Holding(s) in Company

Weir Group PLC
23 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: (No)

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): Revised due to DTR rules - see Section 13 (Yes)


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

FMR Corp


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

See under Section 9.


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

Revised due to DTR rules


6. Date on which issuer notified:

23 March 2007


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

N/A


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                                 6,425,000      6,425,000



Resulting situation after the triggering transaction

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

                                  Direct     Direct Indirect     Direct Indirect

GB0009465807                                        6,425,000           3.09%


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

6,425,000                             3.09%


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


FMR Corp is the parent holding company of Fidelity Management & Research Company
(FMRCO), Investment 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.

Shares Held   Nominee                                   Management Company

     47,900   State Street Bank and Trust Co.           FICL
  5,772,100   JP Morgan Chase Bank                      FMRCO
    605,000   Brown Brothers Harriman and Co.           FMRCO


Proxy Voting:

10. Name of the proxy holder:

FMR Corp


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:

As discussed with the FSA, prior to the implementation of the EU Transparency
Directive, we aggregated the interests in shares of 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]




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