RNS Number:5893S
Trifast PLC
08 March 2007

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

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

    Trifast Plc


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

    An acquisition or disposal of voting rights: No

    An acquisition or disposal of financial instruments which may result in the
    acquisition of shares already issued to which voting rights are attached: No

    An event changing the breakdown of voting rights: No

    Other (please specify): Re-disclosure following implementation of the
    Transparency Directive


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

    BT Pension Scheme Trustees Limited as trustee of the BT Pension Scheme. See
    section 9 for further information.


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 if different) :

    Position held on 20 January 2007


6.  Date on which issuer notified:

    7 March 2007


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

    14%


8.  Notified details:

A:  Voting rights attached to shares

Class/type of shares if possible using    Situation previous to the Triggering
the ISIN CODE                                       transaction
Ordinary Shares                           Number of       Number of voting
                                          shares          Rights

GB0008883927                              12,309,800      12,309,800


Resulting situation after the triggering transaction

Class/type of shares if    Number of    Number of voting        % of voting
possible using the ISIN    shares       rights                  rights
CODE

Ordinary Shares            Direct       Direct     Indirect     Direct  Indirect
GB0008883927               7,328,675    7,328,675  4,981,125    8.684%    5.902%


B:  Financial Instruments

Resulting situation after the triggering transaction

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

N/A         N/A        N/A           N/A                                N/A

Total (A B)

Number of voting rights              % of voting rights
12,309,800                           14.586%


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

    BT Pension Scheme Trustees Limited is the parent undertaking of Britel Fund
    Trustees Limited, which is the parent undertaking of Hermes Pensions 
    Management Limited. Hermes Pensions Management Limited is the parent 
    undertaking of Hermes Investment Management Limited (voting rights held in 
    this issuer: 14.586%).

    See section 13 for further information.

Proxy Voting:

10. Name of the proxy holder:

    See section 13


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

    See section 13


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

    See section 13


13. Additional information:

    Hermes Investment Management Limited hold the voting rights under a standing
    proxy contained in investment management agreements with various underlying
    clients, which includes all the shares owned directly by BT Pension Scheme.

    All voting rights held on behalf of the above entities are aggregated for 
    the purposes of DTR 5.2.1(a) and disclosed pursuant to DTR 5.1.5.

    This disclosure is made by BT Pension Scheme Trustees Limited, which is the
    ultimate parent undertaking for the purposes of DTR 5.2.1(e).


14. Contact name:

    Mark Belton, Company Secretary, Trifast PLC


15. Contact telephone number:

    01825 747366



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