NNG Newport Network

RNS Number:9026C
Newport Networks Group PLC
28 August 2007


                TR-l: 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):

     Newport Networks Group PLC ordinary shares of 0.1 pence each

2.   Reason for the notification: (please state Yes/No):

     An acquisition or disposal of voting rights

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

     GAM International Management Limited

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

     N/A

5.   Date of the transaction and date on which the threshold is crossed or reached:

     22/08/2007

6.   Date on which issuer notified:

     24/08/2007

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

     3%

8.   Notified details:


A: Voting rights attached to shares

Class /type  Situation Previous to Resulting situation after the Triggering Transaction
of shares    the                   vii
             TriggeringTransaction
If possible  Number of Number of   Number of Shares    Number of voting    % of voting
using the    Shares    voting                          Rights iv           Rights
ISIN CODE              Rightsviii
                                       Direct Indirect   Direct x Indirect Direct Indirect
                                                                        xi

GB00B00ST620 8,162,540 8,162,540   28,162,540        - 28,162,540        -  7.68%


B: Financial Instruments


Resulting situation after the triggering transactionxii

Type of      Expiration  Exercise   Number of voting         % of voting
financial    Datexiii    Conversion Rights that may be       rights
instrument               Period     Acquired if the
                         / Date xiv instrument is exercised/
                                    converted.

n/a



Total (A+B)

Number of voting       % of voting rights
rights

28,162,540             7.68%


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

     GAM International Management Limited is the discretionart investment 
     manager for the following:

+-----------------------------------+-----------------------------------+
|Period of interest                 |22/08/07 to 24/08/07               |
+-----------------------------------+-----------------------------------+
|Security                           |Newport Networks Group Ordinary GBP|
|                                   |0.1                                |
+-----------------------------------+-----------------------------------+
|ISIN                               |GB00800ST620                       |
+-----------------------------------+-----------------------------------+
|SEDOL                              |B00ST62                            |
+-----------------------------------+-----------------------------------+
|Uptix Code                         |B00ST62                            |
+-----------------------------------+-----------------------------------+
|Number of shares in issue          |366,582,833                        |
+-----------------------------------+-----------------------------------+

+---------------------------+--------------+--------------+--------------+
|Fund Name                  |Last Trade    |Nominal       |% of Issued   |
|                           |Date          |              |              |
+---------------------------+--------------+--------------+--------------+
|GAM Star UK Dynamic Equity |22/08/07      |10,162,540    |2.772         |
|Investments                |              |              |              |
+---------------------------+--------------+--------------+--------------+
|GAM UK Equity Hedge        |22/08/07      |18,000,000    |4.910         |
|Investments Inc.           |              |              |              |
+---------------------------+--------------+--------------+--------------+


Proxy Voting:


10.   Name of the proxy holder:

      Institutional Shareholder Services

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:

      Not applicable

13.   Additional information

      N/A

14.   Contact name:

      Leonard Cordaro

15.   Contact telephone number:

      +44 (0)20 7917 2356


END


28 August 2007






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

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