Holding(s) in Company

TT electronics PLC
11 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 obligation                      FMR Corp

4. Full name of shareholder(s) (if
   different from 3.)                           See attached schedule

5. Date of the transaction (and date on
   which the threshold is crossed or
   reached if different)                        8 May 2007

6. Date on which issuer notified                10 May 2007

7. Threshold(s) that is/are crossed or 
   reached:                                     5%


8: Notified Details

A: Voting rights attached to shares
Class/type       Situation previous to the   Resulting situation after the triggering
of shares        Triggering transaction      transaction
If possible
using the        Number of    Number of      Number     Number of Voting      % of Voting
ISIN CODE        Shares       Voting         of         Rights                Rights
                              Rights         Shares
ISIN                                         Direct     Direct   Indirect     Direct   Indirect
GB0008711763     7,800,000    7,800,000                          7,700,000             4.97%


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
7,700,000                                    4.97%


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

   See attached schedule


Proxy Voting:

10. Name of the proxy holder:                                        FMR Corp

11. Number of voting rights proxy holder will cease to hold:         100,000

12. Date on which proxy holder will cease to hold voting rights:     8 May 2007


13. Additional information:

14. Contact Name                         Teresa Garry

15. Contact:                             [e-mail]


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

W J Sharp
Group Company Secretary
TT electronics plc

Date of notification: 11 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)                                     FMR Corp

Contact address (registered office for legal
entities)                                     82 Devonshire Street, Boston,
                                              MA, 02109 USA

Phone number                                  01737 837092

Other useful information (at least legal
representative for legal persons)             Company Secretary


B: Identity of the notifier, if applicable

Full name                                     Fidelity Investments International

Contact address                               Windmill Court XTW2B, Millfield
                                              Lane, Lower Kingswood, Tadworth,
                                              Surrey KT20 6RB

Phone number                                  01737 837092

Other useful information (e.g. functional
relationship with the person or legal entity       
subject to the notification obligation)       Authorised to make this filing
                                              under power of attorney

C: Additional information




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