Trifast Regulatory News (TRI)

For filings with the FSA include the annex

For filings with issuer exclude the annex

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii

Trifast Plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

X

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

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

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

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.):iv

N/A

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

9th December, 2010

6. Date on which issuer notified:

10th December, 2010

7. Threshold(s) that is/are crossed orreached: vi, vii

From 4% to 3%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

0888392

GB0008883927

3,564,175

3,564,175

N/A

N/A

3,316,432

N/A

3.89%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

3,316,432

3.89%

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

BT Pension Scheme Trustees Limited, as trustee of the BT Pension Scheme ("BTPS") is the parent undertaking of Britel Fund Nominees Limited and Britel Fund Trustees Limited, which is the parent undertaking of Hermes Fund Managers Limited ("HFML"). HFML is the parent undertaking of:

1. Hermes Investment Management Limited ("HIML") (voting rights: 3.89%)**

** This notification is also being made in respect of HIML, which is an indirect holder of shares for the purpose of DTR 5.2.1(h) and has an individual notification obligation under DTR 5.1.5.

Please see Section 13 for further information.

Proxy Voting:

10. Name of the proxy holder:

See Comment in Section 13.

11. Number of voting rights proxy holder will ceaseto hold:

See Comment in Section 13.

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

See Comment in Section 13.

13. Additional information:

HIML hold the voting rights under a standing proxy contained in investment management agreements with various underying clients (which may include BTPS) for the purposes of DTR 5.2.1(h).

All voting rights held on behalf of the above entities are aggregated for the purposes of DTR 5.2.1(e).

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

14. Contact name:

Fowzia Hussain (f.hussain@hermes.co.uk)

15. Contact telephone number:

020 7680 8017

Note: Annex should only be submitted to the FSA not the issuer

Annex: Notification of major interests in share

A: Identity of the persons or legal entity subject to the notification obligation

Full name

(including legal form of legal entities)

BT Pension Scheme Trustees Limited

Contact address

(registered office for legal entities)

1 Portsoken Street, London E1 8HZ

Phone number & email

020 7702 0888

Other useful information

(at least legal representative for legal persons)

BT Pension Scheme Trustees Limited is the parent undertaking of the group of companies subject to the notification obligation as indirect holders of voting rights for the purpose of DTR 5.2.1(h) and 5.2.1(e).

B: Identity of the notifier, if applicable

Full name

Hermes Fund Managers Limited as agent for BT Pension Scheme Trustees Limited

Contact address

1 Portsoken Street, London E1 8HZ

Phone number & email

020 7680 2177

Other useful information

(e.g. functional relationship with the person or legal entity subject to the notification obligation)

Hermes Fund Managers Limited acts as the authorised administration agent on behalf of BT Pension Scheme Trustees Limited

C: Additional information

Please contact Fowzia Hussain on the above number for further information.

For notes on how to complete form TR-1 please see the FSA website.