Holding(s) in Company

Weir Group PLC
25 March 2008


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 Global Investors

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

Barclays Global Fund Advisors
Barclays Global Investors Ltd
Barclays Global Investors, N.A.

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

20 March 2008

6. Date on which issuer notified:

25 March 2008

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

4% 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                                 8,467,949            8,467,949

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                   8,014,955      0    8,014,955     0.00%    3.83%


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

              8,014,955                                3.83%


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

Barclays Global Fund Advisors
Barclays Global Investors Ltd
Barclays Global Investors, N.A.

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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