Vianet Group PLC - Holding(s) in Company

RNS Number:8328L
Vianet Group PLC
15 January 2008

TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached (ii):

Vianet Group plc

2. Reason for the notification (please place an X inside the appropriate bracket
/s):

An acquisition or disposal of voting rights: ( )

An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached: ( )

An event changing the breakdown of voting rights: ( X )

Other (please specify) : ( )

3. Full name of person(s) subject to the notification obligation (iii):

Singer & Friedlander AIM3

Venture Capital Trust

4. Full name of shareholder(s) (if different from 3.) (iv):

Sinjul Nominees

5. Date of the transaction (and date on which the threshold is crossed or
reached if different) (v):

10th January 2008

6. Date on which issuer notified:

11th January 2008

7. Threshold(s) that is/are crossed or reached:

Over 8%

8. Notified details:

N/A

A: Voting rights attached to shares

Class/type of shares if possible Situation previous to the Triggering transaction (vi)
using the ISIN CODE
Number of shares Number of voting Rights (viii)
GB0001885200 20,760,250

Resulting situation after the triggering transaction (vii)

Class/type of shares if Number of shares Number of voting rights (ix) % of voting rights
possible using the ISIN CODE
Direct Direct (x) Indirect (xi) Direct Indirect

GB0001885200 20,760,250 8.479%
of class

B: Financial Instruments

Resulting situation after the triggering transaction (xii)

Type of Expiration Date Exercise/Conversion Number of voting rights % of voting rights
financial (xiii) Period/ Date (xiv) that may be acquired if the
instrument instrument is exercised/
converted.

N/A

Total (A+B)
Number of voting rights % of voting rights

20,760,250 8.479% of class

9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable (xv):

N/A

Proxy Voting:

10. Name of the proxy holder:

N/A

11. Number of voting rights proxy holder will cease to hold:

N/A

12. Date on which proxy holder will cease to hold voting rights:

N/A

13. Additional information:

N/A

14. Contact name:

Alastair Kerr

15. Contact telephone number:

01383 748000

This information is provided by RNS
The company news service from the London Stock Exchange
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