Holding(s) in Company

TT electronics PLC
26 March 2007



TR-1: Notification of Major Interests in Shares

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

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

Other (please specify): Revised due to DTR rules - see Section 13

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

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

5. Date of the transaction (and date on           Revised due to DTR rules
which the threshold is crossed or
reached if different)

6. Date on which issuer notified                       23 March 2007

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

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
                                       Direct Direct Indirect     Direct Indirect


GB0008711763  9,500,000    9,500,000                  9,500,000            6.13%


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


     9,500,000                                6.13%


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/acquire to hold:      N/A


12. Date on which proxy holder will cease/acquire to hold voting          N/A
rights:


13.          As discussed with the FSA, prior to the implementation of the EU
Additional   Transparency Directive, we aggregated the interests in shares of
information: FMR Corp (FMR) and Fidelity International Limited (FIL) together
             for the purposes of shareholder reporting. According to the new DTR
             rules we are now reporting the indirect holdings of FMR and FIL
             separately. A separate notification is being submitted for FIL.
             Please note these holdings are correct as of close of business 22
             March 2007

14. Contact Name                   Sophie Hughes

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: 23 March 2007


FMR

Issuer name:                                                TT ELECTRONICS PLC
                                                            --------------------

Current ownership
percentage:                                                         6.13%

Total shares held:                                             9,500,000

Issued share capital:                                        154,798,103

                                                             SHARES HELD            NOMINEE          MANAGEMENT COMPANY
-----------------------------                               -------------  ------------------------      ----------

FMR Corp is the parent
holding company of
Fidelity Management & Research                                 9,500,000   BROWN BROTHERS HARRIMAN        FMRCO
Company (FMRCO), investment                                                AND CO
manager for US mutual funds, and Fidelity Management Trust
Company (FMTC), a US state chartered bank which acts as
a trustee or investment manager of various pension and
trust accounts.



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