Holding(s) in Company

Weir Group PLC
19 March 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): (No)


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

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


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


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

15 March 2007


6. Date on which issuer notified:

19 March 2007


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

5%


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                                10,977,775           10,977,775



Resulting situation after the triggering transaction

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

                             Direct     Direct     Indirect     Direct  Indirect

GB0009465807                 509,969    509,969    9,959,846    0.25    4.79


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

10,469,815                           5.04%


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

Name of Company / Fund                             Number of         % of issues
                                                      shares       share capital
--------------------------------------------------------------------------------
AXA Finance                                          991,730             0.47727

  Indirect
Sun Life Pensions Management Ltd                      46,830             0.02254
  Direct
Sun Life Unit Assurance Ltd                           38,761             0.01865
FTSE All Share Tracker
  Direct
Sun Life Pensions Management                         171,283             0.08243
FTSE All Share Tracker
  Direct
AXA Framlington                                      125,000             0.06016
Trustees for Roman Catholics
  Indirect
AXA Framlington                                       70,000             0.03369
Islington Group Pension Scheme
  Indirect
AXA Framlington                                       75,000             0.03609
London Scottish Pension Fund
  Indirect
AXA Framlington                                      252,000             0.12128
St James Place Exempt (Pens) Fund
  Indirect
AXA Framlington                                      282,000             0.13571
St James Place Net (Life) Fund
  Indirect
AXA Framlington                                       66,000             0.03176
St James Place Offshore Fund
  Indirect
AXA Famlington                                       120,966             0.05822
Daimler Chrysler
  Indirect
AXA Framlington                                      500,000             0.24063
Framlington Income & Capital
  Indirect
AXA Framlington                                    6,950,000             3.34470
UK Select Ops
  Indirect
AXA Framlington                                      250,000             0.12031
Managed Balance
  Indirect
Framlington onshore private clients                  262,150             0.12616
  Indirect
Framlington onshore private clients                   15,000             0.00722
  Indirect
AXA Winterthur                                       253,095             0.12180
  Direct                                                                        
--------------------------------------------------------------------------------
                             Total Direct            509,969             0.24542
                           Total Indirect          9,959,846             4.79320
--------------------------------------------------------------------------------
                                    TOTAL         10,469,815             5.03862
================================================================================


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:


14. Contact name:

Terry March


15. Contact telephone number:

0207 003 2637




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