Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES
1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:		Weir Group PLC
2 Reason for the notification (please tick the appropriate box or boxes):
An acquisition or disposal of voting rights
An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached
An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments
An event changing the breakdown of voting rights
Other (please specify):
3. Full name of person(s) subject to the notification obligation:	BlackRock, Inc.
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:	27th July 2012
6. Date on which issuer notified:	31st July 2012
7. Threshold(s) that is/are crossed or reached:	Holding has gone below 5%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares if possible using the ISIN CODE

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of  voting rights

Direct

Direct

Indirect

Direct

Indirect

GB0009465807

10,489,981

10,489,981

N/A

N/A

below 5%

N/A

below 5%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ Conversion Period

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date

Exercise/ Conversion period

Number of voting rights instrument refers to

% of voting rights

CFD

below 5%

Nominal

Delta

below 5%

below 5%

Total (A+B+C)

Number of voting rights

Percentage of voting rights

N/A

below 5%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:
BlackRock Investment Management (UK) Limited - below 5%
Proxy Voting:
10. Name of the proxy holder:
11. Number of voting rights proxy holder will cease to hold:
12. Date on which proxy holder will cease to hold voting rights:
13. Additional information:	BlackRock International Threshold Reporting Team
14. Contact name:	William Graham
15. Contact telephone number:	020 7743 1459

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(i) the releases contained herein are protected by copyright and other applicable laws; and
(ii) they are solely responsible for the content, accuracy and originality of the
information contained therein.

Source: The Weir Group PLC via Thomson Reuters ONE

HUG#1631051