Holding(s) in Company

Weir Group PLC
29 October 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 Weir 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): Initial notification due to change of threshold for
non-material interest (No)

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

4. Full name of shareholder(s) (if different from 3.):
Barclays Bank (Suisse) SA
Barclays Bank PLC
Barclays Bank Trust Company Ltd
Barclays Capital Inc
Barclays Capital Securities Ltd
Barclays Global Investors Canada Ltd
Barclays Global Investors Japan Ltd
Barclays Global Investors Ltd
Barclays Life Assurance Co Ltd
Barclays Private Bank and Trust Ltd
Barclays Private Bank Ltd
Barclays Stockbrokers Ltd
Gerrard Investment Management Ltd
Walbrook Trustees (Jersey) Ltd

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

6. Date on which issuer notified:
29 October 2007

7. Threshold(s) that is/are crossed or reached:
5% to 3%

8. Notified details:

A: Voting rights attached to shares

Situation previous to the triggering transaction

Class/type of shares if possible using the   Number of      Number of voting
ISIN CODE                                    shares         Rights

GB0009465807                                 10,504,775     10,504,775


Resulting situation after the triggering transaction

Class/type of shares if        Number of    Number of voting    % of voting
possible using the ISIN CODE   shares       rights              rights

                                            Direct Indirect     Direct  Indirect

GB0009465807                   7,709,162    0      7,709,162    0.00%   3.69%


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



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


Total (A+B)
Number of voting rights                  % of voting rights

7,709,162                                3.69%


9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:
Barclays Bank (Suisse) SA
Barclays Bank PLC
Barclays Bank Trust Company Ltd
Barclays Capital Inc
Barclays Capital Securities Ltd
Barclays Global Investors Canada Ltd
Barclays Global Investors Japan Ltd
Barclays Global Investors Ltd
Barclays Life Assurance Co Ltd
Barclays Private Bank and Trust Ltd
Barclays Private Bank Ltd
Barclays Stockbrokers Ltd
Gerrard Investment Management Ltd
Walbrook Trustees (Jersey) Ltd



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:
N/A

14. Contact name:
Geoff Smith

15. Contact telephone number:
0207 116 2913




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