Holding(s) in Company

TT electronics PLC
01 May 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:    TT Electronics Plc

2. Reason for the notification                          An acquisition or
                                                        disposal of voting
                                                        rights

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

4. Full name of shareholder(s) (if different from 3.):  Barclays Bank PLC
                                                        Barclays Capital Securities Ltd
                                                        Barclays Global Investors Ltd
                                                        Barclays Life Assurance Co Ltd
                                                        Barclays Stockbrokers Ltd
                                                        Gerrard Ltd

5. Date of the transaction and date on which the 
threshold is crossed or reached:                        30-Apr-07

6. Date on which issuer notified:                       01-May-07

7. Threshold(s) that is/are crossed or reached:         8% to 10%


8. Notified details:

A: Voting rights attached to shares
Class/type      Situation previous to the      Resulting situation after the triggering
of shares if    Triggering transaction         transaction
possible        Number of     Number of        Number of     Number of voting     % of voting
using the       Shares        Voting Rights    shares        rights               rights
ISIN CODE                                                    Direct Indirect      Direct  Indirect

GB0008711763    13,640,414    13,640,414       16,360,939    0      16,360,939    0.00    10.57

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


Total (A+B)
Number of voting rights                      % of voting rights
16,360,939                                   10.57


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

Barclays Bank PLC
Barclays Capital Securities Ltd
Barclays Global Investors Ltd
Barclays Life Assurance Co Ltd
Barclays Stockbrokers Ltd
Gerrard Ltd


Proxy Voting:
10. Name of the proxy holder:
11. Number of voting rights proxy holder will cease to hold:
12. Date on which proxy holder will cease to hold voting rights:


13. Additional information:
14. Contact name:                             Geoff Smith
15. Contact telephone number:                 020 7116 2913


Name of authorised official of the issuer responsible for making this
notification:

WJ Sharp
Group Company Secretary
TT electronics plc

Date of Notification: 1 May 2007


               Annex to Notification of Major Interests In Shares

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

Full name (including legal form for legal entities)            Barclays PLC
Contact address (registered office for legal entities)         1 Churchill Place
                                                               London, E14 5HP

Phone number                                                   020 7116 2913


B: Identity of the notifier, if applicable

Full name         Geoff Smith
Contact address   BARCLAYS PLC
                  1 Churchill Place
                  London, E14 5HP

Phone number      020 7116 2913


                    



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