Closing, authorize, issue and allot to WP, and WP shall subscribe for such number of
Class B shares in JV Co 2 (each such tranche of Class B shares, “WP’s Tranche Subscription Shares”) as calculated pursuant to the following formula, for a total subscription price (each such tranche of
subscription price, “WP’s Tranche Subscription Price”) (if the result of a WP’s Tranche Subscription Price calculated pursuant to the following formula is zero, then WP’s Tranche Subscription Price shall be
deemed as US$1) as calculated pursuant to the following formula in respect of that Tranche Closing:- 

 Number of Class B
Shares = (Number of Vianet’s Tranche Subscription Shares in respect of that Tranche Closing ÷ 49%) * 51% 
 For a Tranche
Closing in respect of any Existing Project other than the Daxing Project, WP’s Tranche Subscription Price = the US dollars equivalent of the Estimated Equity Value (as defined below) in respect of that Tranche Closing (with an exchange rate as
provided in Section 1.3 (Foreign Exchange Rate) applied) – “A” (as defined in Section 4.2(a)(i)) 
 For a Tranche
Closing in respect of the Daxing Project, WP’s Tranche Subscription Price = he US dollars equivalent of the Estimated Equity Value (as defined below) in respect of that Tranche Closing (with an exchanges rate as provided in Section 1.3
(Foreign Exchange Rate) applied) – “A” (as defined in Section 4.2(a)(i)) – (the amount of the Daxing Financing Lease * 51% ÷ 49%) 
  

	 	(iii)	Notwithstanding the foregoing, if any new project has been approved by the board of JV Co 2 and such new project requires funding before the foregoing time schedule for WP to complete the foregoing subscription, WP
shall subscribe for WP’s Tranche Subscription Shares and pay WP’s Tranche Subscription Price in an earlier time schedule to the extent necessary. 

  

	 	(iv)	Upon each Tranche Closing Date, the respective Shareholding Percentages of Vianet and WP in JV Co 2 shall be 49% and 51%. 

  

	 	(b)	Agreed Asset Value and Equity Value. 

  

	 	(i)	The Shareholders have agreed on the value of each of the Existing Projects undertaken by the Existing Project Companies (the “Agreed Asset Value”). 

  
 17 

	 	(ii)	The equity value of an Existing Project Company shall be calculated based on the following formula:- 

Equity Value = C – D - E 

Where, 
  

					
	 “C”
	  	=	  	The Agreed Asset Value for such Existing Project (deducting a diminution in the value of such Existing Project Company as of the Tranche Closing Date pursuant to the provisions of the definition of “Material Adverse
Effect”, if any).
			
	 “D”
	  	=	  	The amount of Net Debt (which shall include adjustments to reflect excess or shortfall of value added tax credit in accordance with the principles as agreed upon by the Shareholders) borne by such Existing Project Company as at the
Tranche Closing Date.
			
	 “E”
	  	=	  	The good faith estimated amount of capital expenditure to be borne by such Existing Project Company or any other Group Company on or after the Tranche Closing Date in order to achieve completion of construction and the delivery
standards of such Existing Project (including the capital expenditure for construction of “white space” (

)) (the “Estimated CapEx”).

  

	 	(iii)	The Shareholders agree that in the absence of manifest errors, each Tranche Closing shall be proceeded based on the estimated equity value of an Existing Project Company (the “Estimated Equity
Value”) which shall be determined pursuant to the following provisions: 

  

	 	(A)	the Shareholders have agreed on a pro forma calculation of the Estimated Equity Value of each Existing Project prepared based on the financial figures shown on the financial statements of the Existing Project Companies
as of 30 September 2016 provided by Vianet to the Investor and based on the formula set forth in Section 4.2(b)(ii) (with any and all reference to the Tranche Closing Date replaced by 30 September 2016), together with the rules and
principles applied in such calculation; 

  

	 	(B)	after the restructuring provided in the Restructuring and Transaction Plan is completed in respect of such Existing Project Company, Vianet shall immediately notify the Investor in writing; 

  
 18 

	 	(C)	the Shareholders shall instruct KPMG to immediately review and determine, in good faith and in rules and principles consistent with those mutually agreed upon by the Shareholders, the estimated equity value of such
Existing Project Company based on the financial statements of such Existing Project Company as of the last day (the “Reference Date”) of the month immediately preceding to the month in which the completion date of the
restructuring provided in the Restructuring and Transaction Plan in respect of such Existing Project Company falls and based on the formula set forth in Section 4.2(b)(ii) (with any and all reference to the Tranche Closing Date replaced by the
Reference Date) (Vianet shall provide KPMG with all information and materials required for the foregoing review and determination. The cost of such review and determination shall be borne by WP; and 

 

	 	(D)	no later than the day falling two (2) Business Days prior to the Tranche Closing Date, the Shareholders shall cause KPMG to notify the Shareholders the Estimated Equity Value of such Existing Project Company
determined pursuant to the foregoing provisions. 

  

	 	(iv)	In the absence of manifest errors, the Shareholders shall proceed with the relevant Tranche Closing based on the Estimated Equity Value determined by KPMG pursuant to the provisions of Section 4.2(b)(iii), with possible
post-JV Co 2 Closing adjustment pursuant to the provisions of Section 4.3 (Post-JV Co 2 Closing Adjustment). 

  

	 	(v)	Notwithstanding the foregoing, Vianet undertakes to the Investor that unless otherwise mutually agreed upon by the Shareholders, any and all of the Existing Projects will be injected into JV Co 1 and its Subsidiaries in
consistent with (or upon completion of the construction of such Existing Projects, such Existing Projects will be in consistent with) the delivery standards (or new standards as a result of step adjustment under Section 4.1(k) (Infeasibility of
Transaction Steps)) of such Existing Project and a breach of the foregoing undertaking shall be deemed as a Material Breach. 

  

	 	(c)	JV Co 2 Closing; Delivery. 

  

	 	(i)	Each Tranche Closing shall take place, remotely via the exchange of documents and signatures, on the Tranche Closing Date after satisfaction of all the conditions set forth in Section 1 of Exhibit
4.2(c)(i) (“WP’s JV Co 2 Closing Conditions” or the “JV Co 2 Closing Conditions”) to the extent that such conditions are relating to that Tranche Closing, or at
such other time and place the Shareholders may mutually agree upon. 

  

	 	(ii)	On each Tranche Closing Date, Vianet and WP shall respectively pay Vianet’s Tranche Subscription Price and WP’s Tranche Subscription Price (collectively, a “Tranche Payment”) in
immediately available funds to the designated bank account of JV Co 2 (for the avoidance of doubt, Vianet’s Tranche Subscription Price in respect of each of the Xi’an Project and the Foshan Project shall be paid pursuant to Section
4.1(d)(iv) and Section 4.2(e)(iv) respectively, and WP’s Tranche Subscription Price in respect of each of the Xi’an Project and the Foshan Project shall be paid on the same date as the date of the foregoing payment of Vianet’s Tranche
Subscription Price in respect of the Xi’an Project and the Foshan Project, respectively). JV Co 2 shall provide details of its bank account information to the Shareholders at least five (5) Business Days prior to the Tranche Closing Date.

  
 19 

	 	(iii)	On or as soon as practicable after each Tranche Closing Date, JV Co 2 shall deliver to Vianet and WP, respectively:- 

  

	 	(A)	the original of the share certificates for Vianet’s Tranche Subscription Shares and WP’s Tranche Subscription Shares, respectively; 

 

	 	(B)	a photocopy of the duly updated Register of Members of JV Co 2, evidencing Vianet and WP as the holder of Vianet’s Tranche Subscription Shares and WP’s Tranche Subscription Shares, in each case certified by a
director or the registered office provider of JV Co 2; 

  

	 	(C)	to the extent that there is any update, a photocopy of the duly updated Register of Directors of JV Co 2, evidencing the director(s) respectively appointed by Vianet and WP as the director(s) of JV Co 2, certified by a
director or the registered office provider of JV Co 2 (only applicable when there is a change of the directors of JV Co 2 for such tranche of the JV Co 2 Closing); and 

 

	 	(D)	to the extent that there is any update, a photocopy of the duly updated JV Co 2 Articles certified by a director or the registered office provider of JV Co 2 (only applicable when there is a change of JV Co 2 Articles
for such tranche of the JV Co 2 Closing). 

  

	 	(d)	JV Co 2 Closing and JV Co 2 Closing Date. The Tranche Closings shall collectively be referred to as the “JV Co 2 Closing” and the date of the last Tranche Closing Date (irrespective of
whether all of the four (4) JV Co 2 Closings occur) shall also be referred to as the “JV Co 2 Closing Date”. Notwithstanding any provisions to the contrary herein, if there occurs a Material
Adverse Effect to any Group Company or Project after the date of this Agreement and prior to the JV Co 2 Closing Date or if any Tranche Closing fails to occur pursuant to the provisions hereof, which Material Adverse Effect or failure (as
applicable) is not cured within forty-five (45) Business Days after the occurrence thereof or any extension thereof mutually agreed upon by the Shareholders (solely for this Section 4.2(d), items (b)(ii) and (b)(iii) in the definition of
“Material Adverse Effect” as set forth in Exhibit 1.1 shall not apply in determining whether a Material Adverse Effect occurs), the Investor shall be entitled to elect in its sole discretion to: (i) refuse to complete any step
provided in Section 4.1 (JV Co 1 Closing) or any JV Co 2 Closing that has not yet been completed at the time of occurrence of such Material Adverse Effect and refuse to make any further investment in any JV Co; and/or (ii) unwind any or
all transactions (including without limitation, any step provided in Section 4.1 (JV Co 1 Closing) and any JV Co 2 Closing) that have been completed at the time of occurrence of such Material Adverse Effect, in each case without any default or
other liabilities on the Investor; and/or terminate this Agreement pursuant to the provisions of Section 15 (Termination). For the avoidance of doubt, each Party is entitled to elect to proceed with the transactions contemplated herein (with
the corresponding deduction in the Agreed Asset Value, where applicable) without prejudice to any other remedy it is entitled to. 

  
 20 

	4.3	Post-JV Co 2 Closing Adjustment. 

  

	 	(a)	Closing Statement. Within thirty (30) days after the JV Co 2 Closing Date, Vianet shall prepare, or cause to be prepared, and deliver to the Investor an unaudited financial statement (the “Closing
Statement”) of each of the Existing Project Company, which shall set forth a fair calculation of the equity value of the relevant Existing Project Company as at the correspondent Tranche Closing Date in rules and principles consistent
with those applied in calculating the Estimated Equity Value of such Existing Project Company and based on the formula set forth in Section 4.2(b)(ii). 

  

	 	(b)	Review Period. Upon receipt from Vianet of the Closing Statement, the Investor shall have thirty (30) days (the “Review Period”) to review the same. If the Investor disagrees with
Vianet’s computation of the Closing Statement, the Investor may, on or prior to the last day of the Review Period, deliver a notice to Vianet (the “Notice of Objection”), which sets forth its objections to Vianet’s
calculation of the Closing Statement. 

  

	 	(c)	Final Closing Statement. 

  

	 	(i)	Unless the Investor delivers the Notice of Objection to Vianet within the Review Period, the Investor shall be deemed to have accepted the Closing Statement prepared by Vianet and such Closing Statement shall be final,
conclusive and binding. 

  

	 	(ii)	If the Investor delivers the Notice of Objection to Vianet within the Review Period, the Shareholders shall, during the thirty (30) days period following such delivery or any mutually agreed extension thereof, use
their commercially reasonable efforts to reach agreement on the disputed items and amount in order to finalize the Closing Statement. 

  

	 	(iii)	If, at the end of the thirty (30)-day period or any mutually agreed extension thereof as provided in Section 4.3(c)(ii), the Shareholders are unable to resolve their
disagreements, the Shareholders shall jointly retain and refer their disagreements to a Big Four Accounting Firm mutually acceptable to the Shareholders (the “Independent Expert”). The Shareholders shall instruct the
Independent Expert immediately to review this Section 4.3 (Post-JV Co 2 Closing Adjustment) and to determine solely with respect to the disputed items and amounts so submitted whether and to what extent,
if any, the Closing Statement requires adjustment. The Shareholders shall make available to the Independent Expert all relevant materials and information reasonably requested by the Independent Expert. The Shareholders shall request that the
Independent Expert deliver to the Shareholders, as soon as practicable but in no event later than thirty (30) days after its retention, a report which sets forth its resolution of the disputed items and amounts and its adjusted Closing
Statement; provided, however, that in no event shall the equity value of each Project Company as determined by the Independent Expert be less than the Investor’s calculation of the same nor more than Vianet’s calculation of
the same. The decision of the Independent Expert shall be final, conclusive and binding on the Shareholders. The cost and expenses of the Independent Expert shall be borne and paid by JV Co 2. 

  
 21 

	 	(d)	Adjustment. 

  

	 	(i)	“Final Equity Value” means the equity value of each Existing Project Company as determined pursuant to the Closing Statement that is finalized and becomes conclusive and binding on the
Shareholders pursuant to the provisions of Section 4.3(c) (Final Closing Statement). 

  

	 	(ii)	If the total Final Equity Value of all Existing Project Companies is more than the Estimated Equity Value, then the Investor shall, within fifteen (15) Business Days after the determination of the Final Equity
Value, pay to JV Co 2 in immediately available funds, as an adjustment to WP’s Tranche Subscription Prices, an amount equal to the difference between the Final Equity Value and the Estimated Equity Value. 

 

	 	(iii)	If the total Final Equity Value of all Existing Project Companies is less than the Estimated Equity Value, then (A) subject to Shareholders’ consent, JV Co 2 shall, within fifteen (15) Business Days after
the determination of the Final Equity Value, refund to the Investor in immediately available funds, as an adjustment to WP’s Tranche Subscription Prices, an amount equal to the difference between the Estimated Equity Value and the Final Equity
Value or (B) if either Shareholder disagrees with item (A) above, then at the option of Vianet, either of the following shall apply: (1) Vianet shall, within fifteen (15) Business Days after the determination of the Final Equity
Value, pay to JV Co 2 in immediately available funds, as an adjustment to the Vianet’s Tranche Subscription Prices, an amount equal to the difference (between the Estimated Equity Value and the Final Equity Value) divided by 51% and multiplied
by 49%, or (2) Vianet’s Shareholding Percentage in JV Co 2 shall, within fifteen (15) Business Days after the determination of the Final Equity Value, be diluted accordingly as compensation for the difference (between the Estimated
Equity Value and the Final Equity Value). 

  

	 	(e)	Release of Onshore Escrow Account. Within five (5) Business Days after completion of the post-JV Co 2 Closing adjustment as provided in this Section 4.3 (Post-JV Co 2 Closing Adjustment), the Investor shall remove its designated signatory to the Onshore Escrow Account. 

  

	 	(f)	Additional CapEx. Any capital expenditure in order to achieve completion of construction of an Existing Project in excess of the Estimated CapEx of such Existing Project as determined during the determination of
the Final Equity Value shall be paid and borne by Vianet (but not any Group Company). If for whatever reason any such excessive capital expenditure is paid by any Group Company, Vianet shall pay in full the same to such Group Company within three
(3) Business Days after payment by such Group Company of such capital expenditure. If there is any disagreement among the Shareholders as to the actual amount of the foregoing capital expenditure, the Shareholders shall refer such disagreement
to a Big Four Accounting Firm mutually acceptable to the Shareholders for review and determination and the determination made by such Big Four Accounting Firm shall be final, conclusive and binding on the Shareholders. If the Estimated CapEx of an
Existing Project is more than the actual capital expenditure in order to achieve completion of construction of such Existing Project, the excess amount shall be reimbursed to Vianet in the same manner and in a
tax-efficient way to be agreed between the Shareholders. 

  
 22 

	4.4	Shareholders’ Upsize Option. 

  

	 	(a)	Investor’s Upsize Option. The Investor shall be entitled to an option (the “Investor’s Upsize Option”), exercisable within
twenty-four (24) months after the JV Co 2 Closing Date (the “Investor’s Option Period”), to subscribe for, in one lump sum or in different tranches, additional Class B shares to be
issued by JV Co 2 based on a pre-money valuation of JV Co 2 calculated pursuant to the following formula at an aggregate amount of subscription prices of up to US$100,000,000 by issuing an Investor’s
Option Exercise Notice pursuant to Section 4.4(b) (Investor’s Option Exercise Notice) :- 

 Valuation = F + G 

Where, 
  

					
	 “F”
	  	=	  	The total amount of WP’s Tranche Subscription Prices paid by WP (as adjusted pursuant to Section 4.3 (Post-JV Co 2 Closing Adjustment)) and Vianet’s Tranche Subscription Prices paid by Vianet.
			
	 “G”
	  	=	  	Any subsequent paid-in capital funded by the Shareholders since the JV Co 2 Closing Date but prior to that tranche of the Investor’s Upsize Option, if any.

  

	 	(b)	Investor’s Option Exercise Notice. The Investor may exercise the Investor’s Upsize Option during the Investor’s Option Period by serving an at least one (1)-month prior written notice (the
“Investor’s Upsize Option Exercise Notice”) to Vianet and JV Co 2, which notice shall specify (i) the number of the Investor’s Option Subscription Shares to be
subscribed; and (ii) the amount of subscription price for the Investor’s Upsize Option, which shall be no less than US$10,000,000 (provided that if the remaining balance of the Investor’s Upsize Option is less than US$10,000,000, such
minimum amount shall not apply). 

  
 23 

	 	(c)	Vianet’s Upsize Option. If the Investor elects to exercise the Investor’s Upsize Option, Vianet shall be entitled to an option (“Vianet’s Upsize
Option”) to, by issuing a written notice to the Investor and JV Co 2 within thirty (30) days after receipt of the Investor’s Upsize Option Exercise Notice, subscribe for a number of additional Class A shares to be
issued by JV Co 2 equal to the number of additional Class B shares subscribed for by the Investor divided by 51% and multiplied by 49% at the same per share subscription price as that of the Investor. 

 

	 	(d)	Shareholders’ Actions. The Shareholders shall (and shall cause their respective appointed directors to) take any and all actions to facilitate the Investor’s Upsize Option and Vianet’s Upsize
Option if so exercised. 

  

	4.5	Failure to Fund. 

  

	 	(a)	Failure to Fund. If any Shareholder (the “Non-funding Shareholder”) fails to pay all or part of its own portion of any Tranche
Payment to JV Co 2 when due as described in Section 4.2 (JV Co 2 Closing), then: (i) such Non-funding Shareholder shall have a period of thirty (30) days or any extension thereof mutually agreed
upon by the Shareholders to cure its breach; and (ii) if such breach is not cured within the foregoing thirty (30)-day period, such Non-funding Shareholder shall
pay to the JV Co 2 a late payment interest on the overdue amount at a daily interest rate of 0.05% and, at the election of any of the other Shareholder (the “Funding
Shareholder”), Section 4.5(b) (Funding Shareholder’s Option) shall apply. 

  

	 	(b)	Funding Shareholder’s Option. The Funding Shareholder may choose, in its sole discretion, to fund part of or the entire amount of the Non-funding Shareholder’s
remaining balance of such Tranche Payment to JV Co 2 in lieu of the Non-funding Shareholder; provided, however, that:- 

 

	 	(i)	the Funding Shareholder shall have duly paid its own portion of such Tranche Payment; and 

  

	 	(ii)	any other remedies or rights available to the Funding Shareholder under this Agreement or other Transaction Documents shall not be limited or prejudiced in any respect. 

For the avoidance of doubt, after the Funding Shareholder actually pays the additional amount, (x) the
Non-funding Shareholder may not cure its non-funding breach by providing additional funding; and (y) the late payment interest provided in Section 4.5(a) (Failure
to Fund) shall cease to accrue. 
  

	 	(c)	Dilution. The Non-funding Shareholder’s Shareholding Percentage in JV Co 2 shall be diluted accordingly. 

 

	4.6	Emergency Loans. 

  

	 	(a)	Shortfall Event. In the event that, 

  

	 	(i)	a funding deficit of a Group Company being identified by the board of JV Cos or a Shareholder at any time on the basis of the management accounts of said Group Company and the Annual Business Plan and Budget (a
“Shortfall Event”); 

  
 24 

	 	(ii)	such Shortfall Event shall impair or is likely to impair the normal operation of said Group Company (for the avoidance of doubt, the funding deficit for seeking a new Project shall not be deemed as a Shortfall Event,
unless any Group Company has already entered into any binding commitment to invest in or acquire such new Project); and 

  

	 	(iii)	within ten (10) days of the Shortfall Event being identified, the Shareholders are not able to unanimously agree to fulfil such deficit by raising additional funds: (A) pursuant to Section 4.7 (Subsequent
Funding to JV Cos); or (B) from financial institutions or other legitimate sources, 

 then, an emergency loan may be
advanced to JV Cos by any of the Shareholders (an “Emergency Loan”) pursuant to Sections 4.6(b) (Interest of Emergency Loan) to 4.6(e) (Shareholders’ Efforts) below; provided, however, that the
Shareholder intending to advance the Emergency Loan shall serve a prior ten (10)-day written notice to the other Shareholder so that the other Shareholder may participate in such Emergency Loan in proportion
to its Shareholding Percentage in JV Co 2 (or JV Co 1, as applicable). If the other Shareholder fails to advance the Emergency Loan on a pro rata basis within ten (10) days after receipt of the foregoing notice, the
Shareholder intending to advance the Emergency Loan may provide the full amount of the Emergency Loan. 
  

	 	(b)	Interest of Emergency Loan. Each Emergency Loan shall be structured as a secured debt of JV Cos or the relevant Group Company and shall bear interest at 15% per annum, and to the extent the rate of interest is
limited by operation of law, the Shareholders shall identify and implement alternative and lawful means to maintain the economic returns of such Emergency Loan at the rate of 15% per annum. To the extent permitted under Applicable Law and subject to
other financing documents executed with a third Shareholder, each Emergency Loan shall be senior to all other claims or debts of JV Cos or the relevant Group Company. 

 

	 	(c)	Repayment of Emergency Loan. If an Emergency Loan is not fully repaid within six (6) months after the initial funding of such Emergency Loan, the Shareholder funding such Emergency Loan shall have the right
to convert its outstanding principal and interest of such Emergency Loan into fully-paid shares (Class A shares in the case of Vianet and Class B shares in the case of the Investor) of JV Co 2 (or JV Co 1, as applicable) at the post-money
valuation of JV Co 2 (or JV Co 1, as applicable) for any investment made immediately prior to such conversion. 

  

	 	(d)	Conversion upon Material Breach. Notwithstanding any of the foregoing, all outstanding principal and accrued interest in respect of all Emergency Loans provided by the Investor shall become immediately due and
payable or convertible into fully-paid shares (Class A shares in the case of Vianet and Class B shares in the case of the Investor) of JV Co 2 (or JV Co 1, as applicable) at the time a Material Breach occurs. 

  
 25 

	 	(e)	Shareholders’ Efforts. The Shareholders shall:- 

  

	 	(i)	use their commercially reasonable efforts to avoid any Shortfall Event; 

  

	 	(ii)	if any Emergency Loan is advanced, use their Best Efforts to procure that the outstanding principal of the Emergency Loan and interest accrued thereon shall be repaid and paid in full within six (6) months after
the initial funding of such Emergency Loan; and 

  

	 	(iii)	if any amount (whether the principal or interest) fails to be repaid or paid within six (6) months after the initial funding of such Emergency Loan, procure that the Group Companies and the directors of the
relevant Group Companies shall take any and all the necessary actions for obtaining any Emergency Loan and the conversion of such loan into equity as provided under this Section 4.6 (Emergency Loans). 

 

	4.7	Subsequent Funding to JV Cos. 

  

	 	(a)	Cash Sweep or Distribution. The Shareholders agree that to the extent there is any available working capital in JV Co 1 (or its Subsidiaries) and upon mutual consent of the Shareholders (provided that the
Shareholders shall work towards the goal of maximizing the utilization rate of the available working capital and neither Shareholder shall unreasonably withhold its consent), the Shareholders shall cause JV Co 1 (or a Subsidiary of JV Co 1) to:
(i) extend to JV Co 2 (or a Subsidiary of JV Co 2) certain available working capital (excluding requisite reserve to ensure the normal operation and sufficient working capital of JV Co 1 and its Subsidiaries) at an interest rate equal to LIBOR;
or (ii) distribute such available working capital to the Shareholders (or their respective designated Affiliates) based on their respective then-prevailing shareholding percentages in JV Co 1 in a
tax-efficient manner (with a goal of not incurring any additional cost or risk to any of the Shareholders). 

  

	 	(b)	JV Co 2’s Funding Need. If at any time or from time to time additional funds in excess of the JV Co 2 Closing are required by JV Co 2 and its Subsidiaries that cannot be satisfied pursuant to Section 4.7(a)
(Cash Sweep or Distribution), such funding requirements will be addressed in one or more of the following manners:- 

  

	 	(i)	The Shareholders may subscribe for additional shares in JV Co 2 at a subscription price and based on terms and subject to the conditions as mutually agreed by the Shareholders in writing in proportion to their
respective then-prevailing Shareholding Percentages in JV Co 2; or 

  

	 	(ii)	The Shareholders may introduce third party investment in the Group Companies. 

  

	 	(c)	JV Co 1’s Funding Need. If at any time or from time to time additional funds are required by JV Co 1 and its Subsidiaries, such funding requirements will be addressed in one or more of the following
manners:- 

  

	 	(i)	Before considering the manners set forth in Section 4.7(c)(ii) and Section 4.7(c)(iii), to the extent there is any available working capital in JV Co 2 (or its Subsidiaries) and upon mutual consent of the Shareholders,
the Shareholders shall cause JV Co 2 (or a Subsidiary of JV Co 2) to extend to JV Co 1 (or a Subsidiary of JV Co 1) a loan in a principal amount of the lower of the amount of such funding need of JV Co 1 and the amount of such available working
capital in JV Co 2 (or its Subsidiaries) at an interest rate equal to LIBOR; 

  
 26 

	 	(ii)	The Shareholders may subscribe for additional shares in JV Co 1 at a subscription price and based on terms and subject to the conditions as mutually agreed by the Shareholders in writing in proportion to their
respective then-prevailing Shareholding Percentages in JV Co 1; or 

  

	 	(iii)	The Shareholders may introduce third party investment in the Group Companies. 

  

	 	(d)	JV Co 3’s Funding Need. If at any time or from time to time additional funds are required by JV Co 3 and its Subsidiaries, such funding requirements will be addressed in one or more of the following
manners:- 

  

	 	(i)	Before considering the manners set forth in Section 4.7(d)(ii) and Section 4.7(d)(iii), to the extent there is any available working capital in JV Co 2 (or its Subsidiaries), the Shareholders shall cause JV Co 2 (or a
Subsidiary of JV Co 2) to extend to JV Co 3 (or a Subsidiary of JV Co 3) a loan in a principal amount of the lower of the amount of such funding need of JV Co 3 and the amount of such available working capital in JV Co 3 (or its Subsidiaries) at an
interest rate equal to LIBOR; 

  

	 	(ii)	The Shareholders may subscribe for additional shares in JV Co 3 at a subscription price and based on terms and subject to the conditions as mutually agreed by the Shareholders in writing in proportion to their
respective then-prevailing Shareholding Percentages in JV Co 3; or 

  

	 	(iii)	The Shareholders may introduce third party investment in the Group Companies. 

  

	4.8	Vianet’s Optional Additional Share in Future Projects. Within six (6) months after the date when the board of JV Co 2 resolves to pursue a new Project, Vianet shall have the right to issue
a written notice to the Investor requesting to increase Vianet’s shareholding in such new Project to up to 51% for the purpose of consolidation of such new Project into Vianet at the cost at which a Group Company actually acquires such new
Project. Vianet and the Investor shall discuss in good faith and use commercially reasonable efforts to facilitate such request from Vianet. In the event that Vianet’s 51% shareholding is achieved in a structure that is outside the existing
structure of JV Co 1 and JV Co 2, then the Parties shall ensure that the Investor’s rights and interests in such Project shall be consistent with those outlined in this Agreement to the extent applicable. 

 

	4.9	Potential Partnership with Zhongwei City Government. Subject to the review of detailed terms and unanimous approval by the board of JV Co 2, JV Co 2 may make Project level
co-investments with the government of Zhongwei City, Ningxia

 or its subordinated entities. 

  
 27 

	5.	MASTER SERVICE ARRANGEMENT 

  

	5.1	Commitment. Vianet undertakes that it shall (or it shall cause its Affiliates to) lease each of the Existing Projects and receive master services in respect of the same from the Group Companies for a term of at
least fifteen (15) years after the Tranche Closing corresponding to such Existing Project (in three five (5)-year intervals with automatic renewals). The Shareholders undertake that each of the Existing Project Companies shall sub-contract operation and maintenance service in respect of each of the Existing Projects to Vianet (or its Affiliates) for a term of at least fifteen (15) years after the Tranche Closing corresponding to such
Existing Project (in three five (5)-year intervals with automatic renewals). 

  

	5.2	Vianet’s ROFO and Group Company’s ROFO. 

  

	 	(a)	Vianet’s ROFO Mechanism. With respect to any future Project to be undertaken by any Group Company, the Shareholders shall cause such Group Company to, before the earlier of (i) entering into a
definitive binding wholesale lease or master service agreement with a third party in respect of 50% or more of the area or capacity of such future Project and (ii) three (3) months prior to the time when such future Project becomes ready to
use, issue a written notice to Vianet requesting Vianet’s decision on whether to lease such future Project. Vianet shall reply in writing to such Group Company within two (2) months after receipt of the foregoing written notice issued by
such Group Company. If Vianet decides to lease such future Project, Vianet shall reply in writing within the foregoing two (2)-month period with an express rate of rental (the “Vianet Offered Rental”), and such
Group Company may elect to lease such future Project to Vianet or to any third party at a rate of rental no less than the Vianet Offered Rental (and if such Group Company elects to lease such future Project to Vianet, Vianet and such Group Company
shall enter into a definitive agreement within two (2) months after such election). If Vianet fails to make the foregoing reply to such Group Company within the foregoing two (2)-month period or a definitive agreement fails to be entered into
within the foregoing subsequent two (2)-month period, such Group Company shall be entitled to lease to or otherwise cooperate with any third party in respect of such future Project at any rate of rental as such Group Company may deem fit. For the
avoidance of doubt, Vianet shall (and shall cause its appointed directors to) exercise its rights as a shareholder (or a director, as applicable) of the Group Company towards the best interest of such Group Company. 

 

	 	(b)	Exemptions. The provisions of Section 5.2(a) (ROFO Mechanism) shall not apply to: (i) any future Project to be acquired by any Group Company already occupied or engaged with leases and tenants; (ii) any
future Project under any joint venture or other similar cooperation methods between any Group Company, on one hand, and one or more third parties, on the other hand; or (iii) any lease of any future Project in respect of less than 50% of the
area or capacity of such future Project. 

  

	 	(c)	Group Company’s ROFO Mechanism. Without prejudice to Vianet’s obligations under Section 9.5 (Exclusivity and Non-Competition), 

  
 28 

	 	(i)	with respect to any need by Vianet or any of its Affiliates (solely for the purpose of this Section 5.2(c) (Group Company’s ROFO), excluding any Group Company) of any leased or partnered data center project
(provided that Vianet or any of its Affiliates intends to take up 50% or more of the area or capacity of such data center project), Vianet shall (and shall cause such Affiliates to), before entering into an agreement with a third party in respect of
such need of data center project, issue a written notice to the Investor requesting the Investor’s decision on whether to, via JV Co 2 and its Subsidiaries, undertake such data center project, which notice shall specify, among other things, the
specific city of such data center project. The Investor shall reply in writing to Vianet (or its Affiliate, as applicable) within two (2) month after receipt of the foregoing written notice issued by Vianet (or its Affiliate, as applicable). If
the Investor decides to, via JV Co 2 and its Subsidiaries, undertake such data center property by issuing a written notice to Vianet (or its Affiliate, as applicable), Vianet shall (or shall cause its Affiliate to, as applicable) negotiate in good
faith with the Investor, JV Co 2 or its Subsidiary, within two (2) months after issuance of such written notice by the Investor, to reach a definitive agreement with JV Co 2 or its Subsidiaries. If the Investor fails to issue the foregoing
written notice to Vianet (or its Affiliate, as applicable) within the foregoing two (2)-month period or a definitive agreement fails to be reached within the foregoing subsequent two (2)-month period, Vianet (or its Affiliate, as applicable) shall
be entitled to cooperate with a third party in respect of such data center project upon terms and conditions no more favorable than those offered to JV Co 2 during the foregoing two (2)-month negotiation period (if any). 

 

	 	(ii)	with respect to any project with the sole use as data centers (excluding those mixed-use projects with a part thereof being a data center (i.e.,

)) proposed to be acquired by Vianet or any of its Affiliates (solely for the purpose of this Section 5.2(c) (Group Company’s ROFO), excluding any Group Company), Vianet shall (and shall cause such Affiliates to),
before entering into an agreement with a third party in respect of the acquisition of such data center project, issue a written notice to the Investor, requesting the Investor’s decision on whether to, via JV Co 2 and its Subsidiaries,
undertake such data center project. The Investor shall reply in writing to Vianet (or its Affiliate, as applicable) within one (1) month after receipt of the foregoing written notice issued by Vianet (or its Affiliate, as applicable), and
during such one (1)-month period, the Investor may evaluate such data center project and discuss with the seller of such data center project, and Vianet shall (and shall cause its Affiliates) to provide commercially reasonable assistance. If the
Investor decides to, via JV Co 2 and its Subsidiaries, acquire such data center project by issuing a written notice to Vianet (or its Affiliate, as applicable), Vianet shall not (or shall cause its Affiliate not to, as applicable) acquire such data
center project; provided that if JV Co 2 and its Subsidiaries fail to complete the acquisition of such data center project, Vianet (or its Affiliates, as applicable) may acquire such data center project, and in such case JV Co 2 and its Subsidiaries
shall provide commercially reasonable assistance. If the Investor fails to issue the foregoing written notice to Vianet (or its Affiliate, as applicable) within the foregoing one (1)-month period, Vianet (or its Affiliate, as applicable) shall be
entitled to acquire such data center project. 

  
 29 

	5.3	Form of Master Service Agreement. 

  

	 	(a)	Master Service Agreement for Existing Projects. VNET and Vianet shall (or shall cause their Affiliates to) enter into a master service agreement with the relevant Group Company in respect of each of the Existing
Projects as soon as practicable after the date hereof but in no event later than the correspondent Tranche Closing Date of such Existing Project in such form and substance as mutually agreed upon by the Shareholders (with possible adjustments to be
mutually agreed by the Shareholders), with standards of service fees payable by Vianet or its Affiliates to the relevant Group Companies with respect to each Existing Project as mutually agreed upon by the Shareholders (any amendment thereto or
termination thereof without the prior consent of the Investor shall be deemed as a Material Breach by Vianet and VNET). Notwithstanding any other provisions in Section 6.02(a) of the Master Service Agreement for the Existing Projects, the Parties
may re-allocate the RMB amount in Section 6.02(a) in the Master Service Agreement among the Existing Projects for a particular year, provided that the total amount for all the Existing Projects remains the
same for that year (for the avoidance of doubt, Section 6.02(b) of the Master Service Agreement for the Existing Projects shall not be affected). 

  

	 	(b)	Master Service Agreement for Future Projects. For each future Project that Vianet leases and receives master services from the relevant Group Company, Vianet shall (or shall cause its Affiliates to) enter into a
master service agreement with such Group Company in such form and substance as mutually agreed upon by the Shareholders with reference to the form mutually agreed upon by the Shareholders for the Existing Projects. 

 

	 	(c)	Form of Master Service Agreement. Each such service agreement so executed shall be referred to as a “Master Service Agreement”. 

 

	5.4	Form of Sub-Contracting Agreement. Vianet shall (or shall cause its Affiliates to) enter into a sub-contracting agreement with the
relevant Group Company in respect of each of the Existing Projects together with the Master Service Agreement in respect of such Existing Project in such form and substance as mutually agreed upon by the Shareholders for sub-contracting certain services under the Master Services Agreement to Vianet or its Affiliates, with standards of sub-contracting service fees payable by the relevant Group
Companies to Vianet or its Affiliates with respect to each Existing Project to be mutually agreed upon by the Shareholders. For each future Project that Vianet leases in the entirety of such Project and receives master services from the relevant
Group Company, Vianet shall have a priority right to be sub-contracted with certain services under the Master Services Agreement under equal terms and conditions, and if Vianet (of its Affiliates) is selected
as a sub-contractor pursuant to the preceding sentence, Vianet shall (or shall cause its Affiliates to) enter into a sub-contracting agreement with such Group Company in
such form and substance as mutually agreed upon by the Shareholders (any amendment thereto or termination thereof without the prior consent of the Investor or its nominated director shall be deemed as a Material Breach by Vianet). Each such service
agreement so executed shall be referred to as a “Sub-Contracting Agreement”. 

  
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	6.	PROJECT MANAGEMENT 

  

	6.1	Project Management. 

  

	 	(a)	Management Service Agreement. Upon the terms and subject to the conditions of the Management Service Agreement, JV Co 3 and its Subsidiaries shall be fully responsible for overall management of the Projects
engaged by the relevant Group Companies. The Shareholders shall procure that the relevant Project Company and the Management Company shall execute a management service agreement (each, the “Management Service
Agreement”) in form and substance agreed by the relevant Project Company and the Management Company, which shall include market standard provisions in respect of the relevant Group Company’s right to terminate the Management
Service Agreement in the event of a material breach by the Management Company thereunder. 

  

	 	(b)	Staffing. The Shareholders shall cause JV Co 3 to recruit experienced industry professionals for the Management Company to form a data center development and management team satisfactory to the Shareholders.

  

	6.2	Scope of the Management Services. The management services provided by the Management Company to each Project Company shall include the implementation of any decision or instructions of the board or adopted at the
shareholders level of the relevant Group Company in respect of all of the operational activities in relation to the sourcing, design, development, construction, operation, maintenance, promotion, marketing and sales and/or leasing of the applicable
Project, including accounting, management, consulting, assisting the Project Company in obtaining any Government Approval required for development, sale and/or leasing of the Project and other necessary services. 

 

	6.3	Fees and Payment. The Management Company shall be entitled to receive fees at a rate mutually agreed by the Management Company and the relevant Project Company for and based on the management services provided by
it to each Project Company. 

  

	6.4	Termination and Replacement. If:- 

  

	 	(a)	a potential buyer of any Project or Project Company requires that the Management Service Agreement for such Project shall be terminated prior to or concurrently with the closing of the transfer of the Project or the
Project Company; or 

  

	 	(b)	any Project or Project Company is selected and transferred to any Shareholder pursuant to the provisions of Section 13.4 (Dissolution Exit), 

then, the Shareholders shall:- 
  

	 	(x)	in the case of item (a) above, upon prior written request of the potential buyer, procure that the relevant Management Service Agreement shall be terminated after a definitive and binding transfer agreement has
been entered into with the potential buyer in respect of the transfer of the relevant Project or Project Company and the completion under the agreement is not subject to pre-conditions or the pre-conditions have been fulfilled or waived (but prior to the closing of such transfer), and procure the handover of the relevant management service matters of the Project or the Project Company pursuant to the
relevant provisions of the Management Service Agreement; and 

  

	 	(y)	in the case of item (b) above, upon prior written request of the Shareholder to which the relevant Project or Project Company is transferred, procure that the relevant Management Service Agreement shall be
terminated immediately. 

  

	6.5	Incentive. The Shareholders agree that JV Co 2 and JV Co 3 shall each establish an employee share subscription plan (“ESSP”) whose principles are outlined in Exhibit 6.5 with
details to be based on market standard for platforms of similar scale and nature; provided, however, that ESSP in each of JV Co 2 and JV Co 3 shall be subject to the unanimous approval by the board of directors of the respective JV Co.

  
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	7.	EXCESS CASH DISTRIBUTION 

  

	7.1	Excess Cash. After the JV Co 2 Closing Date, to the extent that the Group Companies have no new data center investment opportunities unanimously approved by the board of JV Cos in accordance with
Section 10.3 (Reserved Matters) hereunder for any period of consecutive 360 days or more, each Shareholder may, by serving a written notice (the “Excess Cash Distribution Notice”) to the other Shareholder at any time
thereafter, require JV Cos to distribute (to the extent permitted by Applicable Law) any or all of the Excess Cash through dividends or by such other means (including but not limited to
onshore-to-offshore back-to-back loans) as the Shareholders may deem fit, provided that
if such Excess Cash is not distributed to the Shareholders by means of dividends, the Shareholders shall refund all or part of such distributed Excess Cash in a timely manner to satisfy subsequent funding needs of JV Cos, if any. 

The Shareholders shall procure that the Group Companies shall take any and all necessary actions to expedite the distribution of the Excess
Cash to the effect that the Shareholders shall receive the distribution of the Excess Cash in full within thirty (30) days after the delivery of the Excess Cash Distribution Notice. 

 

	7.2	Good Faith Determination. Notwithstanding any other provisions in Section 7.1 (Excess Cash), the Shareholders may determine in good faith to distribute any Excess Cash from time to time by such means as
mutually agreed to by the Shareholders. 

  

	8.	REPRESENTATIONS AND WARRANTIES 

  

	8.1	Mutual Representations and Warranties. As at date of this Agreement and each Tranche Closing Date, each Party hereby represents and warrants to the other Parties as follows:- 

 

	 	(a)	Incorporation. It is duly incorporated and validly existing under the laws of the place of its incorporation and it has the requisite power and authority to conduct its business in accordance with its business
license, certificate of incorporation, memorandum and articles of association, or similar constitutional documents; 

  

	 	(b)	Authority. It has all requisite power, authority, approval and third-party consent required to enter into this Agreement and other Transaction Documents and has all requisite power, authority, approval and
third-party consent to fully perform each of its obligations hereunder and under other Transaction Documents; 

  
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	 	(c)	Corporate Actions. It has taken all necessary internal corporate actions to authorize it to enter into this Agreement and other Transaction Documents, and its representative whose signature is affixed hereto is
given full authority to sign this Agreement and other Transaction Documents, if applicable; and 

  

	 	(d)	No Violation. Neither the execution of this Agreement and other Transaction Documents, if applicable, nor the performance of its obligations hereunder and thereunder, will conflict with, or result in a breach of,
any provision of its constitutional documents, or any law, rule, regulation, authorization, or approval of any Government Entity, or of any contract or agreement to which it is a party or is subject. 

 

	8.2	Representations and Warranties of VNET and Vianet. 

  

	 	(a)	Representations and Warranties of VNET and Vianet. Each of VNET and Vianet hereby represents and warrants, on a joint and several basis, to the Investor that as at the date of this Agreement and each
Tranche Closing Date:- 

  

	 	(i)	Except as fully and fairly disclosed to the Investor in the Disclosure Schedule (as defined below, with sufficient details to identify the nature and scope of the matter disclosed), each of the statements set forth in
Exhibit 8.2(a)(i) is and will be true, accurate and complete; 

  

	 	(ii)	All information contained in the Disclosure Schedule is and will be true, accurate and complete; and 

  

	 	(iii)	All information relating to Vianet and its assets and/or affairs requested by the Investor and its advisors is contained in the due diligence documents provided by Vianet to the Investor and its advisors prior to the
date hereof, and in this Agreement as well as the Disclosure Schedule. 

  

	 	(b)	No Violation of Representations and Warranties. Each of VNET and Vianet undertakes that it shall:- 

  

	 	(i)	Not knowingly do or omit to do any act or thing, which will result in any Material Breach of the warranties and representations made by VNET and Vianet under this Section 8 (Representations and Warranties) or
Exhibit 8.2(a)(i), which could have the effect of making any of the foregoing representations or warranties untrue, inaccurate, incomplete or otherwise breached in any material aspect, and promptly notify the Investor in writing upon becoming
aware of the same; 

  

	 	(ii)	Immediately notify the Investor on becoming aware at any time prior to each of the Tranche Closing Date of anything which has or is likely to have a Material Adverse Effect on the financial position of any of Vianet,
the Group Companies and/or the Projects. 

  

	 	(iii)	Rectify or cure any breach of any of the representations and warranties made by VNET and Vianet within thirty (30) days after its occurrence (if such a breach is capable of being rectified or cured) or such other
period as mutually agreed upon in writing by the Shareholders; and 

  
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	 	(iv)	On and from the date of this Agreement, provide the Investor, its agents and advisors with reasonable access, during normal business hours, to all information and documentation regarding the business and affairs of
Vianet, the Group Companies and/or the Projects as the Investor, its agents or advisors may reasonably require by giving reasonable advance notice, except as reasonably determined by Vianet in good faith (A) a refusal to provide the relevant
information is necessary as to ensure compliance with any Applicable Law; or (B) provision of the relevant information is reasonably expected to violate the attorney-client privilege, other legal privilege or contractual confidentiality
obligations; provided, however, that none of the Investor, its agents and advisors shall use the foregoing information and documentation for purposes not relating to the Transactions or in a way that would render an adverse impact on
Vianet or its Affiliates. 

  

	9.	ADDITIONAL COVENANTS 

  

	9.1	Further Assurances. The Parties shall act in good faith to take any and all actions necessary or advisable to consummate the Transactions, including without limitation, to (a) procure that each of the Group
Companies and their respective directors, officers and employees shall fulfill their respective obligations under this Agreement and other Transaction Documents; and (b) provide all reasonably necessary and advisable assistance to the Group
Companies and the Investor in obtaining all applicable Government Approvals, and complete the Transactions. 

  

	9.2	Disclosure of Related Party Transactions. Without prejudice to Section 10.3 (Reserved Matters), each Shareholder (the “Conflicted Shareholder”) hereby covenants to the other
Shareholder that any and all transactions (each, a “Related Party Transaction”) between any Group Company, on one hand, and the Conflicted Shareholder or its Affiliates or a Related Party, on the other hand, from and after
the date hereof will be on an “arms-length” basis, in compliance with Applicable Laws and listing rules and shall be disclosed to the other Shareholder in writing at the end of each calendar quarter. The Shareholders acknowledge and agree
that in relation to any dispute arising from and/or in connection with any Related Party Transaction, the Conflicted Shareholder shall, and shall procure its nominee directors at any Group Company to, abstain from voting on any matter relating to
such dispute (including in respect of the enforcement by any Group Company of any of its rights, the defense by any Group Company of any claims against it, and the settlement of any rights or claims). 

 

	9.3	Confidentiality and Publicity. 

  

	 	(a)	Confidentiality. From the date hereof, each Party shall, and shall cause each Person who is Controlled by such Party to, keep confidential the terms, conditions and existence of this Agreement, any related
documentation, the identities of any of the Parties and any other information of a non-public nature received from any other Party or prepared by such Party exclusively in connection herewith or therewith
(collectively, the “Confidential Information”) except as the Parties otherwise mutually agree; provided, however, that any Party may disclose the Confidential Information or permit the disclosure of the
Confidential Information (i) to the extent required by Applicable Law so long as, where such disclosure is to a Government Entity, such Party shall use all reasonable efforts to obtain confidential treatment of the Confidential Information so
disclosed, (ii) to the extent required by the rules of any stock exchange, (iii) to its officers, directors, employees and professional advisors, and in the case of the Investor, its Affiliates, as necessary for the performance of its
obligations in connection herewith so long as such Party advises each Person to whom any Confidential Information is so disclosed as to the confidential nature thereof, and (iv) to its investors, prospective investors and any Person otherwise
providing substantial debt or equity financing to such Party so long as the Party advises each Person to whom any Confidential Information is so disclosed as to the confidential nature thereof. Each Party shall ensure that any of the foregoing
permitted disclosed Persons to which such Party discloses the Confidential Information shall have the same confidentiality obligation and liability as such Party. 

  
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 Further, the Investor acknowledges that it is aware that VNET is a NASDAQ listed company and is
subject to the securities laws and regulations of the Securities and Exchange Commission of the United States of America (“SEC”). Therefore, the Investor and/or its Subsidiaries that receive
non-public information from VNET about VNET will be subject to inside trading provisions under the rules of SEC. 

For the avoidance of doubt, the Confidential Information does not include information that (i) was already in the possession of the
receiving Party (the “Receiving Party”) before such disclosure by the disclosing Party (the “Disclosing Party”), (ii) is or becomes available to the public other than as a result of disclosure by the
Receiving Party in violation of this Section 9.3 (Confidentiality and Publicity) or (iii) is or becomes available to the Receiving Party from a third party not known by the Receiving Party to be in breach of any legal or contractual
obligation not to disclose such information to it; and in each case, if the Receiving Party determines that the foregoing information may have any Material Adverse Effect on the Group Companies, the Receiving Party shall immediately notify the other
Parties and take reasonable and necessary measures to avoid further disclosure of the foregoing information. 
  

	 	(b)	Publicity. No public announcement or disclosure (including any general announcement to employees, customers or suppliers) will be made by any Party with respect to the subject matter of this Agreement or the
Transactions without the prior written consent of the other Parties; provided that the provisions of this Section 9.3(b) (Publicity) shall not prohibit (i) any disclosure required by any Applicable Law (in which case the disclosing Party will
provide the other Parties with the opportunity to review and comment in advance of such disclosure if legally permitted and practicable) or (ii) any disclosure made in connection with the enforcement of any right or remedy relating to this
Agreement or the Transactions. 

 Each of the Parties shall not, and shall procure that their respective Affiliates will not,
without the prior written consent of the other Parties, (i) use in advertising, publicity, or otherwise the name of the other Parties or their respective Affiliates, nor any trade name, trademark, trade device, service mark, symbol or any
abbreviation, contraction or simulation thereof owned by the other Parties or their respective Affiliates, or (ii) represent, directly or indirectly, that any product or any service provided by any Group Company has been approved or endorsed by
the other Parties or their respective Affiliates. 

  
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	9.4	Compliance. 

  

	 	(a)	General Compliance. Saving as set out in the Disclosure Schedule, the Shareholders shall ensure that all activities with respect to each Group Company and the Projects shall be conducted in compliance with
respective Applicable Law (including without limitation, the Applicable Laws governing acquisition of land use rights, bidding, auction and listing, and anti-corruption and bribery etc.). 

 

	 	(b)	FCPA. Without limiting the generality of Section 9.4(a) (General Compliance), Vianet shall ensure that none of Vianet/Vianet’s Affiliates (when acting on behalf of the Group Companies), the Investor shall
ensure that none of the Investor/the Investor’s Affiliates (when acting on behalf of the Group Companies), and the Shareholders shall ensure that none of the Group Companies, the Group Companies’ Affiliates and the Group Companies
directors, officers, agents, employees, Representatives and any other Person associated with or acting on behalf of any of the foregoing (for the purpose of this Section 9.4 (Compliance), any reference to an Affiliate of the Investor shall not
include any Affiliate of the Investor that is an investment portfolio entity invested by the Investor or any of its Affiliates):- 

  

	 	(i)	makes, gives, offers, promises, or authorizes any financial or other advantage (including any payment, loan, gift or transfer of anything of value), directly or indirectly, either (A) to or for the use or benefit
of any Government Official, political party or official thereof, any candidate for political office or another person at the request or with the assent or acquiescence of any of the foregoing or (B) knowing or being aware of a high probability
that all or a portion of such financial or other advantage (including any payment, loan, gift or transfer of anything of value) would be offered, given or promised, directly or indirectly, to or for the use or benefit of any Government Official,
political party, official thereof, candidate for political office, or another person at the request or with the assent or acquiescence of any of the foregoing, for the purpose of:- 

 

	 	(A)	(x) influencing any act or decision of such Government Official, political party, party official, or candidate in his or its official capacity; (y) inducing such Government Official, political party, party official
or candidate to do or omit to do any act in violation of the lawful duty of such Government Official, political party, party official or candidate; or (z) securing any improper advantage; or 

 

	 	(B)	inducing such Government Official, political party, party official, or candidate to use his or its influence with any Government Entity to affect or influence any act or decision of such Government Entity

 in order to assist any of the Group Companies and the Shareholders in obtaining, retaining or soliciting business; or 

 

	 	(ii)	engage in any other conduct which would violate the Anti-Bribery Laws. 

  
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	 	(c)	Licenses and Permits. Except as disclosed in the Disclosure Schedule and not otherwise provided in this Agreement, Vianet shall be responsible for obtaining all and any applicable license, permit and regulatory
approval as required for JV Cos and other Group Companies to operate their respective businesses on a standalone basis, including without limitation, serving third party wholesale data center customers. If such license, permit and regulatory
approval cannot be obtained for reasons including but not limited to foreign ownership threshold under applicable laws, Vianet shall (and shall cause its Affiliates to) make alternative arrangements satisfactory to the Shareholders to achieve the
same commercial outcome. The Investor shall provide commercially reasonable assistance. The Shareholders shall discuss in good faith as to the sharing of any direct cost associated with such alternative arrangements. 

 

	 	(d)	Additional Anti-Bribery Covenants. The Shareholders shall procure that each Group Company shall:- 

  

	 	(i)	on or before 30 days after the JV Co 2 Closing Date, adopt, maintain, update and enforce adequate policies and procedures designed to achieve compliance with Anti-Bribery Laws by
the Group Company and its Representatives, and these policies and procedures shall: (A) fulfil all requirements imposed by the Anti-Bribery Laws and other Applicable Laws; (B) be in line with customary international best practices
applicable to a similarly-situated company (taking into account laws and regulations applicable to companies in which the Investor has made an investment of this size and nature); and (C) be substantially similar to the Investor’s
anti-bribery policies or as otherwise agreed to between the Shareholders; 

  

	 	(ii)	adopt such further policies and procedures as shall be reasonably required by the Group Company and its direct or indirect Subsidiaries to fulfil its and their own legal and regulatory compliance obligations;

  

	 	(iii)	maintain books, records and accounts that, in reasonable detail, accurately and fairly reflect all of its transactions and dispositions of its assets, and shall maintain a system of internal accounting controls
sufficient to provide reasonable assurances that its transactions are executed, its funds are expended, and access to its assets is permitted, only in accordance with its management’s authorization; 

 

	 	(iv)	provide anti-bribery trainings at least annually to its directors, officers, agents, employees, Representatives and any other Person associated with or acting on behalf of the Group Companies, including but not limited
to those who deal with relationships with government agencies or state-owned enterprises; and 

  

	 	(v)	adopt and maintain policies and procedures to ensure the prompt reporting of violations of law or fraud within the Group Company (including by any Representative of the Group Company) and immediately report to the
Shareholders such information. 

  
 37 

	 	(e)	Audit Rights. Without limiting the generality of Section 10.5 (Information and Inspection Rights of Investor) and in case in relation to the matters set out in Section 9.4(a) (General Compliance), Section
9.4(b) (FCPA) and Section 9.4(d) (Additional Bribery Covenants), the Shareholders shall procure that each Group Company shall immediately answer in reasonable detail any written or oral inquiry by any of the Shareholders (the “Requesting
Shareholder”), and to facilitate the interview of staff employed by the Group Company at any reasonable time specified by the Requesting Shareholder. The Shareholders shall procure that the Requesting Shareholder, and any independent
accountants appointed by any of the Shareholders, shall have the right to review and audit the Group Companies’ books, records, accounts and internal accounting controls, and that the Group Companies shall provide to the Requesting Shareholder
such analysis and reports with respect thereof as the Requesting Shareholder may direct. The Shareholders shall make all reasonable efforts to cooperate with the Requesting Shareholder’s any such review, audit, analysis and report.

  

	9.5	Exclusivity and Non-Competition. 

  

	 	(a)	Non-Competition. VNET and Vianet undertake that from and after the date of this Agreement, (i) except for the existing projects that have been disclosed by Vianet to
the Investor in writing in reasonable details on or prior to the date of this Agreement, neither VNET or Vianet shall (and VNET and Vianet shall cause their respective Affiliates not to) carry on, invest in, develop or operate (whether alone or in
partnership or joint venture with anyone else) any Wholesale Colocation Business in Asia (whether as trustee, principal, agent, shareholder, unit holder, director or in any other capacity) or take any action to compete with, the businesses carried
on by any Group Company in Asia and (ii) the Group Companies shall be the exclusive vehicles for Vianet and its Affiliates to invest in, develop, manage and/or operate, directly and indirectly, any Wholesale Colocation Business in Asia. For the
avoidance of doubt, the foregoing restrictions shall not apply to any of the following:- 

  

	 	(i)	any Project owned by JV Co 1, JV Co 2 or their respective Subsidiaries that are leased by any Group Company to Vianet or its Affiliates in or substantially in its entirety; and 

 

	 	(ii)	if VNET, Vianet or any of their respective Affiliates intend to or is given an opportunity to pursue any project within the Wholesale Colocation Business, VNET and Vianet shall notify JV Co 2 in writing requesting JV Co
2’s decision on whether any Group Company has the capacity to pursue such project, and (A) if JV Co 2 replies that none of the Group Companies has the capacity to pursue such project (or if JV Co 2 fails to reply within two (2) months
after receipt of VNET’s or Vianet’s notification), VNET, Vianet or their respective Affiliates may pursue such project; or (B) if JV Co 2 replies with commercially reasonable evidence that a Group Company has the capacity to pursue
such project, VNET, Vianet shall (and shall cause their respective Affiliates to) use commercially reasonable efforts to coordinate so that a Group Company may pursue such project. 

  
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 For purposes of this Section 9.5(a) (Non-Competition),
(A) “Wholesale Colocation Business” means (x) provision of leasing, power and facility management services to third party customers for any white space, a portion of a data center asset that contains at least 300
cabinets, the entirety of a data center asset, or other than the Retail Colocation Business; or (y) provision of built-to-suit data center (with at least 300
cabinets) services to third party customers; and (B) “Retail Colocation Business” means provision of data center services, leasing, power and/or facility management services for a portion, and not the entirety, of a data
center asset which contains less than 300 cabinets to third party customers. 
  

	 	(b)	No-Solicitation. Except as provided in this Section 9.5(a) (Non-Competition), Vianet hereby undertakes that Vianet shall not (and
shall cause its Affiliates not to), directly or indirectly, (i) offer or solicit for any employment to any officer, manager, or employee of any Group Company; or (ii) for its own benefit or the benefit of any person or organization,
solicit or entice away the customer of any person, firm, company or entity which is or has been a customer of a Group Company for the purpose of offering to such customer goods or services of any business which are competing with the existing
business of the Group Company. For the avoidance of doubt, this Section 9.5(b) (No-Solicitation) shall not apply to situations where any Group Company requests Vianet for business support, technology
assistance or any form of business cooperation for the purpose of maintaining existing business or exploring business opportunities of such Group Company. 

  

	 	(c)	Severability. Each and every obligation under this Section 9.5 (Exclusivity and Non-Competition) shall be treated as a separate obligation and shall be severally
enforceable as such. While each Party acknowledges that the restrictions contained in this Section 9.5 (Exclusivity and Non-Competition) are reasonable in all the circumstances it is recognized that the
restrictions of the nature in question may fail for technical reasons unforeseen and accordingly, it is hereby agreed and declared that if any of such restrictions shall be adjudged to be void as going beyond what is reasonable in all the
circumstances for the protection of the interests of the other Parties or any Group Company but would be valid if part of the wording thereof were deleted or the periods thereof reduced or the range of activities or area dealt with thereby reduced
in scope, the said restriction shall apply with such modifications as may be necessary to make it valid and effective. 

  

	9.6	Ordinary Course of Business. 

  

	 	(a)	Except as set out in the Disclosure Schedule, commencing from the date of this Agreement and continuing through the JV Co 2 Closing Date, Vianet shall cause each Group Company (but excluding WP SPV 1 and WP SPV 2 and in
respect of any Group Company that the Investor has become a direct or indirect shareholder, the Investor shall provide commercially reasonable assistance to cause such Group Company), 

 

	 	(i)	to conduct its business in, and only in, the Ordinary Course of Business and shall use its Best Efforts to preserve intact its current business organizations, keep available the services of its current officers and
employees and preserve its relationships with tenants, customers, suppliers and others having business dealings with it to the end that its goodwill and going business value shall not be materially and adversely affected at the first Tranche Closing
Date; 

  
 39 

	 	(ii)	to take all reasonable steps to protect and preserve its assets; 

  

	 	(iii)	to maintain its insurance cover on the same terms and to the same extent as exists on the date of this Agreement; 

  

	 	(iv)	to own, operate, develop and use its assets and Projects and conduct its business and its corporate affairs in compliance with all Applicable Laws and all agreements and arrangements which are binding on it;

  

	 	(v)	except as expressly contemplated by the Transaction Documents (including the Restructuring and Transaction Plan), to pay and discharge in accordance with the present practice of such Group Company as at the date of this
Agreement (i) all Taxes, assessments, levies, fees and charges imposed upon it or upon or in relation or in connection with its assets and properties and (ii) all lawful and valid claims which, if unpaid, might by law become a lien upon
its assets and properties, and maintain such reserves in respect of Taxes, assessments, levies, fees and charges as are required under generally accepted accounting principles, standards and practices consistently applied with the consequences that
as at the JV Co 2 Closing Date, all Taxes payable by or claims for taxation which have been or may be asserted against any Group Company have been paid and/or discharged in full and/or moneys may have been set aside for the same; and

  

	 	(vi)	to maintain and comply with all permits and licenses granted to it. 

  

	 	(b)	Except as expressly contemplated by the Transaction Documents (including the Restructuring and Transaction Plan), commencing from the date of this Agreement and continuing through the JV Co 2 Closing Date, without the
prior written consent of the Investor, Vianet shall cause each Group Company, excluding WP SPV 1 and WP SPV 2, not to do any of the following actions:- 

  

	 	(i)	amend or otherwise change any of its constitutional documents in a matter that is material to the business of such Group Company; 

  

	 	(ii)	issue, grant, sell, dispose of, pledge or otherwise subject to any Encumbrance, or authorize such issuance, grant, sale, disposition, pledge or subjection to such Encumbrance of, any equity interests of any Group
Company; 

  

	 	(iii)	declare, set aside, make or pay any dividend or other distribution; 

  

	 	(iv)	reclassify, combine, split, subdivide or redeem, or purchase or otherwise acquire, directly or indirectly, any shares or other ownership interest of any Group Company; 

 

	 	(v)	sell, transfer or dispose of, granting an Encumbrance over or authorize such sale, transfer, granting of Encumbrance over or disposition of, any properties, rights or assets, except the sale, transfer, granting of
Encumbrance over or disposition of properties, rights or assets in the Ordinary Course of Business and which rights, properties or assets do not have a fair market value exceeding RMB100,000; 

  
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	 	(vi)	acquire (including by merger, consolidation or acquisition of stock or assets or any other business combination) or enter into or exercise any option to acquire, any equity interests in any corporation, partnership,
joint venture or other business organization (or any division thereof) or any property or asset (except any purchase of property or asset in the Ordinary Course of Business); 

 

	 	(vii)	create or incur any Indebtedness in an amount not to exceed RMB100,000 in the aggregate; 

  

	 	(viii)	change its auditor or any of its accounting principles or procedures; 

  

	 	(ix)	enter into any Related Party Transactions between any Group Company on the one hand and Vianet or any of its Affiliates or any Related Party, on the other hand; 

 

	 	(x)	change any material terms of employment and remuneration package of its CEOs and the Key Management and other management teams or the adoption of any employee incentive program excluding any change arising from
voluntary resignation of any Person or mutually agreed by the Shareholders; 

  

	 	(xi)	initiate any material litigation, or compromise or settle any existing litigation involving it as a defendant ; 

  

	 	(xii)	enter into any joint venture, partnership or profit share agreements; 

  

	 	(xiii)	in relation to any property of any Group Company, change its existing use, terminate, or give a notice to terminate, a lease, tenancy or licence and shall not agree to a new rent or fee payable under a lease, tenancy or
licence; 

  

	 	(xiv)	create, extend or grant any financial or performance guarantee or any similar security or indemnity or contingent obligation relating to the obligations or liabilities of any Person, including letters of comfort or
support, other than in the Ordinary Course of Business; 

  

	 	(xv)	settle, release, discharge or otherwise waive any liabilities, claims, demand owed to it by any Person other than in the Ordinary Course of Business and the amount of such liability claims or demand does not exceed
RMB800,000 in the aggregate and individually not to exceed RMB300,000; or 

  

	 	(xvi)	announce an intention, enter into any formal or informal agreement or otherwise make a commitment, to do any of the foregoing. 

  
 41 

	 	(c)	If, during the foregoing period, the Group Companies engage in any activities in violation of the provisions of this Section 9.6 (Ordinary Course of Business) and such violation is not cured within a reasonable
period of time after the occurrence thereof, the Investor may elect to terminate this Agreement pursuant to Section 15.1 (Termination of Agreement). 

  

	9.7	Branding. Subject to applicable laws and listing rules and such terms and conditions as mutually agreed upon by the Parties, VNET and Vianet will allow, and cause their respective Affiliates to allow, the Group
Companies to use the intellectual property right (including without limitation, any brands, business names, logos, trademarks and copyrights) of VNET, Vianet and their respective Affiliates. Notwithstanding the foregoing, the Shareholders hereby
agree and acknowledge that the Group Companies shall develop and build their own intellectual property rights (including without limitation, any brands, business names, logos, trademarks and copyrights) which are distinct from those of VNET, Vianet
and their respective Affiliates. 

  

	9.8	Covenants. Vianet undertakes that Vianet shall, and shall cause its Affiliates to, at the cost of the applicable Group Companies, complete all the matters, actions and transactions provided in Exhibit 9.8
within the applicable time limits respectively set forth therein or such other time as agreed upon by the Shareholders. The Investor shall provide commercially reasonable assistance as requested by Vianet. 

 

	9.9	Financing. The Shareholders shall use commercially reasonable efforts to use leverage on JV Co 1, JV Co 2 and their respective Subsidiaries in order to maximize the economic returns of the Shareholders.

  

	10.	CORPORATE GOVERNANCE 

  

	10.1	Board and Officers. The Shareholders hereby agree that:- 

  

	 	(a)	Directors and Supervisors. 

  

	 	(i)	The board of each of JV Co 1 and its Subsidiaries shall consist of five (5) directors, three (3) of which shall be appointed, removed or replaced (with or without cause) by Vianet and the other two (2) of
which shall be appointed, removed or replaced (with or without cause) by the Investor. A director appointed by Vianet shall be appointed as the Chairman of the board of each of JV Co 1 and its Subsidiaries, who shall not have any casting vote. The
Investor shall be entitled to appoint a person to be an observer with rights to attend and participate and speak (but not vote) in all meetings of the board of each of JV Co 1 and its Subsidiaries, and rights to receive all notices, agenda, papers
and other documents and information as if such person were a director of each of JV Co 1 and its Subsidiaries. 

  

	 	(ii)	The board of each of JV Co 2, JV Co 3 and their respective Subsidiaries shall consist of five (5) directors, three (3) of which shall be appointed, removed or replaced (with or without cause) by the Investor
and the other two (2) of which shall be appointed, removed or replaced (with or without cause) by Vianet. A director appointed by the Investor shall be appointed as the Chairman of the board of each of JV Co 2, JV Co 3 and their respective
Subsidiaries, who shall not have any casting vote. Vianet shall be entitled to appoint a person to be an observer with rights to attend and participate and speak (but not vote) in all meetings of the board of each of JV Co 2, JV Co 3 and their
respective Subsidiaries, and rights to receive all notices, agenda, papers and other documents and information as if such person were a director of each of JV Co 2, JV Co 3 and their respective Subsidiaries. 

  
 42 

	 	(iii)	Notwithstanding the foregoing, if any Shareholder’s Shareholding Percentage in JV Cos is diluted pursuant to the provisions of this Agreement or other Transaction Documents, such Shareholder’s corporate
governance rights with respect to JV Cos and its Subsidiaries shall be adjusted according to the resultant dilution such that the number of directors that it can appoint to the board of JV Cos and its Subsidiaries will remain directly proportional
to its Shareholding Percentage in JV Cos. For the avoidance of doubt, if either Shareholder holds more than 60% of the then issued and outstanding shares in any JV Co, the board of such JV Co shall be enlarged to consist of six (6) directors,
four (4) of which shall be appointed, removed or replaced by such Shareholder and the other two (2) of which shall be appointed, removed or replaced by the other Shareholder. 

 

	 	(iv)	Each onshore Group Company shall have two (2) supervisors, one (1) of which shall be appointed, removed or replaced (with or without cause) by Vianet; and the other one (1) of which shall be appointed,
removed or replaced (with or without cause) by the Investor. To the extent permitted by Applicable Law, the general manager of an onshore Group Company shall act as the legal representative of such onshore Group Company. 

 

	 	(b)	Senior Executives. Either Shareholder may recommend suitable candidate for appointment as any of the senior executives of each Group Company (including without limitation the roles of chief executive officer and
chief financial officer of the JV Cos and general manager of each Group Company), subject to the approval of the board of directors of the relevant JV Co. Pending the appointment of a chief executive officer of the JV Cos, Josh Chen shall serve as
the interim chief executive officer of the JV Cos for a period of no longer than twelve (12) months following the first Tranche Closing. Notwithstanding the foregoing, (i) Vianet shall be entitled to nominate the general manager of each
Group Company, who shall be subject to the approval of the board of directors of the relevant JV Co; and (ii) the Investor shall be entitled to nominate the chief financial officer of each Group Company, who shall be subject to the approval of
the board of directors of the relevant JV Co and shall (A) have authority over any and all bank accounts of the Group Companies, (B) have any other rights to ensure that the Investor or the Investor Directors may exercise their respective
rights in respect of the Reserved Matters, and (C) have responsibility for compliance, including but not limited to anti-corruption compliance, and authority to report directly to the board, including but not limited to making reports on
anti-corruption compliance to the board on at least an annual basis; and (iii) each Shareholder may request to dismiss the legal representative or other Key Management of any Group Company if such legal representative or Key Management commits
any Misconduct Event and the Shareholders shall take any and all actions to effectuate any dismissal requested by the requesting Shareholder. The replacement for the dismissed legal representative or other Key Management of the applicable Group
Company shall be nominated and approved following the normal procedures for the nomination and approval of such position as provided in this Section 10.1(b) (Senior Executives). 

  
 43 

	 	(c)	Investor Director. Immediately prior to an IPO or REIT, the Shareholders shall act in good faith with relevant advisors and regulatory authorities to replace the corporate governance procedures described in this
Section 10 (Corporate Governance) with such procedures and practices that are consistent with the regulatory and listing requirements of the stock exchange on which JV Cos will be listed. Subject to the relevant rules and regulations, in the
event any or all of the Investor’s rights set forth herein are terminated, the Shareholders acknowledge that the Investor (or its permitted assignee or successor) shall continue, to the extent permissible under Applicable Law and applicable
listing rules, to be entitled to appoint at least one (1) member to the board of JV Cos after an IPO or REIT. 

  

	 	(d)	Appointment. The Shareholders shall, and shall procure each Group Company to, take any and all necessary actions to duly appoint the director(s) respectively selected by the Shareholders to the board of the
relevant Group Company pursuant to this Section 10 (Corporate Governance), including adoption of the relevant shareholder or board resolutions and obtaining all necessary Governmental Approvals. 

 

	10.2	Board Meetings and Rights of Shareholders. 

  

	 	(a)	Board Meetings. A board meeting of each Group Company may be called by the Chairman of the board of the applicable Group Company or any of the Investor Directors with a prior written notice to all the other
directors of the applicable Group Company specifying the date, time, venue and agenda for such board meeting. Such notice must be sent at least seven (7) days prior to the proposed board meeting or such shorter notice period as mutually agreed
upon by all directors of JV Cos. Except otherwise provided herein and subject to Section 10.3 (Reserved Matters), resolutions of the board of each Group Company shall be passed by a simple majority at a duly convened meeting. 

 

	 	(b)	Quorum. The quorum of a board meeting of each Group Company shall be four (4) directors present in person or by proxy. 

The Shareholders shall use their respective commercially reasonable efforts to ensure that the director(s) respectively appointed by them
attend the board meetings. If a quorum is not present within an hour from the time specified for a board meeting, such board meeting shall be re-scheduled and a notice specifying the date, time and venue of a re-scheduled board meeting (the “First Re-scheduled Meeting”) must be sent to all the directors of the
applicable Group Company at least seven (7) days prior to the proposed First Re-scheduled Meeting or such shorter notice period as mutually agreed upon by all of the directors. 

If at the First Re-scheduled Meeting after all the meeting notices have been duly served, a quorum is
still not present within an hour from the specified time of the First Re-scheduled Meeting, the First Re-scheduled Meeting shall be further re-scheduled and another notice specifying the date, time and venue of a further re-scheduled board meeting (the “Second Re-scheduled Meeting”) must be sent to all the directors of the applicable Group Company at least seven (7) days prior to the proposed Second
Re-scheduled Meeting or such shorter notice period as mutually agreed upon by all of the directors. 

  
 44 

 If at the Second Re-scheduled Meeting after all the
meeting notices have been duly served, a quorum is still not present within an hour from the specified time of the Second Re-scheduled Meeting, those directors present shall be deemed a quorum and may transact
the business for which the original board meeting was originally convened. 
 For the avoidance of doubt, the foregoing board meeting, the
First Re-scheduled Meeting and the Second Re-scheduled Meeting shall be the same board meeting with the same meeting topics and agenda. A board meeting with a different
topic or agenda shall be deemed as a separate board meeting and the foregoing provisions shall apply separately. 
  

	 	(c)	Frequency. Subject to Section 10.2(a) (Board Meetings), the board of each Group Company shall meet not less than quarterly. 

  

	 	(d)	Written Resolutions. Subject to Applicable Laws, anything which may be done by resolution of the directors of any Group Company may, without a meeting and without any previous notice being required, be done by
resolution in writing signed by (and thereby signifying their approval thereof) all such directors of the relevant Group Company whose affirmative vote is necessary for passing a resolution at a duly convened meeting (counting all directors of the
relevant Group Company as present). 

  

	 	(e)	Chairman. The Chairman shall act as the chairman at all meetings of the board of the applicable Group Company at which the Chairman is present. In the absence of the Chairman, any other director designated by the
Chairman shall be entitled to act as the chairman in his place at the meeting. If the Chairman fails to make such designation, a chairman shall be appointed or elected by a simple majority of the directors of the applicable Group Company present at
the meeting. 

  

	 	(f)	Participation. The directors of each Group Company may participate in any meeting of the board of the applicable Group Company by means of such telephone, electronic or other communication facilities as permit
all persons participating in the meeting to communicate with each other simultaneously and instantaneously, and participation in such a meeting shall constitute presence in person at such meeting. Any Investor Director may require an interpreter to
be present at a board meeting at the cost of the relevant Group Company. 

  
 45 

	 	(g)	Annual Business Plan and Budgets. On or before 15 November of a given year, each of the board of the JV Cos shall prepare an annual business plan and budget for the corresponding JV Co and its
Subsidiaries for the succeeding year on the basis of the principles set out in Schedule C (each an “Annual Business Plan and Budget”), which shall include without limitation, the
consolidated operating budget, budget of capital expenditures, and strategic plan for the Group Companies for the succeeding fiscal year. The Annual Business Plan and Budget shall be drafted and discussed by all members of the board of the relevant
JV Co, and all comments from all such members shall be reflected therein. The Annual Business Plan and Budget drafted by the board shall be subject to review and approval by the shareholders meeting of the relevant JV Co, which approval shall be
granted on or before 15 December of that given year when the applicable Annual Business Plan and Budget is presented to the shareholders meeting of the relevant JV Co for review and approval. The foregoing arrangements with respect to the
Annual Business Plan and Budget shall remain in place notwithstanding any subsequent investment in JV Cos after the JV Co 2 Closing, unless otherwise mutually agreed upon by the Shareholders. The first Annual Business Plan and Budget shall be
submitted to and approved by the shareholders meeting of each of JV Cos as soon as practical prior to the last Tranche Closing Date. 

  

	 	(h)	Rights of Shareholders. The shareholders of each Group Company shall have the right to receive notice of, attend, speak and vote at any meeting of the shareholders of the applicable Group Company. The
shareholders of the applicable Group Company shall be able to vote according to their then ownership interests in the applicable Group Company, with its voting percentage equal to their then shareholding percentage (on a fully diluted basis) in the
applicable Group Company. Except otherwise provided herein and subject to Section 10.3 (Reserved Matters) and Applicable Laws, resolutions of the shareholders meeting of each of the JV Cos shall be passed by a simple majority at a duly convened
shareholders meeting. 

  

	10.3	Reserved Matters. Without any prejudice to the Investor’s rights and interests hereunder, the Shareholders shall procure that no Group Company shall, without the prior written consent of both the
Shareholders (or if permitted under Applicable Laws, the unanimous approval of all directors of the board of a Group Company expressly in respect of a specific Reserved Matter), take any of the actions set forth in Exhibit 10.3 (the
“Reserved Matters”), provided that, where the approval of one of the Shareholders has not been obtained, then at a meeting at which such matter is considered, such Shareholder shall, in such vote, have such number of
votes as equal to the Shareholder who voted in favor of the resolution plus one (as applicable). 

  

	10.4	Key Management. The Shareholders shall: (i) procure that the chief executive officer (or general manager, as applicable) and the chief financial officer of each Group Company (except Josh Chen) enter into
employment contracts with the applicable Group Company in form and substance as unanimously approved by the board of JV Cos (each an “Employment Contract”); and (y) procure the department heads of each Group
Company (if any) enter into employment contracts with the applicable Group Company, which employment contracts may vary, in form and substance, from the Employment Contract (including without limitation, in terms of
non-solicitation and non-competition clauses); provided, however, that such variation shall be subject to unanimous approval by the board of JV Cos. The
Shareholders shall cause each member of Key Management shall:- 

  

	 	(a)	be an employee of a Group Company (except Josh Chen); 

  

	 	(b)	not work, whether formally or informally, for any other Person that is not a Group Company; and 

  

	 	(c)	comply with the terms of his or her Employment Contract with the applicable Group Company and the Applicable Laws. 

  

	10.5	Information and Inspection Rights of Investor. Subject to compliance with Applicable Laws and listing rules, the Investor shall be entitled to the information and inspection rights set forth in Exhibit
10.5. 

  
 46 

	11.	TRANSFER RESTRICTIONS 

  

	11.1	Restrictions on Transfer. Unless otherwise provided under this Agreement or other Transaction Documents, none of the Shareholders may Transfer its shares in JV Cos without the prior written consent of the other
Shareholder until the earlier of (a) the expiration of five (5) years following the first Tranche Closing Date, or (b) the occurrence of an IPO or REIT. 

 

	11.2	Permitted Transfers. The restrictions on Transfer set forth in this Section 11 (Transfer Restrictions) shall not apply to the following Transfers (each such Transfer, a “Permitted
Transfer”):- 

  

	 	(a)	Any Transfers by any Shareholder to one or more of its Affiliates; provided that (i) the Transfer otherwise complies with Section 11.7 (Deed of Adherence) where applicable; (ii) in the event such
transferee would no longer qualify as an Affiliate of such Shareholder, such transferee shall immediately Transfer the shares in JV Cos to such Shareholder or to an Affiliate of such Shareholder; and (iii) in the event of any such Transfer in
accordance with this Section 11.2 (Permitted Transfer), such Shareholder shall provide prompt notice of such Transfer to the other Shareholders and JV Cos; 

  

	 	(b)	Any Transfer of any share, equity or other interest in any direct or indirect shareholder or investor of WP; or 

  

	 	(c)	Any Transfers by the Investor pursuant to Section 13 (Exit). 

  

	11.3	Right of First Offer. Subject to Section 11.1 (Restrictions on Transfer), Section 11.2 (Permitted Transfers) and Section 13 (Exit):- 

 

	 	(a)	Sale Notice. If a Shareholder (the “Transferring Shareholder”) intends to Transfer all or any portion of the shares owned by such Transferring Shareholder (such Shares to be
Transferred, the “Subject Shares”) in JV Cos, the Transferring Shareholder shall give a written notice (the “Sale Notice”) to the other Shareholder (the
“Non-Transferring Shareholder”) offering to sell all (but not less than all) of the Subject Shares to the Non-Transferring Shareholder, which
notice shall set forth the price on which the Transferring Shareholder is willing to sell the Subject Shares (and, if the Transferring Shareholder has received any proposal from a potential transferee for the Transfer of the Subject Shares, the
terms and conditions of such proposal and the identity of such potential transferee). For a period of forty-five (45) days following the Non-Transferring Shareholder’s receipt of such notice (the
“ROFO Negotiation Period”), the Transferring Shareholder and the Non-Transferring Shareholder shall negotiate in good faith with each other the terms and conditions upon which such Non-Transferring Shareholder may acquire all (but not less than all) of the Subject Shares from the Transferring Shareholder. During the ROFO Negotiation Period, the Transferring Shareholder may not engage in any
negotiation or discussion with any potential transferee with respect to the Subject Shares other than the Non-Transferring Shareholder. 

  
 47 

	 	(b)	Completion Period. In the event the Transferring Shareholder and the Non-Transferring Shareholder reach an agreement with respect to all of the Subject Shares within the
ROFO Negotiation Period, (i) within twenty-one (21) days after the date of the foregoing agreement, the foregoing Non-Transferring Shareholder shall pay to the
Transferring Shareholder a non-refundable deposit in an amount of 10% of the transfer price set forth in the Sale Notice; and (ii) the relevant Shareholders shall enter into a share transfer agreement and
an instrument of transfer and complete the Transfer of all of the Subject Shares within Forty-five (45) days of entry into such agreement (subject to extensions of up to 120 days as required to obtain requisite regulatory approvals) (the
“ROFO Completion Period”). 

  

	 	(c)	Sale at Liberty. In the event (i) no agreement in writing with respect to all of the Subject Shares is reached between the Transferring Shareholder and the
Non-Transferring Shareholder within the ROFO Negotiation Period, or (ii) such an agreement is reached but the Transfer contemplated thereunder fails to be completed within the ROFO Completion Period, then
the Transferring Shareholder (unless the Transferring Shareholder causes the Transfer in this Section 11.3(c)(ii) to fail to be completed) shall be entitled to engage in negotiations and discussions with any potential third party transferee, and to
sell all (but not less than all) of the Subject Shares at a price not less than the price set forth in the Sale Notice within a period of 120 days (subject to extensions of up to 120 days as required to obtain requisite regulatory approvals)
following the end of the ROFO Negotiation Period or the ROFO Completion Period, as applicable. 

  

	 	(d)	Vianet’s Designation. In the case of the Investor being the Transferring Shareholder, Vianet may designate Josh Chen, Tus-Holdings Co., Ltd.

 or any other party to exercise the right of first offer provided under this Section 11.3 (Right of First Offer) 

  

	11.4	Tag-along Right. Without any prejudice to Section 11.1 (Restrictions on Transfer) through 11.3 (Right of First Offer), if Vianet proposes to Transfer its shares in JV
Cos, in whole or in part, the Investor shall have the tag-along right pursuant to the following:- 

  

	 	(a)	Tag-Along. The Investor shall have the right to participate in the proposed Transfer by Vianet to sell all or part of its shares in JV Cos, on the same terms and subject to
the same conditions as specified in the Sale Notice issued by Vianet pursuant to Section 11.3 (Right of First Offer), by issuing to Vianet a written notice (the “Tag-Along Notice”)
within one (1) month after Investor’s receipt of the Sale Notice. The Tag-Along Notice shall specify the series and number of shares of JV Cos which the Investor elects to sell. Unless the third
party buyer of the shares to be Transferred by Vianet agrees to purchase more shares held by the Investor, the number of shares in JV Cos that can be sold by the Investor shall not exceed the total number of shares to be Transferred to such third
party buyer multiplied by the Shareholding Percentage of the Investor in JV Cos. 

  
 48 

	 	(b)	Procurement. Vianet shall procure that:- 

  

	 	(i)	All of the relevant parties to the Transfer shall execute such additional documents as may be necessary or appropriate to effectuate such Transfer; 

 

	 	(ii)	Vianet shall not Transfer any share in JV Cos to the foregoing proposed transferee unless and until the proposed transferee has purchased all of the shares set forth in the
Tag-Along Notice from the Investor and the corresponding share purchase price has been paid to the Investor in full; and 

  

	 	(iii)	The closing of the Transfer of shares held by the Investor in JV Cos shall occur prior to or simultaneously with the closing of the Transfer of shares held by Vianet. 

 

	11.5	No Indirect Transfer. The Parties agree that the Transfer restrictions in this Section 11 (Transfer Restrictions) may not be avoided by and shall be applied to any Transfer of the shares (or other equity
interests) in any direct or indirect shareholder of JV Cos. Any Transfer of any shares (or other equity interests) in a direct or indirect shareholder of JV Cos in violation of this Section 11 (Transfer Restrictions) shall be null and void and
shall be deemed to be a breach of this Section 11 (Transfer Restrictions) by the relevant direct shareholder of JV Cos. 

  

	11.6	Ceasing to Apply. For the avoidance of doubt, any and all restrictions in respect of Transfer by the Investor under this Section 11 (Transfer Restrictions) shall cease to apply with immediate effect upon the
earlier of (a) an IPO or REIT; or (b) the occurrence of any of the exit events set forth in Section 13 (Exit). 

  

	11.7	Deed of Adherence. No direct Transfer of any share in JV Cos shall be made, unless the Person to whom any such share is directly Transferred or issued shall first have executed and delivered a Deed of Adherence
in the form set out in Exhibit 11.7. The Shareholders agree to extend the benefit of this Agreement to any Person who acquires shares in JV Cos in accordance with this Agreement and enters into a Deed of Adherence in the form set out in
Exhibit 11.7, but without prejudice to the continuation inter se of the rights and obligations of the original Shareholders to this Agreement and all other Persons who have entered into such a Deed of Adherence. 

 

	11.8	Concurrent Transfer. Notwithstanding any other provisions hereof, unless otherwise agreed to by the other Shareholders in writing, none of the Shareholders may Transfer any of its shares in any JV Co without a
proportionate Transfer by such Shareholder of its shares in each of the other JV Cos, vise versa (which, for the avoidance of doubt, shall include without limitation, any tag-along, drag-along,
put option arrangements). For the avoidance of doubt, “a proportionate Transfer” means a Transfer of a percentage of all the shares held by a Shareholder in each of such other JV Cos that is equal to the percentage of the shares
Transferred by such Shareholder in such JV Co to all the shares held by such Shareholder in such JV Co immediately prior to such Transfer. 

  

	11.9	Compliance of Restrictions. The Parties shall, and shall procure their respective Affiliates and the relevant directors thereof to fully comply with the restriction provided in this Section 11 (Transfer
Restrictions). 

  
 49 

	12.	IPO OR REIT 

  

	12.1	IPO or REIT. The Parties shall use their commercially reasonable efforts to procure that JV Cos achieve (a) an initial public offering (“IPO”); or (b) listing of JV Cos and/or
its assets as a real estate investment trust (“REIT”) with location and other terms and conditions to be mutually agreed upon by the Shareholders in writing, in each case by the end of five (5) years (or any other time
period mutually agreed to by the Shareholders in writing) following the first Tranche Closing Date. The Parties may also endeavor to achieve a standalone IPO offering or REIT of JV Co 1, JV Co 2 and/or JV Co 3 in order to maximize the economic
interests of the Shareholders. 

  

	12.2	Alternative. Subject to Applicable Laws, the Shareholders shall use good faith and their respective Best Efforts to entitle the Investor to the corresponding economic rights and benefits as well as contractual
protections that are commensurate with those available to the Investor hereunder to the fullest extent permitted by law should any of such the rights, benefits or protections of the Investor as contemplated by this Agreement and other Transaction
Documents are found to be unacceptable by the relevant stock exchange or other relevant Government Entities or institutions. 

  

	12.3	Merger of JV Cos. 

  

	 	(a)	Merger. For the purpose of achieving an IPO or a REIT of JV Cos, 

  

	 	(i)	each Shareholder shall have an option, by serving a written notice (the “Injection Notice”) to the other Shareholder, to swap the requesting Shareholder’s shares in JV Co 1 and/or JV Co 3
with newly issued shares of JV Co 2 or to swap the requesting Shareholder’s shares in JV Co 1, JV Co 2 and/or JV Co 3 with newly issued shares of another holding company established for the purpose of an IPO or a REIT (the “Listing
Entity”); 

  

	 	(ii)	each Shareholder shall have an option, by serving a written notice (the “Merger Notice”) to the other Shareholder, requesting that both Shareholders shall swap their respective shares in JV Co 3
with newly issued shares of JV Co 2 or to swap their respective shares in each of JV Co 2 and JV Co 3 with newly issued shares of the Listing Entity pursuant to the provisions of Section 12.3(b) (Injection Share Swap); and/or 

 

	 	(iii)	the Investor shall have an option, by serving a written request (the “Merger Request”) to Vianet if Vianet’s holding of the shares in JV Co 1 will adversely affect an IPO or a REIT of JV
Cos, to request a merger of JV Cos (by way of an injection of the shares held by all the Shareholders in JV Co 1 and JV Co 3 into JV Co 2 or an injection of the shares held by all the Shareholders in JV Cos into the Listing Entity through a share
swap pursuant to the provisions of Section 12.3(b) (Injection Share Swap) or any other more tax-efficient way as mutually agreed the Shareholders) with a goal to achieve an IPO or a REIT of JV Cos, in which
case Vianet shall use commercially reasonable efforts to facilitate the foregoing request by the Investor. For the avoidance of doubt, Vianet shall not be obligated to inject its 51% shares in JV Co 1 into JV Co 2 or other Listing Entity.

  
 50 

	 	(b)	Injection Share Swap. 

  

	 	(i)	Upon a Shareholder’s receipt of the Injection Notice, the Shareholders shall cause JV Co 2 (or the Listing Entity, as applicable) to purchase any and all of the shares held by the requesting Shareholder in JV Co 1
and/or JV Co 3 (or JV Co 1, JV Co 2 and/or JV Co 3, as applicable) in consideration of new shares to be issued by JV Co 2 (or the Listing Entity, as applicable) to the requesting Shareholder, the number of which shall be calculated based on the
respective fair market values of the relevant JV Cos. 

  

	 	(ii)	Upon a Shareholder’s receipt of the Merger Notice, the Shareholders shall cause JV Co 2 (or the Listing Entity, as applicable) to purchase any and all of the shares held by both Shareholders in JV Co 3 (or JV Co 2
and JV Co 3, as applicable) in consideration of new shares to be issued by JV Co 2 (or the Listing Entity, as applicable) to the Shareholders, the number of which shall be calculated based on the respective fair market values of the relevant JV Cos.

  

	 	(iii)	Upon Vianet’s receipt of the Merger Request, the Shareholders shall use commercially reasonable efforts (but shall not be obligated) to cause JV Co 2 (or the Listing Entity, as applicable) to purchase any and all
of the shares held by the Shareholders in JV Co 1 (or JV Co 1 and JV Co 3, as applicable) in consideration of new shares to be issued by JV Co 2 (or the Listing Entity, as applicable) to the Shareholders, the number of which shall be calculated
based on the respective fair market values of the relevant JV Cos; and for the avoidance of doubt, Vianet shall not be obligated to accept such offer and inject its 51% shares in JV Co 1 into JV Co 2. 

 

	 	(c)	Fair Market Value. For the purpose of determination of the foregoing fair market values, each of the Shareholders shall appoint one (1) Appraiser. The Appraisers shall each determine the fair market values
of each of the relevant JV Cos, based on the principles set forth in Exhibit 12.3(c), and submit a valuation report to the Shareholders within one (1) month of their appointment. The arithmetic average of the appraisal results by the
Appraisers shall be used as the binding fair market values of the relevant JV Cos. Each of the Shareholders shall bear the cost of its own selected Appraiser. 

  

	13.	EXIT 

 If: (a) neither an IPO nor a REIT of JV Cos and/or its assets occurs by the
end of five (5) years (or any other time period mutually agreed to by the Shareholders in writing) following the first Tranche Closing Date, then, at any time after expiry of the foregoing five (5) years (or any other time period mutually
agreed to by the Shareholders in writing); (b) any Material Breach under this Agreement or other Transaction Documents occurs; or (c) JV Cos fail to undertake any new Project other than the Existing Projects for a period of any consecutive
twenty-four (24) months following the first Tranche Closing Date, then the Investor shall be entitled to, in its sole discretion, exit from its investments in the Group Companies via one or more of the following exit mechanisms:- 

  
 51 

	13.1	Investor’s Marketing Right. 

  

	 	(a)	Investor’s Sale Notice. The Investor shall be entitled to give a Sale Notice to Vianet pursuant to Section 11.3(a) (Sale Notice) and Vianet shall be entitled to the right of first offer pursuant to the
provisions of Section 11.3 (Right of First Offer). 

  

	 	(b)	Negative Decision Notice. If (i) Vianet elects not to exercise its right of first offer pursuant to Section 11.3 (Right of First Offer); or (ii) Vianet fails to pay the non-refundable deposit pursuant to the provisions of Section 11.3(b) (Completion Period), then, the Investor is at liberty to Transfer the Investor’s Subject Shares to any third party, at a price no less than
the price set forth in the Investor’s Sale Notice, and the Investor shall be entitled to the Drag-Along Right pursuant to the provisions of Section 13.1(c) (Drag-Along Right). 

 

	 	(c)	Drag-Along Right. The Investor shall be entitled to the Drag-Along Right pursuant to the following provisions:- 

  

	 	(i)	The Investor shall have the right (the “Drag-Along Right”) to require Vianet to sell all (but not less than all) of the shares held by Vianet in JV Cos to the third party buyer described in
Section 13.1(b) (Negative Decision Notice) at the same per share price at which the Investor proposes to sell its shares in JV Cos to third party buyer described in Section 13.1(b) (Negative Decision Notice) the by delivering a written notice to
Vianet (the “Drag-Along Notice”) (the “Drag-Along Sale”). 

  

	 	(ii)	In the event that the Investor delivers the Drag-Along Notice, Vianet shall (A) make the same representations, warranties, covenants, indemnities and other agreements as the Investor and/or its Affiliates agree to
make in connection with the Drag-Along Sale, provided that any representations and warranties that are specific to the Investor and/or its Affiliates or Vianet, such as title to shares, shall be made severally and not jointly, (B) obtain any
required consents or approvals in relation to such Drag-Along Sale; (C) pay its proportionate share of costs and expenses (excluding, for the avoidance of doubt, Taxes payable by the Investor and/or its Affiliates or Vianet, as the case may be,
in connection with the sale of their respective shares as well as penalties for failure to file or delay in filing with any competent Government Authority by such Shareholder, which shall be paid and borne by each such Shareholder on its own)
incurred in connection with the Drag-Along Sale and (D) execute any agreements or instruments and take such other steps and provide such other cooperation and assistance as may reasonably be necessary or requested by the Investor in order to
consummate the Drag-Along Sale upon the terms stated in the Drag-Along Notice. 

  

	 	(iii)	Notwithstanding the foregoing provisions, the Investor’s Drag-Along Right shall not apply to any shares held by Vianet in JV Co 1. 

  
 52 

	13.2	Share Swap with Vianet ListCo. 

  

	 	(a)	Share Swap Right. If Vianet or any of its Affiliates including VNET (“Vianet ListCo”) remains a listed company or achieves another initial public offering, the Investor shall have
an option (the “Share Swap Right”), by serving a written notice (the “Share Swap Notice”) to Vianet, to compel an injection of all or part of the shares held by the Investor in JV Cos (the
“Swap Shares”) into Vianet ListCo through a share swap (the “Share Swap”) pursuant to the provisions of Section 13.2(b) (Share Swap), subject to regulatory approval and approval by the shareholders
(and/or board, as may be required by Applicable Laws) meeting of Vianet ListCo. 

  

	 	(b)	Share Swap. Upon receipt of the Share Swap Notice, Vianet shall cause Vianet ListCo to purchase any and all of the Swap Shares in consideration of new shares to be issued by Vianet ListCo to the Investor, the
number of which shall be calculated based on the respective fair market values of JV Cos determined pursuant to the provisions of Section 12.3(c) (Fair Market Value) and the then actual publicly traded share price of Vianet ListCo.

  

	13.3	Trade Sale. Upon the consent of the Shareholders, the Shareholders shall appoint an investment bank of international repute to procure a sale by JV Cos of all or substantially all of their assets and undertakings
(whether by way of a share sale, an asset sale or a combination of both) at a valuation acceptable to the Shareholders, and the Shareholders shall extend all necessary cooperation and assistance to facilitate the sale (including providing assistance
to the potential purchasers and their advisers in the conduct of any due diligence investigation in respect of the Group Companies). Upon completion of the trade sale, the Shareholders shall take the necessary steps to distribute the sale proceeds
from the sale of each JV Co to the Shareholders on a pro rata basis pursuant to their respective then-current Shareholding Percentages in each JV Co. 

 

	13.4	Dissolution Exit. 

  

	 	(a)	Dissolution Notice. The Investor may (but is not obligated to), in its sole discretion, elect to exit (the “Dissolution Exit Option”) from its investment in JV Cos pursuant to Section
13.4(b) (Dissolution Exit) by serving a written notice to Vianet (the “Dissolution Notice”). For the avoidance of doubt, any sale or transfer in connection with the exercise of the Dissolution Exit Option shall not be subject
to the Transfer restrictions set forth in Section 11 (Transfer Restrictions). 

  

	 	(b)	Dissolution Exit. After serving the Dissolution Notice, the Investor may initiate the break-up of JV Cos (the “Dissolution Exit”) and arrange for the fair market value of JV Cos to be
determined as follows:- 

  

	 	(i)	Each of the Shareholders shall appoint an Appraiser within five (5) days after the date of service of the Dissolution Notice to each determine the fair market value of JV Cos, based on the principles set forth in
Exhibit 12.3(c); 

  

	 	(ii)	The Appraisers shall submit a valuation report setting out the fair market value within one (1) month of their respective appointment; and 

 

	 	(iii)	The fair market value of JV Cos shall be the arithmetic average of the fair market values submitted by the two (2) Appraisers. 

  
 53 

 The Shareholders shall (and shall cause the Group Companies to) provide the Appraisers with all
information reasonably required for the purposes of determining the fair market value of JV Cos. The cost of such appraisal shall be paid and borne by JV Cos. 
  

	 	(c)	Asset Distribution. The Shareholders shall take turns to select Project Companies to be transferred to itself or its Affiliates until each of the Shareholders (or their respective Affiliates, as applicable)
receives its share in the fair market value of JV Cos based on its Shareholding Percentage in JV Cos; provided, however, that (i) the Investor shall have the right to the first selection, and Vianet shall have the right to the
second selection; and (ii) the Investor shall be entitled to a priority to be distributed all available cash of JV Cos. If, after completion of the foregoing selection, there is any shortfall between the fair market value of the Project
Companies selected by any Shareholder and the amount that should be distributed to such Shareholder pursuant to this Section 13.4(c) (Asset Distribution), such shortfall shall be made up for in cash by the other Shareholder that receives any excess
distribution. The Shareholders shall use their respective Best Efforts to cause the transfer or disposal of each Project Company to be completed within 180 days after the date of service of the Dissolution Notice. 

 

	13.5	Actions to Effectuate Investor’s Exit. Vianet shall, and shall cause its Affiliates, appointed directors, permitted successors, transferees or assignees to, procure the Group Companies
take any and all necessary actions to effectuate the Investor’s exit pursuant to the provisions hereof. 

  

	13.6	Late Payment Fee. If either Shareholder fails to pay to the other Shareholder any due and payable amount in a timely manner under this Section 13 (Exit), such default Shareholder shall pay to the other
Shareholder a late payment fee at a daily interest rate of 0.05%. 

  

	13.7	Taxes. Without prejudicing the rights and interests of the Investor under this Section 13 (Exit), each Shareholder shall pay and bear the Taxes arising from or in connection with the exit mechanism set forth
in this Section 13 (Exit) payable by said Shareholder pursuant to the Applicable Law; provided, however, that the Shareholders shall use their respective Best Efforts to ensure that the exit mechanism set forth in this
Section 13 (Exit) be implemented in a most tax-efficient way. 

  

	14.	INDEMNITY 

  

	14.1	Survival of Representations and Warranties. The representations and warranties of the Parties in this Agreement and any certificate delivered pursuant hereto shall survive the JV Co 2 Closing and the completion
of the Transactions. 

  

	14.2	General. If there occurs any misrepresentation, breach of warranty, breach of covenant, or other violation by any Party under this Agreement or any other Transaction Documents, such Party shall indemnify and hold
harmless other Parties, their respective Affiliates, together with the senior management, directors, employees thereof, from and against any and all Indemnifiable Losses suffered by such other Parties, such Affiliates, such senior management,
directors or employees, directly or indirectly, in relation to the foregoing. 

  
 54 

	14.3	Indemnity by Vianet. Without prejudice to the generality of Section 14.2 (General), Vianet shall indemnify the Investor and its Affiliates against any and all Indemnifiable Losses suffered by the
Investor and its Affiliate arising out of or in connection with the matters set forth in Exhibit 14.3 due to Vianet’s fault as soon as commercially reasonable (but in no event later than forty-five (45) days) after the occurrence of
the foregoing Indemnifiable Losses. For the avoidance of doubt, each of the following shall be deemed as “due to Vianet’s fault”: (a) there is any violation of Applicable Laws by Vianet, the Group Companies or their respective
Affiliates; and (b) there is any breach of any binding contract, agreement or other document in connection with the matters set forth in Exhibit 14.3 by Vianet, the Group Companies or their respective Affiliates. 

In the event any Group Company suffers any Indemnifiable Loss that gives rise to or otherwise entitles the Investor and/or its Affiliates to
any indemnification by Vianet hereunder, Vianet shall have the right to either (i) indemnify such Group Company for the entire amount of the Indemnifiable Loss suffered by such Group Company or (ii) indemnify the Investor (or, at the
Investor’s sole and absolute discretion, an Investor’s designee) for the proportion of the Indemnifiable Loss that is proportionate to the Investor’s direct or indirect shareholding percentage in such Group Company. 

 

	14.4	Non-Exclusive. The foregoing indemnity provisions are not in derogation of other contractual and statutory remedies and rights any Party may have under this Agreement,
other Transaction Documents and Applicable Law. For the avoidance of doubt, no Party is entitled to any repetitive payment and indemnity arising from or in relation to the same breach or default by any other Party. 

 

	15.	TERMINATION 

  

	15.1	Termination of Agreement. This Agreement may be terminated:- 

  

	 	(a)	by all the Parties upon their unanimous written consent; 

  

	 	(b)	by the Investor if the Investor elects to exercise the Dissolution Exit Option pursuant to Section 13.4 (Dissolution Exit); 

  

	 	(c)	by the Investor, if neither tranche of the JV Co 2 Closing in respect of Daxing Project or Yizhuang Project occurs by the Long Stop Date; provided, however, if the failure to occur is solely due to any
breach by the Investor of this Agreement, the Investor shall not have the right to terminate this Agreement pursuant to this Section 15.1(c); 

  

	 	(d)	by Vianet, if neither tranche of the JV Co 2 Closing in respect of Daxing Project or Yizhuang Project occurs by the Long Stop Date solely due to any breach by the Investor of this Agreement; 

 

	 	(e)	by the Investor if Vianet fails to pay Vianet’s Tranche Subscription Price for the first tranche of the JV Co 2 Closing and such failure is not cured within forty (40) days; 

 

	 	(f)	by Vianet if the Investor fails to pay the Investor’s Tranche Subscription Price for the first tranche of the JV Co 2 Closing, and such failure is not cured within forty (40) days; or fails to release the
Onshore Escrow Account pursuant to the provisions of Section 4.3(e) (Release of Onshore Escrow Account), and such failure is not cured within five (5) Business Days; 

  
 55 

	 	(g)	by the Investor, if there occurs a Material Adverse Effect after the date of this Agreement and prior to the JV Co 2 Closing Date (solely for this Section 15.1(g), items (b)(ii) and (b)(iii) in the definition of
“Material Adverse Effect” as set forth in Exhibit 1.1 shall not apply in determining whether a Material Adverse Effect occurs); 

  

	 	(h)	by the Investor if there is a Material Breach; 

  

	 	(i)	by Vianet if there is an Investor Material Breach; 

  

	 	(j)	by any Shareholder upon the winding up of JV Cos and completion of the distribution of proceeds, if any, from such winding up; 

  

	 	(k)	with respect to a Shareholder, upon the date on which such Shareholder ceases to hold any shares in JV Cos; provided, however, that such Shareholder’s cessation to hold any shares shall not be a
breach of this Agreement; 

  

	 	(l)	by any Shareholder upon the successful completion of an IPO or REIT of any of JV Cos or their Subsidiaries (provided that such termination shall only be applicable to those provisions hereof relating to such Group
Company that achieves an IPO or REIT); or 

  

	 	(m)	by either Shareholder if any Government Entity having relevant jurisdiction or power mandatorily requires that the Transactions contemplated hereby be terminated and the Shareholders fail to resolve such requirement by
such Government Entity after using Best Efforts within 180 days after the date of such requirement by such Government Entity. 

  

	15.2	Effects of Termination. If this Agreement is terminated pursuant to the provisions of Section 15.1 (Termination of Agreement):- 

 

	 	(a)	No Further Effect. This Agreement shall become invalid and have no further effect; provided, however, that termination of this Agreement (howsoever occasioned) shall not affect any accrued rights or
liabilities to any Shareholder, nor shall it affect the effect of any provision hereof which is expressly or by implication intended to come into or continue in force on or after such termination, including those sections set out in
Section 15.3 below; 

  

	 	(b)	Termination of Ancillary Agreements. The Parties hereby agree that they shall take any and all necessary actions to terminate any ancillary agreements entered into in connection with this Agreement; and

  

	15.3	Survival. Notwithstanding any other provisions, the provisions of Section 9.3 (Confidentiality and Publicity), Section 13 (Exit), Section 14 (Indemnity), this Section 15 (Termination) and
Section 16 (Miscellaneous) shall survive any expiration or termination of this Agreement. 

  
 56 

	16.	MISCELLANEOUS 

  

	16.1	Taxes and Expenses. 

  

	 	(a)	Taxes. Each of the Parties shall bear all Taxes arising from the Transactions contemplated hereby pursuant to the requirements of Applicable Laws. 

 

	 	(b)	Expenses. In the event that the Transactions contemplated hereby are not consummated, each of the Parties shall bear its own due diligence costs, advisory fees and costs and expenses incurred in connection with
their respective negotiation and preparation of this Agreement and any other related agreements. 

  

	 	(c)	Reimbursement. In the event that the Transactions contemplated hereby are consummated, the Group Companies shall pay to each of the Shareholders their respective reasonable due diligence costs, advisory fees and
costs and expenses incurred in connection with their respective negotiation and preparation of this Agreement and any other related agreements, which are subject to a cap of US$500,000 for each of the Shareholders. The Shareholders shall provide the
Group Companies with valid invoices to support the foregoing reimbursements. 

  

	16.2	Binding Effect; Assignment. This Agreement shall be binding upon and shall be enforceable by each Party, its successors and permitted assigns. Subject to Section 11.2 (Permitted Transfers), no Party may
assign any of its rights or obligations hereunder without the prior written approval of the other Parties. 

  

	16.3	Governing Law. This Agreement shall be governed by, and construed in accordance with, the laws of Hong Kong without regard to conflict of laws principles thereunder. 

 

	16.4	Dispute Resolution. 

  

	 	(a)	Dispute. Any dispute, controversy or claim (each, a “Dispute”) arising out of or relating to this Agreement, or the interpretation, breach, termination or validity hereof, shall be
referred to and finally resolved by arbitration administered by the Hong Kong International Arbitration Center (“HKIAC”) in accordance with the HKIAC Administrated Arbitration Rules (the “Rules”) in
effect when the Notice of Arbitration is submitted, which Rules are deemed to be incorporated by reference into this Section 16.4 (Dispute Resolution). The seat of arbitration shall be Hong Kong. Before resolving the Dispute by way of
arbitration as provided in this Section 16.4 (Dispute Resolution), the Dispute shall be resolved at the first instance through consultation between the Parties to such Dispute. Such consultation shall begin immediately after any Party has
delivered written notice to any other Party to the Dispute requesting such consultation (the “Notice of Escalation of Dispute”). If the Dispute is not resolved within thirty (30) days following receipt of the Notice of
Escalation of Dispute in accordance with Section 16.7 (Notices), the Dispute shall be submitted to arbitration by any of the Parties in accordance with this Section 16.4 (Dispute Resolution). The thirty
(30)-day consultation period set out in this Section 16.4(a) (Dispute) shall not apply to applications seeking conservatory or interim relief. 

  
 57 

	 	(b)	Arbitration Tribunal. The arbitral tribunal shall be composed of three (3) arbitrators. The arbitration proceedings shall be conducted in English. If the Rules are in conflict with the provisions of this
Section 16.4 (Dispute Resolution), including but not limited to the provisions concerning the appointment of arbitrators, the provisions of this Section 16.4 (Dispute Resolution) shall prevail. The arbitrators shall decide any Dispute
submitted by the Parties strictly in accordance with the substantive law of Hong Kong. 

  

	 	(c)	Matters Not in Dispute. When any Dispute occurs and when any Dispute is under arbitration, except for the matters in dispute, the Parties shall continue to fulfill their respective obligations and shall be
entitled to exercise their rights under this Agreement. The award of the arbitral tribunal shall be final and binding upon the Parties and shall be enforceable in any court of competent jurisdiction. The costs of arbitration shall be borne by the
losing Party on full indemnity basis, unless otherwise determined by the arbitral tribunal. 

  

	 	(d)	Exclusive Remedy. The Dispute resolution provisions of this Section 16.4 (Dispute Resolution) shall be the sole and exclusive remedy and process to resolve any Disputes under or pursuant to this Agreement.
Nothing in this Section 16.4 (Dispute Resolution) shall be construed as preventing any Party from seeking conservatory or interim relief (including injunction, specific performance or other similar or comparable forms of equitable relief) from
any court of competent jurisdiction. For the avoidance of doubt, the thirty (30)-day consultation period set out in Section 16.4(a) (Dispute) shall not apply to applications seeking conservatory or interim
relief. 

  

	16.5	Language. This Agreement shall be executed in English. 

  

	16.6	Effectiveness and Amendments. Except as otherwise permitted herein, this Agreement and its provisions may be amended, changed, waived or terminated only by a writing signed by each of the Parties. This Agreement
shall enter into effect from the date when this Agreement is executed by all of the Parties or their respective duly authorized representatives. 

  

	16.7	Notices. All notices, claims, requests, demands and other communications under this Agreement shall be made in writing and shall be delivered to any Party hereto by hand or sent by facsimile, or sent, postage
prepaid, by reputable overnight courier services at the address given for such Party on Exhibit 16.7 (or at such other address for such Party as shall be specified by like notice), and shall be deemed given when so delivered by hand, or if
sent by facsimile, upon receipt of a confirmed transmission receipt, or if sent by overnight courier, seven (7) days after delivery to or pickup by the overnight courier service. Any of the foregoing notices and other communications may be
accompanied with (but not replaced by) email to the email address given for a Party on Exhibit 16.7 (or at such other email address for such Party as shall be specified by like notice). Each Party shall promptly (and in any event within
fourteen (14) days of the event taking place) notify the other Parties shall there be a change in the address of service. 

  

	16.8	Entire Agreement. This Agreement and all other Transaction Documents (together with documents mentioned herein and therein) constitute the entire agreement among the Parties with respect to the subject matter
hereof and supersedes all prior written or oral understandings or agreements (including without limitation, the Framework Agreement). 

  
 58 

	16.9	Severability. If any provision of this Agreement shall be held invalid or unenforceable to any extent, the remainder of this Agreement shall not be affected thereby and shall be enforced to the greatest extent
permitted by Applicable Law. 

  

	16.10	Counterpart Execution. This Agreement shall be executed in three (3) counterparts, each of which shall be deemed an original but all of which together shall constitute one and the same instrument. Each Party
shall hold one (1) counterpart. 

  

	16.11	Drafting Presumption. This Agreement shall be construed fairly as to each Party regardless of which Party drafted it. Each Party acknowledges and agrees that each of them played a significant and essential role
in the preparation, drafting and review of this Agreement. 

  

	16.12	Conflicts among Transaction Documents. In the case of any conflict between this Agreement and other Transaction Documents, this Agreement shall prevail as among the Parties only, and the Parties shall procure
that the constitutional documents of the relevant Group Companies are promptly amended, to the extent permitted by Applicable Laws, in order to remove such conflict. 

 

	16.13	Limitation on Benefits of this Agreement. A person who is not a party (or the successor or assignee, immediate or otherwise, of a party, or the person becoming a party by novation) to this Agreement shall not
have any rights under the Contracts (Rights of Third Parties) Ordinance (Cap. 623) to enforce any term of this Agreement. 

[Remainder of this page intentionally left blank; signature pages to follow.] 

  
 59 

 Signature Page to the Investment Agreement 

IN WITNESS WHEREOF, each of the Parties hereto has caused this Agreement to be executed by their duly authorized signatories on the date
first set forth above. 
  

													
	21VIANET GROUP, INC.
					
	By:	 	 /s/ Sheng CHEN
	 		 	By:	 	 /s/ Steve Zhang

							
		 	Name:	 	Sheng CHEN	 		 		 	Name:	 	Steve Zhang
							
		 	Title:	 	Director	 		 		 	Title:	 	Director
	
	21VIANET DRP INVESTMENT HOLDINGS LIMITED
					
	By:	 	 /s/ Sheng CHEN
	 		 	By:	 	 /s/ Steve Zhang

							
		 	Name:	 	Sheng CHEN	 		 		 	Name:	 	Steve Zhang
							
		 	Title:	 	Director	 		 		 	Title:	 	Director

 Signature Page to the Investment Agreement 

IN WITNESS WHEREOF, each of the Parties hereto has caused this Agreement to be executed by their duly authorized signatories on the date
first set forth above. 
  

					
	MARBLE STONE HOLDINGS LIMITED

					
		
	By:	 	 /s/ Tara O’Neill

			
		 	Name:	 	Tara O’Neill
			
		 	Title:	 	Director

 Exhibit 1.1 

Definitions 
 1. The following terms shall
have the following meanings:- 
 “21Vianet HK” means 21 ViaNet Group Limited

, a limited liability company incorporated under the laws of Hong Kong. 
 “21Vianet
VNB” means Beijing 21Vianet Broad Band Data Center Co., Ltd.

, a limited liability company incorporated under the laws of the PRC. 
 “Action” means any claim,
action, suit, arbitration, inquiry, proceeding or investigation by or before any Government Entity. 
 “Affiliate” with respect to a
specified Person means (a) in the case of an individual, such Person’s siblings, spouse and lineal descendants or antecedent (whether natural or adopted) and any trust formed and maintained solely for the benefit of such Person, such
Person’s siblings, spouse and/or such lineal descendants or antecedent, and (b) in the case of any Person, a Person that directly, or indirectly through one or more intermediaries, Controls or is Controlled by, or is under common Control
with, the Person specified, and with respect to the Investor, excludes JV Cos and any of their respective Subsidiaries or other Affiliates. In the case of any of the Parties being an investment fund (or a Subsidiary of an investment fund), the term
“Affiliate” shall include, without limitation, any other investment fund (or a Subsidiary of any such investment fund) managed by the same manager of such investment fund (or, if such Party is a Subsidiary of an investment fund, the same
manager of the investment fund of which such Party is a Subsidiary). 
 “AIC” means the State Administration for Industry and
Commerce and/or its local branches, as applicable. 
 “Anti-Bribery Laws” means (a) the US Foreign Corrupt
Practices Act of 1977, as amended, and the rules and regulations issued thereunder, (b) the PRC Criminal Law, the PRC Anti-Unfair Competition Law, the Interim Rules of the State Administration for Industry and Commerce on Prohibition of
Commercial Bribery, and any other PRC law, rule, regulation, judicial interpretation, or other legally binding measure that contains anti-bribery or corruption provisions or that otherwise relates to bribery or corruption, and (c) any other
law, rule, regulation, or other legally binding measure of any jurisdiction that relates to bribery or corruption. 
 “Applicable
Law” or “Applicable Laws” means, with respect to any activities or matters conducted by or happen to any Person, any and all provisions of any law, regulation, code, rule, judgment,
rule of common law, order, decree, award, injunction, governmental approval, license, directive, or other governmental restriction or any similar form of decision of, or determination by, or any interpretation or administration of any of the
foregoing by, any Government Entity, applicable to such Person or any of its assets or undertakings at the time when such activities are conducted or when such matters happen (as applicable). 

“Appraiser” means any of Jones Lang LaSalle, CB Richard Ellis, Savills Property Services, DTZ Debenham Tie Leung or Colliers
International, or such other internationally reputable appraiser agreed by the Shareholders in writing. 

  
 1 

 “Asia” means collectively the following jurisdictions: Afghanistan, Armenia, Azerbaijan,
Bahrain, Bangladesh, Bhutan, Brunei, Cambodia, China (which, for the purpose of this definition, includes Hong Kong, Macau and Taiwan), Cyprus, Georgia, India, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Korea (North), Korea (South),
Kuwait, Kyrgyzstan, Laos, Lebanon, Malaysia, Maldives, Mongolia, Myanmar, Nepal, Oman, Pakistan, Philippines, Qatar, Russia, Saudi Arabia, Singapore, Sri Lanka, Syria, Tajikistan, Thailand, Timor-Leste/East Timor, Turkey, Turkmenistan, United Arab
Emirates, Uzbekistan, Vietnam and Yemen. 
 “Best Efforts” means, in relation to a Person, taking all steps
that a prudent Person desirous of achieving a result would take in similar circumstances to achieve that result as expeditiously as possible. 

“Big Four Accounting Firm” means any of (i) Ernst &
Young, (ii) PricewaterhouseCoopers, (iii) Deloitte & Touche Tohmatsu and (iv) KPMG. 
 “Business
Day” means a day (other than a Saturday or Sunday) when banks in China, Hong Kong, the Cayman Islands, the British Virgin Islands, Singapore and New York are open for business. 

“Cash” shall mean in respect of a Group Company, all cash held by such Group Company, for the avoidance of doubt excluding outstanding
checks and wire transfers of such Company as at the relevant time. 
 “Chairman” means the chairman of the board of JV Cos (or the
relevant Group Company, as applicable) from time to time. 
 “Control” (including the correlative meanings of the terms
“Controlling”, “Controlled by” and “under common Control with”) means, with respect to any
Person, direct or indirect possession of the power to direct or cause the direction of the management or policies of such Person, whether through the ownership of securities or title to properties, by contract or otherwise. 

“Daxing Financing Lease” means collectively, (a) the Financing Lease Contract

 between

 and

 numbered KJZLA2014-029 and dated 4 September 2014; (b) the Financing Lease Contract

 between

 and

 numbered KJZLA2014-037 and dated 28 November 2014; (c) the Leased Property Purchase Contract

 among

,

 and

 numbered 5275308108CHNLYES7-SJHL and dated 10 July 2015; (d) the Financing Lease Contract

 between

 and

 numbered CI64HZ1604077445 and dated 26 April 2016; (e) the Financing Lease Contract

 between

 and 21Vianet VNB numbered 2015050201-HZ01 and dated 16 October 2015; and (f) any amendments, supplements, notations to the foregoing. 

“Disclosure Schedule” means the disclosure schedule delivered by VNET and Vianet to the Investor on or prior to
the date hereof. 
 “EBITDA” means, with respect to any Group Company, the earnings before interest, income taxes, depreciation and
amortization. If the subject Group Company is in operation for less than a full fiscal year, such EBITDA shall be annualized as if that Group Company has been in operation for a full fiscal year. For the avoidance of doubt, business taxes and value
added taxes (if applicable) shall be deducted for the calculation of the EBITDA and any extraordinary, non-cash or non-recurring revenues shall be explicitly excluded
from the EBITDA. EBITDA shall be assumed to be zero if the calculated amount is less than zero. 

  
 2 

 “Encumbrance” means and includes, without limitation, any interest or equity of any
person (including, without limitation to any right to acquire, option or right of pre-emption) or any mortgage, pledge, lien, option, charge, assignment, hypothecation, contractor’s lien, or other
agreement or arrangement which has the same or a similar effect to the granting of security or a security interest over or in the relevant property. 

“Excess Cash” means, at an applicable time, the cash balance of the Group Companies calculated pursuant to the
following:- 
  

	(a)	All of the then existing cash balance of the Group Companies; plus 

  

	(b)	All of the cash inflow of the Group Companies (including without limitation, all rental, property management revenue and ancillary revenue) that shall be due and payable to each Group Company within three
(3) months following the time of determination of the Excess Cash pursuant to a then valid and effective contract or agreement duly entered into by such Group Company; minus 

 

	(c)	All of the cash outflow of the Group Companies (including without limitation, all capital expenditures and other payments) that shall be due and payable by each Group Company within three (3) months following the
time of determination of the Excess Cash pursuant to a then valid and effective contract or agreement duly entered into by such Group Company (including payment under construction contract, land premium, employee salary, repayment of debt and
interest). 

 “Existing Projects” means the projects as set forth in Schedule A, and
“Existing Project” means any one of them. 
 “Existing Project
Companies” means the project companies as set forth in Schedule A, and “Existing Project Company” means any one of them. 

“Foshan Offshore SPV” means Asia Quality Limited

, a limited liability company incorporated under the laws of Hong Kong. 
 “Government
Approval” means any consent, approval, authorization, waiver, permit, grant, franchise, concession, license, ruling, judgment, decree, exemption or order of, registration, certificate, declaration, filing, report, notice,
right or privilege by, to, or with any Government Entity. 
 “Government Entity” means 

 

	(a)	the government of any jurisdiction (or any political or administrative subdivision thereof), whether provincial, state or local, and any department, ministry, agency, instrumentality, court, central bank or other
authority thereof, including without limitation any entity directly or indirectly owned or controlled thereby; 

  

	(b)	any public international organization or supranational body (including without limitation the European Union) and its institutions, departments, agencies and instrumentalities; and 

 

	(c)	any quasi-governmental or private body or agency lawfully exercising, or entitled to exercise, any administrative, executive, judicial, legislative, regulatory, licensing, competition, tax or other governmental or
quasi-governmental authority. 

  
 3 

 “Government Official” means any officer, employee or representative
of a Government Entity (including without limitation, for purposes of this definition, any entity or enterprise owned or Controlled by a government), any Person acting in an official capacity for or on behalf of any such Government Entity, or any
candidate for political office or an person acting on his or her behalf. 
 “Group Companies” means,
collectively, JV Cos and their respective direct or indirect Subsidiaries (including any company that would become a Subsidiary upon completion of the Restructuring) and “Group Company” means any one of
them. 
 “Hong Kong” means the Hong Kong Special Administrative Region of the People’s Republic of China.

 “Indebtedness” means any indebtedness for or in respect of:- 

 

	(a)	moneys borrowed; 

  

	(b)	any amount raised by acceptance under any acceptance credit facility; 

  

	(c)	any amount raised pursuant to any note purchase facility or the issue of bonds, notes, debentures, loan stock or any similar instrument; 

 

	(d)	the amount of any liability in respect of any lease or hire purchase contract which would be treated as a finance or capital lease; 

  

	(e)	receivables sold or discounted (other than any receivables to the extent they are sold on a non-recourse basis); 

 

	(f)	any amount raised under any other transaction (including any forward sale or purchase agreement) having the commercial effect of a borrowing; 

 

	(g)	any derivative transaction entered into in connection with protection against or benefit from fluctuation in any rate or price (and, when calculating the value of any derivative transaction, only the marked to market
value shall be taken into account); 

  

	(h)	any counter-indemnity obligation in respect of a guarantee, indemnity, bond, standby or documentary letter of credit or any other instrument, in each case, issued by a bank or financial institution; and

  

	(i)	the amount of any liability in respect of any guarantee or indemnity for any of the items referred to in paragraphs (a) to (h) above. 

“Indemnifiable Loss(es)” means, with respect to any Person, any action, cost, damage, disbursement, expense,
Liability, loss, deficiency, diminution in value, obligation, penalty or settlement of any kind or nature as recognized by the Parties or HKIAC. Notwithstanding anything to the contrary provided in the preceding sentence,
“Indemnifiable Loss(es)” shall include, but shall not be limited to, (i) interest or other costs, penalties, legal, accounting and other professional fees and expenses reasonably incurred in the
investigation, collection, prosecution or defense of claims and amounts paid in settlement, that have been imposed on or otherwise incurred or suffered by such Person; and (ii) any Taxes that have been payable by such Person by reason of the
indemnification of any Indemnifiable Loss hereunder, other than Taxes that would have been payable notwithstanding the event giving rise to indemnification. 

  
 4 

 “Investor Director” means any director of JV Cos (or the relevant
Group Company, as applicable) appointed/nominated by the Investor, and “Investor Directors” means all of them. 

“Investor Material Breach” means the occurrence of any of the following at any time:- 

 

	(a)	a breach of any provision of Section 8 (Representations and Warranties) by the Investor that is:- 

  

	 	(i)	not capable of remedy; or 

  

	 	(ii)	a second breach within eighteen (18) months of a previous breach (that is capable of remedy); or 

  

	 	(iii)	capable of remedy but not remedied within the cure period (if any) as expressly provided under the relevant Transaction Document, 

in the case of items (i) and (ii) above, such breach has a negative monetary impact of at least RMB5,000,000 on the business, prospects,
operations, assets, Liabilities, results of operations or conditions (financial or otherwise) of the Group Companies taken as a whole; or 
  

	(b)	a default under Section 4 (Investment Commitment), Section 10.3 (Reserved Matters) or Section 11 (Transfer Restrictions) by the Investor, subject to the relevant cure period provided herein.

 “IRR” means an amount to be received by a Shareholder sufficient to cause said Shareholder to have received, as at
the date of determination, an aggregate internal rate of return of a stated rate per annum on any investment, contributions, payments or advance, as calculated in US dollars and after deduction of any Tax, fees or other transaction costs payable
(including, without limitation, any PRC withholding taxes or other taxes in respect of any dividends or distributions payable by any onshore Group Company to its respective shareholder, but excluding the income taxes (if any) payable by the
Shareholders to the tax authority in the jurisdiction of its incorporation for the dividends or distribution which it obtains from JV Cos). For such purposes, an internal rate of return shall be calculated in US dollars using the “xIRR”
function in Excel and using investment, contributions, payments and advances made or credited as the investment “out-flows” with any distributions received by said Shareholder at any time from the
date it makes the foregoing investment, contributions, payments or advances (as appropriate) taken into account as “in-flows” on a discounted cash flow basis. 

“Josh Chen” means Mr. Chen Sheng

, an individual with the last four (4) numbers of his PRC identification card number being 1450. 

“Key Management” means the chief executive officer, the chief financial officer, the chief operation officer, the
general manager and the head of each department of JV Cos and other Group Companies. 
 “Liability” or
“Liabilities” means, with respect to any Person, liabilities owed by such Person of any nature, whether accrued, absolute, contingent, fixed or otherwise, direct or indirect, actual or consequential, or whether known or
unknown, and whether due or to become due or otherwise. 
 “LIBOR” means, in relation to any loan: 

 

	(a)	the applicable Screen Rate as of 10:00 a.m. on the day falling two (2) days before the drawdown date of that loan for US Dollars and for a period equal in length to the interest period of that loan and, if any such
rate is below zero, LIBOR will be deemed to be zero; or 

  

	(b)	(if no Screen Rate is available), a rate to be separately agreed upon by the Shareholders. 

  
 5 

 “Material Adverse Effect” means any change,
circumstance, event or effect that, individually or in the aggregate:- 
  

	(a)	Has a material adverse effect (in the event that such material adverse effect can be quantified, of at least RMB10,000,000, individually or in aggregate, as mutually agreed upon by the Shareholders or determined by a
Big Four Accounting Firm mutually selected by the Shareholders) on the operations, assets or Liabilities of each Group Company (or a series of Group Companies established for one Project) or each Project; provided that, any material adverse effect
(whether or not being less than RMB10,000,000) shall be deducted from the Agreed Asset Value of the relevant Project; and/or 

  

	(b)	Would materially impair the ability of any Party to perform its obligations under this Agreement or any other Transaction Document to which it is a party, provided that none of the following shall constitute or be
deemed to contribute a Material Adverse Effect in this item (b), or shall otherwise be taken into account in determining whether a Material Adverse Effect in this item (b) has occurred or would reasonably be expected to occur (for the avoidance
of doubt, item (a) above shall not be affected): any adverse effect arising out of, resulting from or attributable to: (i) changes or proposed changes in Applicable Laws, US GAAP or the interpretation or enforcement thereof after the
date hereof, (ii) general changes after the date hereof in global economic, financial, regulatory, or geopolitical conditions, (iii) changes after the date hereof in the industries in which any Group Company operates; (iv) actions or
omissions required of any Group Company under this Agreement or taken or not taken solely at the express written request of the Investor, (v) any breach, violation or non-performance of any provision of
this Agreement by the Investor, (vi) any item or matter disclosed in the Disclosure Schedules, (vii) the negotiation and execution of this Agreement and other Transaction Documents, the transactions contemplated hereby and thereby,
(viii) the expiration or termination by its terms of any contract to which any Group Company is a party, which expiration or termination is not due to a breach by such Group Company to such contract, or (ix) any failure by any Group
Company to meet any non-binding and non-committed financial projections or forecasts, provided, that in the case of (ix), the underlying cause of, or facts giving rise
or contributing to, such changes or failure may be taken into account in determining whether a Material Adverse Effect has occurred (except to the extent subject to any other foregoing exception), except, in the case of item (i), (ii) or (iii), to
the extent that any Group Company, taken as a whole, is disproportionately affected thereby as compared with other participants in the industries in which the Group Companies operate (in which case the incremental disproportionate impact or impacts
may be taken into account in determining whether a Material Adverse Effect has occurred or would reasonably be expected to occur) 

provided, further, if any material adverse effect set forth above is immediately and appropriately cured by Vianet or the Group Companies, it
will not be deemed as a material adverse effect hereunder. 
 “Material Breach” means the occurrence of any of
the following at any time:- 
  

	(a)	A breach of any provision of Section 8 (Representations and Warranties) and Exhibit 8.2(a)(i) by VNET and/or Vianet (as applicable), Section 9.4(a) (General Compliance), Section 9.4(d) (Additional
Anti-Bribery Covenants) by Vianet that is:- 

  

	 	(i)	not capable of remedy; or 

  

	 	(ii)	a second breach within eighteen (18) months of a previous breach (that is capable of remedy); or 

  

	 	(iii)	capable of remedy but not remedied within the cure period (if any) as expressly provided under the relevant Transaction Document, 

in the case of items (i) and (ii) above, such breach has a negative monetary impact of at least RMB5,000,000 on the business, prospects,
operations, assets, Liabilities, results of operations or conditions (financial or otherwise) of the Group Companies taken as a whole; or 

  
 6 

	(b)	any failure of the Restructuring to be completed in accordance with the time schedule set forth therein (except for those directly caused by a non-performance by the Investor of
its obligations under the Restructuring and Transaction Plan); 

  

	(c)	a default under Section 2 (Investment Structure), Section 4 (Investment Commitment), Section 7 (Excess Cash Distribution), Section 9.4(b) (FCPA), Section 94(e) (Audit Rights), Section 9.5
(Exclusivity and Non-Competition), Section 9.6 (Ordinary Course of Business), Section 10.3 (Reserved Matters), Section 10.5 (Information and Inspection Rights of Investor), Section 11
(Transfer Restrictions), Section 12.3 (Merger of JV Cos) or Section 13 (Exit) by VNET or Vianet (as applicable), subject to the relevant cure period provided herein; or 

 

	(d)	a Misconduct Event. 

 “Misconduct Event” means the occurrence of
any of the following at any time:- 
  

	(a)	any of Vianet, the Group Companies, their Affiliates, or any of their employees, directors or agents (excluding (x) the Investor Directors, and (y) any agent engaged by the Investor):- 

 

	 	(i)	having committed fraud, wilful misconduct or negligence; or 

  

	 	(ii)	having committed misappropriation, theft or conversion of, or with respect to, any funds, revenues, assets, proceeds or payments, 

under any of the Transaction Documents, or otherwise in relation to any Group Company, provided that, an event in respect of an employee,
director or agent (for the avoidance of doubt, excluding the Investor Directors and any agent engaged by the Investor):- 
  

	 	(iii)	under paragraph (a)(i) above, the event or a series of related or similar events has a negative monetary impact of at least RMB1,000,000 (RMB5,000,000 for negligence) on the business, prospects, operations, assets,
Liabilities, results of operations or conditions (financial or otherwise) of the Group Companies taken as a whole; or 

  

	 	(iv)	under paragraph (a)(ii) above, the event has occurred twice where the first event has a negative monetary impact of at least RMB400,000 and the second event (whether or not it relates to the same employee, director or
agent) has a monetary impact of RMB40,000, or where two events have occurred with an aggregate negative monetary impact of RMB440,000 or more on the business, prospects, operations, assets, Liabilities, results of operations or conditions (financial
or otherwise) of the Group Companies taken as a whole; or 

  

	(b)	Vianet has committed a crime, or is subject to any criminal detention for a period longer than forty (40) days or administrative detention for a period longer than thirty (30) days, and which detention causes
loss or damage (including any loss of reputation) to any of the Group Companies. 

  
 7 

 “MOFCOM” means the Ministry of Commerce of the PRC and/or its local branches, as
applicable. 
 “NDRC” means the National Development and Reform Commission of the PRC and/or its local branches, as applicable. 

“Net Debt” means in respect of a Group Company, an amount (which may be a positive or a negative number) equal to
the aggregate amount of Indebtedness borne by such Group Company less the aggregate amount of Cash of such Group Company at the relevant time. 

“Order” means any writ, judgment, decree, injunction, award or similar order of any Government Entity (in each case whether
preliminary or final). 
 “Ordinary Course of Business” shall mean,
when used with reference to the Group Companies, the ordinary course of the business of the Group Companies consistent with past practices and in conducting materially the same business (including but not limited to execution and performance of
contracts). 
 “Person” means any natural person, limited liability company, joint stock company, joint venture, partnership,
enterprise, trust, unincorporated organization or any other entity or organization. 
 “PRC” or “China”
means the People’s Republic of China, solely for purposes of this Agreement, excluding Hong Kong, the Macau Special Administrative Region and Taiwan. 

“Project” means any project invested, acquired and developed by JV Cos or any other Group Companies, including without limitation any
of the Existing Projects, and “Projects” means all of them. 
 “Project Company” any
project company incorporated for the purpose of any Project, including without limitation any Existing Project Company and any project company incorporated for the purpose of any subsequent Project and “Project
Companies” means all of them. 
 “Related Party” means with respect to any specified
Person, any Person (a) that is a “connected person” of such Person as defined in the U.S Securities Act of 1933 and the U.S. Securities Exchange Act of 1934, or (b) whose assets, or a portion thereof, are consolidated with its
net earnings, or (c) over which it or any of the Persons described in (a) and (b) above exercises Control or significant influence through voting, position, ownership, contract or otherwise. 

“Representatives” means, with respect to a Person, that Person’s senior managers, directors, accountants, counsel, investment
bankers, financial advisors, agents and other representatives. 
 “Retail Colocation
Business” means (a) provision of data center related information technology services, including without limitation managed data center services, cloud infrastructure services and colocation services to third party
customers for their own use; and (b) provision of leasing and facility management services for a portion, but not the entirety, of a data center asset to third party customers for their own use. 

“RMB” means Renminbi, the lawful currency of the PRC. 

  
 8 

 “Screen Rate” means the London interbank offered rate administered
by ICE Benchmark Administration Limited (or any other person which takes over the administration of that rate) for US Dollars and a period of six (6) months displayed on page LIBOR01 or LIBOR02 of the Reuters screen (or any replacement Reuters
page which displays that rate), or on the appropriate page of such other information service which publishes that rate from time to time in place of Reuters. If such page or service ceases to be available, the Shareholders may specify another page
or service displaying the relevant rate. 
 “Securities” means, with respect to any Person, such Person’s capital stock,
membership interests, partnership interests, registered capital, joint venture or other ownership interests or any options, warrants or other Securities that are directly or indirectly convertible into, or exercisable or exchangeable for, such
capital stock, membership interests; partnership interests, registered capital, joint venture or other ownership interests (whether or not such derivative Securities are issued by such Person). 

“Shareholding Percentage” means, with respect to any JV Co, the ratio of the number of the issued and outstanding
shares held by a Shareholder in such JV Co as at a certain date to the total number of the issued and outstanding shares of such JV Co as at the same date. 

“Subsidiary” means, with respect to any given Person, any other Person that is not a natural person and that is directly or indirectly
Controlled by such given Person. 
 “Tax” or “Taxes” means any national, provincial or local tax, assessment
or duty on or in relation to any income, sales and use, excise, franchise, real and personal property, gross receipt, capital stock, production, business and employment, payroll, severance or withholding tax or any other type of tax, assessment or
custom duty imposed by any Government Entity, any interest and penalties (civil or criminal) related thereto or to the nonpayment thereof, and any loss or Tax Liability incurred in connection with the determination, settlement or litigation of any
Liability arising therefrom. 
 “Tax Return” means all Tax returns, statements, reports, declarations and other
forms and documents (including without limitation estimated Tax returns and reports and material information returns and reports). 

“Transaction Documents” means this Agreement, the JV Co 1 Articles, the JV Co 2 Articles, the JV Co 3 Articles,
constitutional documents of other Group Companies, the Master Service Agreements and any material agreement, contract, deed or other documents in connection with this Agreement or the Transactions contemplated hereby. 

“Transfer” means any direct or indirect transfer (including but not limited to transfer of holding companies), sale, assignment,
pledge, hypothecation, encumbrance, gift or other disposition, whether voluntary or by operation of law, of all or any share or other securities of a company or entity. 

“US GAAP” means the generally accepted accounting principles in the United States of America from time to time.

 “US$” and “US Dollars” means the lawful currency of the United States of America.

 “Xi’an Offshore SPV” means 21 Vianet @Xian Holding Limited, a business company
with limited liability incorporated under the laws of the British Virgin Islands. 

  
 9 

 2. The following terms are defined in the following sections of this Agreement:- 

 

			
	Term	  	Section
	“Advanced Companies”	  	Section 2.3(g)(i)
	“Agreed Asset Value”	  	Section 4.2(b)(i)
	“Agreement”	  	Preamble
	“Amended Daxing Documents”	  	Section 4.1(g)(ii)
	“Amended Yizhuang Documents”	  	Section 4.1(b)(ii)
	“Annual Business Plan and Budget”	  	Section 10.2(g)
	“Closing Statement”	  	Section 4.3(a)
	“Confidential Information”	  	Section 9.3(a)
	“Conflicted Shareholder”	  	Section 9.2
	“Daxing 49% Equity Transfer”	  	Section 4.1(f)(iii)
	“Daxing 49% Registration Date”	  	Section 4.1(f)(iv)
	“Daxing 51% Equity Transfer”	  	Section 4.1(g)(ii)
	“Daxing 51% Registration Date”	  	Section 4.1(g)(iii)
	“Daxing Closing”	  	Section 4.1(g)(iv)
	“Daxing Documents”	  	Section 4.1(f)(iii)
	“Daxing Project”	  	Schedule A
	“Daxing Project Agreements”	  	Exhibit 9.8
	“Daxing Project Company”	  	Schedule A
	“Daxing Valuation Report”	  	Section 4.1(f)(ii)
	“Disclosing Party”	  	Section 9.3(a)
	“Dispute”	  	Section 16.4(a)
	“Dissolution Exit”	  	Section 13.4(b)
	“Dissolution Exit Option”	  	Section 13.4(a)
	“Dissolution Notice”	  	Section 13.4(a)
	“Drag-Along Notice”	  	Section 13.1(c)(i)
	“Drag-Along Right”	  	Section 13.1(c)(i)
	“Drag-Along Sale”	  	Section 13.1(c)(i)
	“Dynamic Ruby”	  	Section 4.1(e)(i)
	“Emergency Loan”	  	Section 4.6(a)
	“Employment Contract” 	  	Section 10.4
	“Environmental Licenses”	  	Exhibit 8.2(a)(i)
	“ESSP”	  	Section 6.5
	“Estimated CapEx”	  	Section 4.2(b)(ii)
	“Estimated Equity Value”	  	Section 4.2(b)(iii)
	“Excess Cash Distribution Notice”	  	Section 7.1(a)
	“Final Equity Value”	  	Section 4.3(d)(i)
	“Financial Statements”	  	Exhibit 8.2(a)(i)
	“First Re-scheduled Meeting”	  	Section 10.2(b)

  
 10 

			
	Term	  	Section
	“Foshan 100% Share Transfer”	  	Section 4.1(e)(i)
	“Foshan Closing”	  	Section 4.1(e)(v)
	“Foshan Completion Date”	  	Section 4.1(e)(ii)
	“Foshan Documents”	  	Section 4.1(e)(i)
	“Foshan Project”	  	Schedule A
	“Foshan Project Company”	  	Schedule A
	“Foshan Telecom Owned Assets”	  	Exhibit 8.2(a)(i)
	“Framework Agreement”	  	Recitals
	“Funding Shareholder”	  	Section 4.5(a)
	“HKIAC”	  	Section 16.4(a)
	“Incorporation Costs”	  	Section 2.3(g)(i)
	“Independent Expert”	  	Section 4.3(c)(iii)
	“Injection Notice”	  	Section 12.3(a)(i)
	“Investor”	  	Preamble
	“Investor Offered Rental”	  	Section 5.2(c)
	“Investor’s Option Period”	  	Section 4.4(a)
	“Investor’s Upsize Option”	  	Section 4.4(a)
	“Investor’s Upsize Option Exercise Notice”	  	Section 4.4(b)
	“IPO”	  	Section 12.1(a)
	“JV Co 1”	  	Section 2.3(a)
	“JV Co 1 Articles”	  	Section 2.3(d)
	“JV Co 2”	  	Section 2.3(b)
	“JV Co 2 Articles”	  	Section 2.3(d)
	“JV Co 2 Closing”	  	Section 4.2(d)
	“JV Co 2 Closing Conditions”	  	Section 4.2(c)(i)
	“JV Co 2 Closing Date”	  	Section 4.2(d)
	“JV Co 2 Investment Costs”	  	Section 2.3(g)(ii)
	“JV Co 3”	  	Section 2.3(c)
	“JV Co 3 Articles”	  	Section 2.3(d)
	“JV Cos”	  	Section2.3(c)
	“Licenses”	  	Exhibit 8.2(a)(i)
	“Long Stop Date”	  	Section 3.2
	“Listing Entity”	  	Section 12.3(a)(i)
	“Management Company”	  	Section 2.3(e)(iii)
	“Management HoldCo”	  	Section 2.3(e)(iii)
	“Management Service Agreement”	  	Section 6.1(a)
	“Master Service Agreement”	  	Section 5.3(c)
	“Material Contracts”	  	Exhibit 8.2(a)(i)
	“Merger Notice”	  	Section 12.3(a)(ii)

  
 11 

			
	Term	  	Section
	“Merger Request”	  	Section 12.3(a)(iii)
	“Non-funding Shareholder”	  	Section 4.5(a)
	“Non-Transferring Shareholders”	  	Section 11.3(a)
	“Notice of Escalation of Dispute”	  	Section 16.4(a)
	“Notice of Objection”	  	Section 4.3(b)
	“Onshore Escrow Account”	  	Section 4.1(a)(v)
	“Party” or “Parties”	  	Preamble
	“Permitted Transfer”	  	Section 11.2
	“Prop Co 1”	  	Section 2.3(e)(i)
	“Prop Co 2”	  	Section 2.3(e)(ii)
	“Properties”	  	Exhibit 8.2(a)(i)
	“Receiving Party”	  	Section 9.3(a)
	“Reference Date”	  	Section 4.2(b)(iii)
	“REIT”	  	Section 12.1
	“Related Party Transaction”	  	Section 9.2
	“Requesting Shareholder”	  	Section 9.4(e)
	“Reserved Matters”	  	Section 10.3
	“Restructuring”	  	Section 2.2(a)
	“Restructuring and Transaction Plan”	  	Section 2.2(a)
	“Retail Colocation Business”	  	Section 9.5(a)
	“Review Period”	  	Section 4.3(b)
	“ROFO Completion Period”	  	Section 11.3(b)
	“ROFO Negotiation Period”	  	Section 11.3(a)
	“Rules”	  	Section 16.4(a)
	“Sale Notice”	  	Section 11.3(a)
	“SEC”	  	Section 9.3(a)
	“Second Re-scheduled Meeting”	  	Section 10.2(b)
	“Shareholder” or “Shareholders”	  	Preamble
	“Share Swap Notice”	  	Section 13.2(a)
	“Share Swap”	  	Section 13.2(a)
	“Share Swap Right”	  	Section 13.2(a)
	“Shortfall Event”	  	Section 4.6(a)(i)
	“Sub-Contracting Agreement”	  	Section 5.4
	“Subject Shares”	  	Section 11.3(a)
	“Swap Shares”	  	Section 13.2(a)
	“Tag-Along Notice”	  	Section 11.4(a)
	“Tranche Closing”	  	Section 4.2(a)(i)
	“Tranche Closing Date”	  	Section 4.2(a)(i)
	“Tranche Payment”	  	Section 4.2(c)(ii)

  
 12 

			
	Term	  	Section
	“Transactions”	  	Recitals
	 “Transferring Shareholder”
	  	Section 11.3(a)
	 “Vianet”
	  	Preamble
	 “Vianet ListCo”
	  	Section 13.2(a)
	 “Vianet Offered
Rental”
	  	Section 5.2(a)
	 “Vianet SPV 1”
	  	Section 4.1(b)(i)
	 “Vianet SPV 2”
	  	Section 4.1(g)(i)
	 “Vianet’s Tranche
Subscription Price”
	  	Section 4.2(a)(i)
	 “Vianet’s Tranche
Subscription Shares”
	  	Section 4.2(a)(i)
	 “Vianet’s Upsize
Option”
	  	Section 4.4(c)
	 “VNET”
	  	Preamble
	 “Wholesale Colocation
Business”
	  	Section 9.5(a)
	 “WP”
	  	Preamble
	 “WP’s JV Co
2 Closing Conditions”
	  	Section 4.2(c)(i)
	 “WP SPV 1”
	  	Section 4.1(a)(i)
	 “WP SPV 2”
	  	Section 4.1(f)(i)
	 “WP’s Tranche Subscription
Price”
	  	Section 4.2(a)(ii)
	 “WP’s Tranche Subscription
Shares”
	  	Section 4.2(a)(ii)
	 “Xi’an 100% Share
Transfer”
	  	Section 4.1(d)(i)
	 “Xi’an Closing”
	  	Section 4.1(d)(v)
	 “Xi’an Completion
Date”
	  	Section 4.1(d)(ii)
	 “Xi’an Documents”
	  	Section 4.1(d)(i)
	 “Xi’an Project”
	  	Schedule A
	 “Xi’an Project
Company”
	  	Schedule A
	 “Xi’an Telecom Owned
Assets”
	  	Exhibit 8.2(a)(i)
	 “Yizhuang 49% Equity
Transfer”
	  	Section 4.1(a)(iii)
	 “Yizhuang 49% Equity
Transfer Price”
	  	Section 4.1(a)(v)
	 “Yizhuang 49% Registration
Date”
	  	Section 4.1(a)(iv)
	 “Yizhuang 51% Equity
Transfer”
	  	Section 4.1(b)(ii)
	 “Yizhuang 51% Registration
Date”
	  	Section 4.1(b)(iii)
	 “Yizhuang AIC Submission
Date”
	  	Section 4.1(a)(iv)
	 “Yizhuang Closing”
	  	Section 4.1(b)(iv)
	 “Yizhuang Documents”
	  	Section 4.1(a)(iii)
	 “Yizhuang Project”
	  	Schedule A
	 “Yizhuang Project
Company”
	  	Schedule A
	 “Yizhuang Valuation
Report”
	  	Section 4.1(a)(ii)

  
 13 

 Exhibit 4.2(c)(i) 

Conditions Precedent to Investor’s Investment 

1. WP’s JV Co 2 Closing Conditions:- 
  

	 	(a)	The representations and warranties made by VNET and Vianet in this Agreement shall remain true, correct and complete as at the Tranche Closing Date; 

 

	 	(b)	Vianet shall have performed and complied with all agreements, covenants, obligations and conditions contained in the Transaction Documents that are required to be performed or complied with by it on or before the
Tranche Closing Date; 

  

	 	(c)	All the matters, actions and transactions provided in Section 1 of Exhibit 9.8 shall have been completed; 

  

	 	(d)	No Government Entity having relevant jurisdiction or power has declared that the Transactions contemplated hereby as in violation of any mandatory Applicable Laws or has required the Transactions contemplated hereby be
terminated or suspended; 

  

	 	(e)	No Material Adverse Effect has occurred to any Group Company or Project since the date of this Agreement; 

  

	 	(f)	No Material Breach has occurred or is reasonably expected to occur; 

  

	 	(g)	Each of Vianet and the Group Companies (where applicable) shall have, in compliance with Applicable Laws and Vianet’s corporate governance rules, delivered to WP their respective shareholder resolutions and/or
board resolutions approving, among other things, the Transactions; 

  

	 	(h)	JV Co 2 shall have notified WP in writing at least five (5) Business Days prior to the Tranche Closing Date of wire transfer details; 

 

	 	(i)	Vianet’s legal counsels in the jurisdictions of Hong Kong, the Cayman Islands, the British Virgin Islands and the PRC shall have issued to WP legal opinions in form and substance reasonably satisfactory to WP;

  

	 	(j)	WP has received written documents evidencing that the Restructuring steps that shall be completed on or prior to the Tranche Closing Date have been completed pursuant to the provisions of the Restructuring and
Transaction Plan together with documents supporting such due completion; 

  

	 	(k)	Any and all Governmental Approvals and third party consents the Shareholders mutually agree and deem as necessary with respect to the consummation of the Transaction on or prior to the Tranche Closing Date contemplated
hereby have been duly obtained; 

  
 1 

	 	(l)	WP shall have received:- 

  

	 	(i)	the resolutions by the board of directors of JV Co 2 approving, among other things, (A) the issuance and allotment of WP’s Tranche Subscription Shares, (B) the entry into the Register of Members of JV Co
2 the name of WP as the holder of WP’s Tranche Subscription Shares, and (C) the issuance to WP of a share certificate for WP’s Tranche Subscription Shares; 

 

	 	(ii)	to the extent that there is any update, the resolutions by the shareholder(s) (or board, as applicable) of JV Co 2 approving, among other things, (A) the adoption of JV Co 2 Articles, and (B) the appointment
of the director(s) appointed by WP as director(s) of JV Co 2; 

  

	 	(iii)	to the extent that there is any update, the resolutions by the shareholder(s) (or board, as applicable) of each Group Company (excluding JV Co 2) approving, among other things, (A) the adoption of the memorandum
and articles of association of such Group Company in compliance with the relevant provisions hereof, and (B) the appointment of the director(s) appointed by WP as director(s) of such Group Company; 

 

	 	(m)	The following matters shall have been duly completed: (i) the share certificate for WP’s Tranche Subscription Shares shall have been issued to WP; (ii) the Register of Members of JV Co 2 shall have been
duly updated, evidencing WP as the holder of WP’s Tranche Subscription Shares; (iii) the Register of Directors of JV Co 2 and each Group Company shall have been duly updated, evidencing the director(s) appointed by WP as the director(s) of
JV Co 2 and each Group Company; and (iv) JV Co 2 Articles shall have been duly updated to reflect the terms and conditions of this Agreement. WP shall in good faith provide all necessary assistance to the foregoing actions that shall taken by
Vianet; 

  

	 	(n)	The Master Service Agreement with respect to the relevant Existing Project shall have been duly executed; 

  

	 	(o)	WP shall have received from KPMG the relevant Estimated Equity Value; and 

  

	 	(p)	WP shall have received a certificate in form and substance as set forth in Schedule B signed by Vianet to the effect that all of the conditions set forth in this Section 1 of this Exhibit 4.2(c)(i)
have been fully satisfied. 

  
 2 

 Exhibit 6.5 

Principles of Employee Share Subscription Plan 
  

	1.	Unless otherwise mutually agreed upon by the Shareholders and subject to the unanimous approval by the board of the applicable JV Co, the ESSP shall consist of the following:- 

 

	 	(a)	ESSP in JV Co 2: selected senior management shall have the right to collectively subscribe for up to 2% (or such other percentage mutually agreed by the Shareholders) stake in JV Co 2 at a
pre-money valuation equivalent to the then-current total investment (for the avoidance of doubt, no premium shall be calculated in respect of such total investment) of JV Co 2 immediately prior to the date of
the subscription of shares; and 

  

	 	(b)	ESSP in JV Co 3: selected senior management shall have the right to collectively subscribe for up to 20% (or such other percentage mutually agreed by the Shareholders) stake in JV Co 3 at a pre-money valuation equivalent to the then-current total investment (for the avoidance of doubt, no premium shall be calculated in respect of such total investment) of JV Co 3 immediately prior to the date of the
subscription of shares. 

  

	2.	Both ESSP in JV Co 2 and ESSP in JV Co 3 shall be subject to the unanimous approval by the board of the respective JV Co. The Shareholders acknowledge that the specific amounts of the ESSP are subject to adjustment and
intended to be sufficient to support the senior management of the Group Companies through an IPO or REIT in accordance with the timeline as provided in Section 12 (IPO or REIT), and therefore a portion of the total amount of the ESSP shall be
withheld and granted or vested in appropriate timelines to be approved by the board of the respective JV Co such that there will be sufficient shares (without increasing the total amount of the ESSP) for allocation to future senior management and/or
promotion of existing senior management. 

  
 1 

 Exhibit 8.2(a)(i) 

Representations and Warranties of VNET and Vianet 
  

	1.	GENERAL 

  

	1.1	Exceptions 

 Matters set out in the Disclosure Schedule are exceptions for any and all
representations and warranties of VNET and Vianet contained in this Agreement, including those set forth in this Exhibit 8.2(a)(i). 
  

	1.2	Group Companies 

  

	 	1.	Schedule A sets forth a true and complete list of all Group Companies (including any company that would become a Group Company upon completion of the Restructuring), each of which is or will become upon
completion of the Restructuring a wholly-owned Subsidiary of the JV Cos. There are no Group Companies other than the foregoing listed companies. 

  

	 	2.	Other than the Group Companies, there are no other corporations, partnerships, joint ventures, associations or other entities in which any JV Co or any Group Company owns or will own upon completion of the
Restructuring, of record or beneficially, any direct or indirect equity or other interest or any right (contingent or otherwise) to acquire the same. 

  

	 	3.	Each Group Company (i) is (or will be upon completion of the Restructuring) duly incorporated, validly existing and in good standing under the laws of its jurisdiction of incorporation, (ii) has (or will have
upon completion of the Restructuring) all necessary power and authority to own, operate or lease the properties and assets owned, operated or leased by such Group Company and to carry on its business as has been and is currently conducted by such
Group Company and (iii) is duly licensed and/or qualified to do business and is in good standing in each jurisdiction in which the properties owned or leased by it or the operation of its business makes such licensing and/or qualification
necessary. 

  

	 	4.	There is no (nor will there be upon completion of the Restructuring) Encumbrance on any of shares of or equity interests in the Group Companies nor is there any agreement or commitment to create any such Encumbrance and
no person has claimed to be entitled to do so. 

  

	 	5.	Except as set out in the Disclosure Schedule, the registered capital of each of the onshore Group Companies has been (or will be upon completion of the Restructuring) fully contributed according to the statutory
contribution schedule under the Applicable Law and verified by an accountant registered in the relevant jurisdiction. There have been no feigned contribution of registered capital 

 or illegal withdrawal of the registered capital 

 with respect to any of the onshore Group Companies. 

  

	 	6.	Except as set out in the Disclosure Schedule, the offshore Group Companies are special purpose vehicles and have not engaged in any substantive business or entered into any contract with third parties except as
expressly permitted under this Agreement. 

  

	 	7.	Each of the Group Companies has provided to the Investor with a copy of its minutes books prior to the date hereof. Such copy is true, correct and complete in all material aspects and contains all material minutes of
meetings and actions taken by the applicable Group Company’s shareholders and directors since 2014 through the date hereof, and reflects all transactions referred to in such minutes accurately in all material respects. 

  
 1 

	1.3	Restructuring 

 Each and every steps provided in the Restructuring and Transaction Plan
are in compliance with Applicable Laws and any contract to which any Group Company is a party in all material aspects. To the best knowledge of Vianet, none of the Restructuring steps set forth in the Restructuring Plan will impose any obstacles
that may restrict or prevent an initial public offering or REIT of any of JV Cos or their respective substitute listing or REIT entity, except for those imposed by any change of Applicable Laws after the date of this Agreement. 

 

	1.4	Ownership of Assets 

 Each of the Group Companies has good and marketable title to, or
the valid right to use, all of their respective properties, intellectual property rights and assets (including, without limitation, the Existing Projects), free and clear of Encumbrance adversely affecting title (unless agreed to by the Investor in
writing). The development, current use and operation of the afore-mentioned properties, intellectual property rights and assets (including, without limitation, the Existing Projects) by the relevant Group Companies comply with all Applicable Laws in
all material aspects, and none of Vianet and the Group Companies has received any notice of penalty from any Government Entity with respect to any violation thereof. 
  

	1.5	Litigation 

 There is no judgement, order, claim action, proceeding, or investigation by
or against any of the Group Companies or with respect to the Existing Projects, pending or to the knowledge of Vianet or any Group Company, threatened. 
  

	1.6	Insolvency 

 Each of Vianet and the Group Companies (i) is and has at all times been
solvent, and (ii) is free from pending or threatened bankruptcy, corporate reorganization proceedings, liquidation, or any other insolvency or bankruptcy action or event. 

 

	1.7	Changes and Material Facts 

 There has not occurred any change, development or condition
(financial or otherwise) that has had, or would reasonably be expected to have, individually or in aggregate, a Material Adverse Effect. 

  
 2 

	1.8	Full Disclosure 

 Vianet has made available to the Investor, all information, including
without limitation the financial, marketing, sales and operational information on a historical basis relating to the Group Companies and the Projects, which would be material to an investor in the Group Companies, as requested by the Investor and
its advisors. To the best knowledge of Vianet and the Group Companies, all such information which has been provided to the Investor is true, correct and complete in all material aspects and no material fact or facts have been omitted from that
information which would make such information untrue, inaccurate or unreasonably incomplete. 
  

	1.9	Condemnation 

 There is no condemnation or other government action pending or threatened
to seize any portion of the assets or properties (including without limitation, the Existing Projects) of any Group Company. 
  

	2.	COMPLIANCE WITH LAW 

  

	2.1	General 

  

	 	1.	Each of the Group Companies is in compliance in all material aspects with governmental laws, rules, regulations and orders applicable to it and/or its assets (including, the Applicable Laws governing foreign investment,
labour and employment, contracts, lease, construction, acquisition of land use rights, bidding, auction and listing, anti-corruption and bribery, environmental protection, trademarks, property management, etc.) to the extent as required for the
Ordinary Course of Business of the Group Companies without any Material Adverse Effect. 

  

	 	2.	The operations of each of Vianet and the Group Companies are, and have been, conducted at all times in compliance with, in all material aspects, applicable financial record keeping and reporting requirements and
anti-money laundering statutes in each of the jurisdictions in which it is incorporated and of all jurisdictions in which they conduct business. 

  

	 	3.	Without limiting the generality of above paragraph, none of Vianet and the Group Companies, their Affiliates and their respective directors, officers, agents, employees, Representatives and any other Person acting on
behalf of any of the foregoing has:- 

  

	 	(a)	made, offered, given, promised, or authorized any financial or other advantage (including any payment, loan, gift or transfer of anything of value), directly or indirectly, either (A) to or for the use or benefit
of any Government Official, political party or official thereof, any candidate for political office, or another person at the request or with the assent or acquiescence of any of the foregoing or (B) knowing or being aware of a high probability
that all or a portion of such financial or other advantage (including any payment, loan, gift or transfer of anything of value) would be offered, given or promised, directly or indirectly, to or for the use or benefit of any Government Official,
political party, official thereof, any candidate for political office, or another person at the request or with the assent or acquiescence of any of the foregoing, for the purpose of:- 

 

	 	(1)	(x) influencing any act or decision of such Government Official, political party, party official, or candidate in his or its official capacity; (y) inducing such Government Official, political party, party official
or candidate to do or omit to do any act in violation of the lawful duty of such Government Official, political party, party official or candidate; or (z) securing any improper advantage; or 

 

	 	(2)	inducing such Government Official, political party, party official, or candidate to use his or its influence with any Government Entity to affect or influence any act or decision of such Government Entity

  
 3 

 in order to assist any of the Group Companies and the Shareholders in obtaining, retaining or
soliciting business. 
  

	 	(b)	engaged in any other conduct which would violate the Anti-Bribery Laws. 

  

	2.2	Governmental Consent and Approval 

 Except as set forth in this Agreement or other
Transaction Documents or as otherwise recognized by the Parties in writing, the execution, delivery and performance of this Agreement and the other Transaction Documents by Vianet and any Group Company do not and will not require any consent,
approval, authorization or other order of, action by, filing with or notification to, any Government Entity. 
  

	2.3	Licenses and Consents 

  

	 	(a)	Save as disclosed in this Agreement and/or the Disclosure Schedule, each Group Company has obtained and will maintain all necessary licenses, approvals, permits, registrations, filings and other authorisations
(collectively, the “Licenses”), including without limitation the licenses required by law for the relevant Group Company to own, occupy, use and develop the Existing Projects and other assets and to conduct its business.

  

	 	(b)	To the best knowledge of Vianet and the Group Companies, the Group Companies have complied with the terms of the Licenses to the extent as required to maintain such Licenses under Applicable Laws and no circumstance
exists which may result in the termination, revocation or suspension of any of the Licenses or that may prejudice the renewal of any of them, which will individually, or in the aggregate, have an adverse effect on the operation of the Group
Companies. 

  

	 	(c)	All consents, waivers and notification required for the transactions contemplated hereby have been or will be obtained prior to the closing of the relevant transactions contemplated hereby. 

  
 4 

	2.4	Environmental Matters 

  

	 	(a)	Each Group Company has obtained all necessary permits, licenses or other approval required by or in relation to any applicable environmental laws and energy saving laws of the PRC (collectively,
“Environmental Licenses”) and the Group Company has complied with the terms of the Environmental Licenses in all material respects. All of the Environmental Licenses are in full force and effect. No circumstance exists which
may result in any Environmental License not being renewed or, where necessary, transferred. There are no circumstances which are likely to give rise to any such violation, termination, suspension or revocation of Environmental Licenses and no
notices or other communications have been issued by any government authority in this regard. 

  

	 	(b)	No Group Company has used, disposed of, generated, stored, processed, transported, dumped, released, deposited, buried or emitted any dangerous substance at, on, from, to or under any of its assets or at, on, from, to
or under any other property which is in breach of any applicable environmental laws of the PRC in any material respect. 

  

	 	(c)	No notice, notification, demand, request for information, citation, summons, order or complaint has been received from any third party (including any employee of the Project Companies or governmental, regulatory,
supervisory or administrative body), no penalty has been assessed and no action, suit or proceeding is pending, or to the knowledge of Vianet, threatened (nor to the knowledge of Vianet is there any investigation or review pending) by any Government
Entity or other person with respect to any matters relating to the Project Companies arising out of any applicable environmental law. 

  

	 	(d)	No property or other asset now or previously owned, leased or operated by the Project Companies is listed or, to the knowledge of Vianet, proposed for listing, on the list of sites requiring investigation or clean-up. There has been no environmental investigation, study, audit, test, review or other analysis conducted of which Vianet is aware in relation to the current or prior business of the Project Companies or any
property or facility now or previously owned, leased or operated by the Project Companies which has not been made available to the Investor at least ten (10) Business Days prior to the date of this Agreement. 

 

	 	(e)	There are no liabilities of or relating to the business of the Project Companies of any kind whatsoever, whether accrued, contingent, absolute, determined, determinable or otherwise, arising under or relating to any
applicable environmental law (including any liability to make good, repair, re-instate or clean up land or another asset owned, occupied, possessed or used by the Project Companies on or before the date of
this Agreement) and there are no facts, conditions, situations or set of circumstances which could reasonably be expected to result in or be the basis for any such liability. 

 

	2.5	Convictions 

 Each of the onshore Group Companies, the Xi’an Offshore SPV, Dynamic
Ruby and the Foshan Offshore SPV has not been convicted of any offence. No officer, employee, agent or former officer, agent or employee of any Group Company has been convicted of any offences in relation to any Group Company, and no employee has,
to the best of the knowledge, information and belief of Vianet, been convicted of any offence (save for any traffic offence) which reflects upon his suitability to hold his position or upon the reputation of any Group Company. 

  
 5 

	3.	ACCOUNTS AND FINANCIAL MATTERS 

  

	3.1	Books and Records 

 All accounts, books, ledgers and other financial records of each
Group Company have been properly maintained and contain up to date and accurate records of all matters required to be entered into them by Applicable Laws, and give a true and fair view of the matters which ought to appear in them. 

Section 3.1 of the Disclosure Schedule sets forth true and complete copies of the unaudited consolidated balance sheet of the Group
Companies as of 30 September 2016 (the “Financial Statements”). 
 All financial data and
statements concerning the Group Companies and the Projects that have been delivered to the Investor or its designees (including without limitation, the Financial Statements) are true, complete and correct and, to the extent thereof, accurately
represents in all material aspects the financial condition and results of the operations of the applicable Person as at the date thereof and have been prepared in accordance with US GAAP applied on a basis consistent with the past practices in
all material aspects. 
  

	3.2	Position since Execution Date 

 Since the execution date hereof, except where prior
written consent from the Investor has been obtained:- 
  

	 	(a)	each Group Company has conducted its business in and only in Ordinary Course of Business; 

  

	 	(b)	there has been no Material Adverse Effect in the turnover, operating results or financial position of any Group Company; 

  

	 	(c)	no resolution of the shareholders of any Group Company that is in violation of the provisions of this Agreement has been passed; 

  

	 	(d)	no change has occurred in the accounting methods, principles or practices applied by a Group Company and there has been no revaluation by any Group Company of any of its assets; and 

 

	 	(e)	there has been no material damage, destruction or loss, whether or not covered by insurance, affecting the assets, properties or business of any Group Company. 

 

	3.3	Dividends and Distributions 

 Save as disclosed in this Agreement and/or the Disclosure
Schedule, no dividend or distribution of profits or assets has been or agreed to be declared, made or paid by any Group Company since their respective date of incorporation. 

  
 6 

	3.4	Borrowings and Guarantees 

  

	 	1.	Save as disclosed in this Agreement and the Disclosure Schedule, no Group Company has any outstanding Indebtedness, or any Liability (whether present or future, fixed or contingent, recorded or unrecorded) in respect of
any guarantee or indemnity. 

  

	 	2.	No event has occurred which would entitle any third party (with or without the giving of notice) to call for the repayment of Indebtedness of any Group Company prior to the normal maturity date. 

 

	 	3.	Any and all bank loans, financings and other borrowings of similar nature are obtained in full compliance of the Applicable Laws in all material aspects. 

 

	3.5	Capital Commitment 

 Except as set out in the Disclosure Schedule, the Group Companies do
not have any commitment on capital account outstanding. 
  

	3.6	Related Party Transaction 

 Except as set out in the Disclosure Schedule, there exist no
Related Party transactions in respect of any of the Group Companies. 
  

	3.7	Undisclosed Liabilities 

  

	 	1.	There are no material Liabilities of any Group Company, other than Liabilities (i) reflected or reserved against on the Financial Statements, or (ii) incurred in the Ordinary Course of Business consistent with
past practice. Reserves are reflected on the Financial Statements against all Liabilities of the Group Companies in amounts that have been established on a basis consistent with the past practices of the Group Companies and in accordance with
US GAAP applied on a basis consistent with the past practices of the Group Companies. 

  

	 	2.	None of the Group Companies is a party to, or has any commitment to become a party to, any joint venture, off balance sheet partnership or any similar contract (including any structured finance, special purpose or
limited purpose vehicle or other “off-balance sheet arrangement”). 

  

	4.	COMMERCIAL MATTERS 

  

	4.1	Contracts and Outstanding Offers 

  

	 	1.	All contracts of the Group Companies set out in the Restructuring and Transaction Plan (the “Material Contracts”) have been provided to the Investor before the date hereof. Each Material Contract
is legally binding on the parties to it in accordance with its terms. 

  

	 	2.	No Group Company is in material breach of any Material Contract and no Group Company has given written notice to any counterparty to a Material Contract that such counterparty is in breach of the relevant Material
Contract. No counterparty to any Material Contract has given written notice of its intention to terminate, or has sought to repudiate or disclaim under, any Material Contract. 

  
 7 

	 	3.	The entry into, delivery and performance of the obligations under the Transaction Documents do not and will not result in:- 

  

	 	(i)	a breach of any Material Contract or give the counterparty to a Material Contract the right to terminate, or vary the terms of, such Material Contract; or 

 

	 	(ii)	the creation of an Encumbrance on any assets of any Group Company or any shares or other securities of any Group Company. 

  

	 	4.	Save as disclosed in this Agreement and/or the Disclosure Schedule, none of the Group Companies is a party to any contract entered into otherwise than on an arm’s length basis and in the Ordinary Course of Business
thereof. 

  

	 	5.	Any and all contracts, agreements and other arrangements entered into by any Group Company with any Government Entities are valid, binding on and enforceable against the relevant parties thereto, and no event has
occurred in which any of such contracts, agreements or other arrangements may be rescinded or terminated. 

  

	4.2	Intellectual Property 

 None of the Group Companies owns any intellectual property. Each
Group Company is the sole, unencumbered, legal and beneficial owner of or is otherwise duly authorised to use the intellectual property used in the conduct of its business. To the best knowledge of Vianet and the Group Companies, none of the Group
Companies has ever infringed upon any intellectual property owned or claimed by a third party. 
  

	5.	TAXATION 

  

	 	1.	The Group Companies shall have paid any and all Taxes that are due and payable prior to the closing of the acquisition of the corresponding Group Company. 

 

	 	2.	Each of the Group Companies has duly filed required Tax Returns and supplied other required information to the relevant Government Entity. All such returns, notices and information are complete and accurate in material
respects. No Group Company is or has been the subject of an on-going investigation by the relevant Tax authority and to the best knowledge of Vianet and the Group Companies, there are no facts which are likely
to result in such investigation. 

  

	 	3.	In relation to stamp duty assessable or payable in the PRC or elsewhere in the world, all documents the enforcement of which any Group Company may be interested have been duly stamped and no document belonging to any
Group Company now or at the JV Co 2 Closing which is subject to stamp duty is or will be unstamped or insufficiently stamped. 

  
 8 

	 	4.	No relief from stamp duty has been improperly obtained, nor has any event occurred as a result of which any such duty from which any Group Company has obtained relief, has become payable. 

 

	 	5.	All stamp duty, other taxes and governmental charges payable upon any transfer of shares in any Group Company before the JV Co 2 Closing has been duly paid. 

 

	 	6.	Neither the entering into of this Agreement nor the JV Co 2 Closing will affect or result in the withdrawal of any stamp duty relief granted to any Group Company on or before the JV Co 2 Closing. 

 

	6.	PROPERTIES 

  

	6.1	General 

 The Existing Projects constitute all the real property owned or leased (or that
will be owned or leased by any Group Company upon completion of the Restructuring) by all the Group Companies (collectively, the “Properties”). Such Existing Projects comprise all the land and premises owned, rented and
occupied or otherwise used in connection with the business of the Group Companies or in which any Group Company has any right or interest. The Group Companies do not own, lease or hold any real property other than the Properties and the registered
offices of the Group Companies. 
  

	6.2	Ownership of Properties 

  

	 	1.	The Group Companies are the legal and beneficial owners and/or users of, and are entitled to and has exclusive possession of and/or lease of, the Properties. The Project Companies have, or will by Completion have,
lawfully and validly obtained in its own name by way of grant method the State-owned land use right for those land required for business operation and own the buildings above such land free and clear of all claims, charges, mortgages, liens,
encumbrances, leases, tenancies, options, rights of pre-emption or rights of first refusal or other third party rights. 

  

	 	2.	The title to the land and to the buildings under construction thereon is properly constituted by and can be deduced from the land use right certificates and building ownership certificates (where applicable) which are,
or will by the JV Co 2 Closing be, in the possession and under the control of the Project Companies and each Project Company is, or will by Completion be, the registered and beneficial owner of the relevant Properties and there are no entries in any
relevant PRC government land bureaus or registries or agencies against the Properties which will on the JV Co 2 Closing be adverse to the title of the Project Companies and, to the best of the knowledge, information and belief of Vianet, no matter
exists which is capable of registration against the Properties. 

  

	 	3.	The Properties held by the Project Companies by way of leasehold are based on effective, subsisting and enforceable lease agreements. 

 

	 	4.	The Project Companies have in material aspects fully performed all contracts relating to the Properties and in material aspects complied with restrictions, provisions, conditions as required by Applicable Laws relating
to the Properties. 

  
 9 

	6.3	Projects 

  

	 	1.	The relevant Group Company has completed as required under the Applicable Law to obtain necessary certificates and permits for the development, construction, operation and management of the Projects including without
limitation the relevant NDRC approvals, MOFCOM approvals and/or filings (if applicable), land use rights certificates, building ownership rights certificates, land planning permits, construction planning permits, construction permits and other
necessary permits. Such certificates and permits have been or will be properly issued or granted to the relevant Group Company and are valid and subsisting. All the relevant Group Companies have paid or will pay to the relevant Government Entity in
charge of land administration in the PRC or other Government Entities all costs and expenses relating to the land acquisition such as land premium, relocation compensation fees and consultation fees. 

 

	 	2.	No Group Company has done or omitted to do anything which might lead to the foregoing certificates or permits (including without limitation land use rights certificates, building ownership rights certificates, land
planning permits, construction planning permits and construction permits over any Projects) being suspended, revoked or varied in any respect which is adverse to the interests of the Group Companies and its Subsidiaries in any respect. There are no
outstanding or pending disputes, notices, complaints or events which affect or may in the future affect the development, construction, operation, management and use of the Projects consistent with its present use. 

 

	 	3.	There is no covenant, restriction, burden or stipulation affecting any Projects in any material respect which is of an onerous or unusual nature or inconsistent with its present use. 

 

	 	4.	Except as set out in the Disclosure Schedule, the AIC registration of each of the Project Companies shall have been duly registered and filed to the effect that the business scope of each of the Project Companies shall
be sufficient to conduct its business. 

  

	 	5.	Except as set out in the Disclosure Schedule, there is no restriction on lease, sale or transfer of any Project or any part thereof. 

 

	 	6.	In respect of the Xi’an Project, notwithstanding the 

 dated 28 December 2015 between 21Vianet VNB and 

 or any other agreements related thereto, (a) 21Vianet VNB and the Xi’an Project Company may lease, transfer, encumber or otherwise dispose of any and all assets and equipment placed within the Xi’an
Project that are owned by 21Vianet VNB and the Xi’an Project Company without any restriction as long as such lease, transfer, encumbrance or disposal does no harm to the cooperation with 

; (b) any and all proceeds from the foregoing lease, transfer or disposal shall belong to 21Vianet VNB and/or the Xi’an Project Company and shall have nothing to deal with 

; and (c) 

 will not remove any equipment owned by it (the “Xi’an Telecom Owned Assets”) or suspend any utilization thereof on the ground of the foregoing lease, transfer or disposal.

  
 10 

	 	7.	In respect of the Foshan Project, notwithstanding the 

 dated 3 June 2013 between 

 and 

 or any other agreements related thereto, (a) 

 and the Foshan Project Company may lease, transfer, encumber or otherwise dispose of any and all assets and equipment placed within the Foshan Project that are owned by 

 and the Foshan Project Company without any restriction as long as such lease, transfer or disposal does no harm to the cooperation with 

; (b) any and all proceeds from the foregoing lease, transfer, encumbrance or disposal shall belong to 

 and/or the Foshan Project Company and shall have nothing to deal with 

; and (c) 

 shall not remove any equipment owned by it (the “Foshan Telecom Owned Assets”) or suspend any utilization thereof on the ground of the foregoing lease, transfer or disposal.

  

	7.	EMPLOYEES, PENSIONS AND INCENTIVES 

  

	 	(a)	As at the closing of the relevant transactions in respect of each Existing Project as provided herein, there is no employee of the Existing Project Company undertaking such Existing Project. 

 

	 	(b)	None of the Group Companies is a party to any profit sharing scheme, share option scheme, share incentive scheme or any other scheme under which any director, officer or employee of the company is entitled to
participate in the profit sharing of any of the Group Companies or has any rights in respect of any shares of any Group Companies, other than previous bonuses. 

  

	 	(c)	There are no material outstanding Liabilities on any of the Group Companies to pay severance compensation to any present or former employee. 

 

	 	(d)	Each Group Company has at all relevant times complied with, in all material aspects, its statutory obligations concerning retirement, social security (including without limitation pension insurance, medical insurance,
unemployment insurance, work-related injury insurance, maternity insurance and housing fund), health and safety at work of its employees. There are no outstanding claims made by any employee or third party in respect of any accident or injury. Each
Group Company has performed in all material aspects its contractual obligations and other legal duties concerning retirement, social security, health and safety at work of its employees. 

 

	 	(e)	There are not in existence any contracts of service with the employees of the Group Companies, nor any consultancy agreements with the Group Companies, which cannot be terminated by three (3) months’ notice or
less or (where not reduced to writing) by reasonable notice without giving rise to any claim for damages or compensation. 

  
 11 

	 	(f)	No notice to terminate the contract of employment of any employee of any Group Company (whether given by any such Group Company or by the employee) is pending, outstanding or threatened and no dispute is outstanding
between any Group Company and any of its current or former employees relating to their employment, its termination. 

  

	 	(g)	Each Group Company is not involved in nor has it received notice of any industrial or trade dispute or any dispute or negotiation with any trade union or association of trade unions or organisation or body of employees
and there is nothing likely to give rise to such a dispute or claim. 

  

	8.	EFFECTIVE CONTROL OVER PROJECTS 

 Vianet has effective control over the Projects. 

 

	9.	SOLVENCY AND NO WINDING-UP 

 No Order has been
made or Actions commenced or resolutions passed or steps taken by a Person for the winding-up or dissolution of or ending the corporate existence of any Group Company. To the knowledge of Vianet and the Group
Companies, no circumstance which may reasonably be expected to result in such Order, Actions, resolutions or steps has arisen. No liquidator, receiver, custodian, sequestrator, manager or anyone in a similar capacity has been appointed in respect of
the business or any asset of any Group Company. No circumstance which may reasonably be expected to result in such appointment has arisen. 
  

	10.	BROKER 

 No finder, broker, agent, financial advisor, or other intermediary has acted on
behalf of Vianet or any Group Company in connection with the negotiation or consummation of this Agreement or any of the Transactions contemplated hereby. All the negotiations, consummation, or performance of this Agreement or any of the
Transactions contemplated hereby will not give rise to any valid claim against the Investor or any Group Company for any brokerage or finder’s commission, fee, or similar compensation. 

  
 12 

 Exhibit 9.8 

Covenants of Vianet 
  

	1.	Vianet undertakes that it shall, and shall cause its respective Affiliates and the Group Companies to, at the cost of Vianet, complete all of the following matters, actions and transactions within the applicable time
limits respectively set forth below or such other time as mutually agreed upon by the Shareholders (but in no event later than the first Tranche Closing Date, except as provided otherwise):- 

 

	 	(a)	The Daxing Project Company and the Foshan Project Company shall duly obtain their respective social insurance registration certificates

 no later than Daxing Closing and Foshan Closing respectively; 

  

	 	(b)	Any and all of the items listed in the punch list mutually agreed upon by the Shareholders shall be completed; 

  

	 	(c)	Any and all of the consents and permissions required for the closing of the transactions contemplated hereby listed in the Disclosure Schedule shall be obtained; 

 

	 	(d)	The employment of any and all employees of JV Co 1, JV Co 2 and their respective Subsidiaries shall be terminated, and any and all of the individuals set forth in the list mutually agreed upon by the Shareholders shall
have entered into an employment contract in form and substance satisfactory to the Shareholders with JV Co 3 and/or its Subsidiaries (for the avoidance of doubt, the Parties agree that termination of the employment of the employees of each Project
Company selected by the Shareholders shall be completed upon each corresponding Tranche Closing Date, except for the first Tranche Closing Date); 

  

	 	(e)	The Daxing Project Company shall enter into: (i) with 21Vianet VNB and

 a binding supplementary agreement to the

 (with a lease commencement date of 1 March 2013) between 21Vianet VNB and

, which supplementary agreement shall be in form and substance satisfactory to the Shareholders, where the parties thereto agree that, among other things, the Daxing Project Company shall be entitled to a unilateral
right to renew the lease for up to twenty (20) years; and (ii) with

 a series of agreements in form and substance satisfactory to the Shareholders where the utilization right of the relevant infrastructure shall be transferred to the Daxing Project Company 

 

	 	(f)	Vianet undertakes that any and all rentals (together with other ancillary fees) for each year during the lease period (including the foregoing renewed lease period) in excess of that for the same year as mutually agreed
upon by the Shareholders shall be borne by Vianet; and 

  

	 	(g)	Before the execution of the Daxing Documents, Vianet shall provide the Investor with a true copy of the documents evidencing that the mortgage on the underlying land of the Daxing Project created on 9 February 2012
has been released and any and all valid and existing mortgages on the underlying land of the Daxing Project are created after 1 March 2013. 

  
 1 

	2.	Vianet undertakes that it shall, and shall cause its respective Affiliates and the Group Companies to, at the cost of Vianet, complete all of the following matters, actions and transactions as soon as practicable or
within such other time limit as mutually agreed upon by the Shareholders after the JV Co 2 Closing Date:- 

  

	 	(a)	Any and all of the registered capital of the Existing Project Companies that has not yet been paid shall be paid in accordance with the provisions of their respective articles of association and Applicable Laws;

  

	 	(b)	Vianet shall use Best Efforts to cause a separate land use right certificate in respect of the underlying land of the Xi’an Project be obtained by the Xi’an Project Company; 

 

	 	(c)	If any mortgage or transfer of the Xi’an Project or any part thereof requires any action from the holder of the underlying land use right of the Xi’an Project, Vianet shall use its Best Efforts to cause such
holder of such land use right to take such action in a timely manner; and 

  

	 	(d)	Vianet shall take any and all actions to ensure that the Group Companies shall be granted with all available tax incentives/subsidies to the extent permitted by Applicable Laws. 

  
 2 

 Exhibit 10.3 

Reserved Matters 
 With respect to any
Group Company:- 
  

	1.	establishment of a Group Company; any entry into of any joint venture, partnership or other similar arrangement, acquisition of any share or equity capital or other securities of any company or business entity, or entry
into a new investment project (including any funding thereof) with a total amount of such acquisition or new investment of RMB80,000,000 or more; Transfer of any shares or equity interests in a Group Company (other than those permitted in this
Agreement); 

  

	2.	acquisition or disposal of material assets by any Group Company:- 

  

	 	(a)	with a value above 10% of the total fixed assets owned by such Group Company, either individually in a single transaction or in aggregate in a series of connected transactions; or 

 

	 	(b)	outside of the Ordinary Course of Business; 

  

	3.	except as expressly described in detail and expressly approved in the then-prevailing approved Annual Business Plan and Budget, creation of any Encumbrance over any asset of any Group Company with a value of more than
10% of the total fixed assets owned by such Group Company (either individually or in a series of related transactions) or outside of the Ordinary Course of Business; or the incurring of any debt, guarantees or liabilities (including contingent
liabilities) by any Group Company in an amount of more than 10% of the total fixed assets owned by such Group Company (either individually or in a series of related transactions) or outside of the Ordinary Course or Business; 

 

	4.	an initial public offering of any and all of the shares, equity interests, security or equivalent of any of the Group Company, or any merger or division of any Group Company; 

 

	5.	creation, issue, purchase, redemption or other reorganisation of its share or registered capital, or the payment of any dividend or other distribution in specie that is not on a pro rata basis (unless
otherwise allowed under this Agreement), return or reduction of capital, or capitalization of reserves; 

  

	6.	except as expressly described in detail and expressly approved in the then-prevailing approved Annual Business Plan and Budget, incurring of any capital expenditure, investment or cash outflows by any Group Company
above 10% of the total fixed assets owned by such Group Company in any one transaction or in a series of related transactions; 

  

	7.	any change in the nature or material change in the scope of the business of any Group Company, or any amendment to the Group Company’s constitutional documents; 

 

	8.	any winding up, cessation or change of business, termination, liquidation, bankruptcy or similar proceeding of any Group Company (unless otherwise provided in this Agreement); 

  
 1 

	9.	any Related Party Transaction (except for those contemplated by and pursuant to a Master Service Agreement); 

  

	10.	any change in any Group Company’s accounting policies, accounting standards, auditors or financial year end; 

  

	11.	any form of material reorganization, including without limitation, amalgamation, reconstruction, merger or consolidation or scheme of arrangement or other business combination with or into any other Person;

  

	12.	provision of any guarantee for any third party, which is not expressly described in detail and expressly approved in the then-prevailing approved Annual Business Plan and Budget; 

 

	13.	any filing, withdrawing or settling of any litigation, arbitration or other legal proceeding with a subject amount of more than RMB1,000,000; 

 

	14.	except as otherwise provided in the foregoing, the entry into a contract or a series of related contracts (other than a Management Service Agreement or a Sub-Contracting Agreement) with a value of above RMB10,000,000,
that are not included in the then-prevailing approved Annual Business Plan and Budget; and 

  

	15.	entering into any agreement or making any commitment for any of the foregoing. 

  
 2 

 Exhibit 10.5 

Investor’s Information and Inspection Rights 
  

	1.	The Investor shall be entitled to the following information rights:- 

  

	1.1	As soon as practicable, but in any event within ninety (90) days after the end of each fiscal year of JV Cos, audited annual consolidated financial statements for the Group Companies for such fiscal year prepared
in accordance with US GAAP, audited and certified by one of the Big Four Accounting Firms duly appointed by the board of JV Cos to serve as JV Cos’ auditors. 

 

	1.2	As soon as practicable, but in any event within sixty (60) days after the end of each quarter, an unaudited report, which shall include without limitation, the consolidated income statements and statements of cash
flows for such quarter, balance sheets, lists of debts, bank loans and other borrowings as well as capital expenditures for the Group Companies, and the respective quarterly balance sheets, income statements and statements of cash flows for each of
the Group Companies for such fiscal quarter. 

  

	1.3	As soon as practicable, but in any event within twenty (20) Business Days after the end of each month, an unaudited report, which shall include without limitation, the consolidated income statements and statements
of cash flows for such month, balance sheets, lists of debts, bank loans and other borrowings as well as capital expenditures for the Group Companies, and the respective monthly balance sheets, income statements and statements of cash flows for each
of the Group Companies for such fiscal month. 

  

	1.4	Copies of all other documents or other information sent to any Person in such Person’s capacity as a shareholder of JV Cos, and notice of any material liabilities incurred by or threatened against, and any material
lawsuit or other material claim filed or threatened against, any Group Company. 

  

	1.5	Copies of any reports filed by the Group Companies with any relevant regulatory authority or governmental agency. 

  

	1.6	Any other document, material or information reasonably requested by the Investor. 

  

	2.	The Investor shall be entitled to the following inspection rights:- 

  

	2.1	The right to inspect facilities, records and books of the Group Companies and their direct or indirect Subsidiaries and to make extracts and copies therefrom, at any time during regular working hours on reasonable prior
notice to the applicable Group Company respectively; and 

  

	2.2	The right to discuss the business, operations and conditions of the Group Companies and their direct or indirect Subsidiaries with their respective directors, officers, employees, accountants, legal counsel and
investment bankers. 

  
 1 

 Exhibit 11.7 

Form of Deed of Adherence 
 THIS
DEED is made on [date] 
 by [name] (the “New Shareholder”). 

WHEREAS: 
  

	(A)	By a transfer dated [date], [name of transferring Shareholder] transferred to the New Shareholder [number] Class [*] shares with a par value of US$0.00001 each in the capital of [name of JV Co] (the
“Company”). 

  

	(B)	This Deed is entered into in compliance with the terms of an investment agreement dated 5 March 2017 made between the 21Vianet Group, Inc., 21Vianet DRP Investment Holdings Limited and Marble Stone Holdings Limited
as such agreement shall have been or may be amended, supplemented or novated from time to time (the “Investment Agreement”). 

THIS DEED WITNESSES as follows: 
  

	1.	The New Shareholder undertakes to adhere to and be bound by the provisions of the Investment Agreement, and to perform the obligations imposed by the Investment Agreement which are to be performed on or after the date
of this Deed, in all respects as if the New Shareholder were a Party to the Investment Agreement and named therein as a shareholder of the Company. 

  

	2.	This Deed is made for the benefit of (a) the original Parties to the Investment Agreement and (b) any other Person or Persons who after the date of the Investment Agreement (and whether or not prior to or
after the date of this Deed) adheres to the Investment Agreement. 

  

	3.	The address of the New Shareholder for the purposes of the Investment Agreement is as follows: 

  

			
	 If to the New Shareholder:-
	  	 with a copy to:-

		
	Address: [*]	  	Address: [*]
		
	Attention: [*]	  	Attention: [*]
		
	Fax: [*]	  	Fax: [*]
		
	Email: [*]	  	Email: [*]

  

	4.	This Deed shall be governed by and construed in accordance with the laws of Hong Kong without regard to the conflicts of law principles thereof. 

  
 1 

 IN WITNESS of which this Deed has been executed and delivered by the New Shareholder on the date which first
appears above. 
  

					
	EXECUTED AS A DEED by	 	)	 	  

			
	[New Shareholder]:	 	)	 	Duly Authorised Signatory

  

			
	in the presence of:
	
	  

	Signature of Witness
		
	Name:	 	  

		
	Address:	 	  

 Exhibit 12.3(c) 

Appraisal Principles 
 In determining the
fair market value pursuant to this Agreement, and the Appraiser shall:- 
  

	(1)	determine the enterprise value of such Group Company, which shall be calculated on a going concern basis for a private company of a comparable size and in a comparable industry by applying a comparable company multiple
analysis to such Group Company’s EBITDA based on its last audited accounts or such other index customarily applied in market practice, given consideration of any real estate assets and other assets of such Group Company as well as any fund
management, project management or other business of such Group Company. 

  

	(2)	in calculating the equity value of a Group Company, deduct any debt and other liability as at the relevant date and add cash, cash equivalent and other asset as at the relevant date. 

 

	(3)	specifically, when determining the enterprise value of a Group Company pursuant to the foregoing, (a) value a Group Company’s real estate assets, other tangible assets and related liabilities, such valuation
to reflect a sale between a willing seller and a willing purchaser, on an arm’s length basis and without undue pressure on either the seller or purchaser to close the transaction; (b) adjust a Group Company’s non-real estate tangible assets for any actual or probable impairments; (c) exclude any deferred Tax liabilities caused by differences in the appraised value and the historic Tax basis of the assets;
(d) with respect to any debt or liability borne by a Group Company, adopt a calculation method that is consistent with the methodology of how similar liabilities have historically been paid or settled and accepted by the relevant counterparty;
and (e) subtract any transaction costs and Taxes incurred or likely to be incurred, from the transfer of a Group Company to Vianet or its relevant Affiliate. 

  
 1 

 Exhibit 14.3 

Vianet’s Specific Indemnity Matters 
  

	1.	Any material violation of Applicable Laws by any Group Company (including without limitation, those in connection with utilization of the land use right in respect of any Project and construction of any Project,
environmental protection, energy saving, employment) prior to the JV Co 2 Closing Date, whether or not such violation is found or accused after the JV Co 2 Closing Date; 

 

	2.	Any breach by any Group Company of any Material Contract (including without limitation, any land use right grant contract with any Government Entity) prior to the JV Co 2 Closing Date, whether or not such breach is
found or accused after the JV Co 2 Closing Date; 

  

	3.	Any delay in the commencement or completion of the construction of any Existing Project prior to the JV Co 2 Closing Date, whether or not such delay is found or accused after the JV Co 2 Closing Date; 

 

	4.	Any utilization of any Existing Project or its underlying land use right in violation of the relevant land use right grant contract or other similar documents; 

 

	5.	Any failure to complete any environmental impact assessment or energy saving assessment in respect of any Existing Project (excluding those arising due to change of Applicable Laws) prior to the JV Co 2 Closing Date,
whether or not such failure is found or accused after the JV Co 2 Closing Date; 

  

	6.	Any failure of any Group Company to duly perform any construction-related contracts in respect of any Existing Project in any material aspect prior to the JV Co 2 Closing Date, whether or not such failure is found or
accused after the JV Co 2 Closing Date; 

  

	7.	Any ceasing to have effect or becoming null and void of any leases in respect of any Existing Project due to any defect or another reason that exists prior to the JV Co 2 Closing Date (except for those conducted
pursuant to the Restructuring and Transaction Plan); 

  

	8.	Any penalty imposed by any Government Entity against any Group Company due to a reason that exists prior to the JV Co 2 Closing Date; 

 

	9.	Any cost for acquiring the Xi’an Telecom Owned Assets and/or the Foshan Telecom Owned Assets or replacement thereof, and any cost for settling any dispute with the owner of the Xi’an Telecom Owned Assets
and/or the Foshan Telecom Owned Assets; 

  

	10.	Any Liability incurred by any Group Company or the Investor in connection with the Restructuring due to Vianet’s breach of this Agreement or other Transaction Documents; 

 

	11.	Any Tax Liability or reduction of Tax basis of the Projects or the Group Companies arising from or in connection with the Restructuring or the transaction steps provided in Section 4 (Investment Commitment);

  

	12.	 Any Liability arising from or otherwise in connection with the issues set forth in the punch list in Section 1(b)
of Exhibit 9.8; 

  
 1 

	13.	Notwithstanding anything to the contrary, any Liability arising from the issue set forth in item 7 of Project Company 1 of Subsection 2 of Section 2

 and item 4 of Project Company 2 of Subsection 2 of Section 2

 in the Disclosure Schedule under the condition that problems caused by such issue fail to be solved by the Shareholders using commercially best efforts within thirty (30) days in a way satisfactory to the Investor;
and 

  

	14.	Any Liability imposed by any Government Entity on the Investor or any Group Company due to any failure to obtain any approval by, registration or filing with any Government Entity in respect of the Transactions
contemplated hereby, and any Liability arising from or in connection with any unwinding of the Transactions contemplated hereby required by any Government Entity. 

 Exhibit 16.7 

Address of Notices 
  

			
	 If to VNET or Vianet:-
	  	 with a copy to:-

		
	Address: M5, 1 Jiuxianqiao East Road, Chaoyang District, Beijing, China	  	Address: M5, 1 Jiuxianqiao East Road, Chaoyang District, Beijing, China
		
	Attention: Terry Wang	  	Attention: Eric Chu / He Qiongxiu
		
	Fax: + 86 10 8456 4234	  	Fax: + 86 10 8456 4234
		
	Email: terrywang@21vianet.com	  	Email: eric.chu@21vianet.com
		
		  	     he.qiongxiu@21vianet.com

		
	 If to WP:-
	  	 with a copy to:-

		
	Address: Marble Stone Holdings Limited c/o Warburg Pincus Asia LLC, Suite 6703, Two International Finance Center, 8 Finance Street, Hong Kong	  	Address: Marble Stone Holdings Limited c/o Warburg Pincus Asia LLC, Suite 6703, Two International Finance Center, 8 Finance Street, Hong Kong
		
	Attention: Legal Counsel / Jun Liu	  	Attention: Ellen Ng / Jeffrey Hu
		
	Fax: +852 2521 3869	  	Fax: +852 2521 3869
		
	Email: jun.liu@warburgpincus.com	  	Email: ellen.ng@warburgpincus.com
		
		  	     jeffrey.hu@warburgpincus.com

  
 1 

 Schedule 2.1 

Existing Structure 
  

 
 “21Vianet VNC” means 21 ViaNet Data Center Co., Ltd.

, and“21Vianet VNS” means Beijing Yiyun Network Technology Co., Ltd.

.. 

  
 1 

 Schedule A 

List of Projects and Project Companies 
  

					
	 Project Name
	  	 Location
	  	 Existing Project

Company(ies)

			
	Daxing Project	  	

	  	

 (the “Daxing Project Company”)
			
	Yizhuang Project	  	

	  	

 (the “Yizhuang Project Company”)
			
	Xi’an Project	  	

	  	 

 (the “Xi’an Project Company”)
  

21ViaNet@Xian Holding Limited

			
	Foshan Project	  	

	  	 

 (the “Foshan Project Company”)
  

Asia Quality Limited

  
 Dynamic Ruby Limited

 Schedule B 

Form of Closing Certificate 

Closing Certificate 
 THIS
CLOSING CERTIFICATE (this “Certificate”) is executed and delivered to the Investor pursuant to and in connection with the Investment Agreement entered into by VNET, Vianet and WP on 5 March 2017 (the
“Investment Agreement”). 
 The undersigned, pursuant to the provisions of Exhibit 4.2(c)(i) to the
Investment Agreement, hereby certify that as at              20    , any and all of the JV Co 2 Closing Conditions, including without limitation to the following, have
been satisfied:- 
  

									
	 Item
	  	 Conditions Precedent
	  	 Status
	  	 Supporting Documents
	  	 Notes

					
		  	[JV Co 2 Closing Conditions to be copied here]	  	[Satisfied/Not satisfied and pending waiver by the Investor]	  	[See Appendix [    ]]	  	
					
		  		  		  		  	

 Unless otherwise defined in this Certificate, capitalized terms used in this Certificate shall have the meaning ascribed
thereto in the Investment Agreement. 
  

			
	Vianet
		
	By:	 	  

		
	Name:	 	[*]

 Appendix [to be added] 

 Schedule C 

Annual Business Plan and Budget 
 The
Annual Business Plan and Budget shall contain the following information:- 
  

	1.	Detailed forecast / financial budget for the next year (with material line items broken out); 

  

	2.	Line item variance analysis between historical accounts and budget (i.e., explanations on material differences); 

  

	3.	Current and forecasted occupancy and rental rates; 

  

	4.	Summary of operations for the preceding twelve (12) months (including without limitation performance of the business, key challenges, the identified areas for improvement, assessment of the performance of Key
Management, etc.); 

  

	5.	Market analysis (including without limitation analysis on current tenants, competition or competitors, market strength or weakness, etc.); 

 

	6.	Execution plan for the next twelve (12) months (including without limitation focus, responsible personnel, etc.); 

  

	7.	Current status of financing and any planned re-financing of each asset or entity for the next twelve (12) months; 

 

	8.	Any plans with respect to material asset acquisitions, capital expenditures, investment or cash outflows for the next twelve (12) months; 

 

	9.	Comparison of current development status to the original development plans (if applicable) and a detailed variance analysis; 

  

	10.	An comprehensive update of the development plans (if applicable) to reflect the current status of such development; 

  

	11.	An update on and schedule for undertaking any new Projects; and 

  

	12.	Other details/items as requested by the board of JV Cos or the board of directors of any other Group Company.

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