Holding(s) in Company

RNS Number:8676J
MTL Instruments Group PLC
13 December 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:

    The MTL Instruments Group plc


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

    An acquisition or disposal of voting rights: Yes

    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): No


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

    AXA SA, 25 Avenue Matignon 75008 Paris, and its group of companies.


4.  Full name of shareholder(s) (if different from 3):

    See paragraph 9 below.


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

    11 December 2007


6.  Date on which issuer notified:

    12 December 2007


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

    Above 15%


8.  Notified details:

A:  Voting rights attached to shares

Class/type of shares if possible         Situation previous to the
using the ISIN CODE                       triggering transaction

                                     Number of     Number of Voting
                                     Shares        Rights
Ordinary Shares                      2,823,257     2,823,257

GB0005507768

Resulting situation after the triggering transaction

Class/type of shares   Number of     Number of Voting        % of Voting Rights
if possible using      Shares        Rights
the ISIN CODE
                                     Direct     Indirect     Direct    Indirect

Ordinary Shares        2,963,257     20,000     2,943,257    0.10      15.13

GB0005507768


B:  Financial Instruments

Resulting situation after the triggering transaction

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

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


Total (A+B)

Number of Voting       % of Voting
Rights                 Rights

2,963,257              15.23


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

    AXA Rosenberg 570,287
    Sun Life Pensions Management Ltd 20,000
    AXA Framlington Xerox Final Salary Pension Scheme 177,000
    AXA Framlington Islington Group Pension Scheme 107,500
    AXA Framlington SEI Equity 175,000
    AXA Framlington Innovative Growth 1,200,000
    AXA Framlington UK Smaller Companies 400,000
    AXA Framlington BAe Systems Pensions Fund 134,720
    AXA Framlington onshore private clients 126,750

    Total holding 2,963,257


Proxy Voting:


10. Name of the proxy holder:

    N/A


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

    N/A


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

    N/A


13. Additional information:

    None


14. Contact name:

    Bill Greenhalgh, Finance Director, The MTL Instruments Group plc


15. Contact telephone number:

    01582 407534



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