Holding(s) in Company

RNS Number : 6432J

Weir Group PLC

05 December 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:

Prudential plc group of companies

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

See additional information under 13.

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

4 December 2008

6. Date on which issuer notified:

5 December 2008

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

See additional information under 13.

8. Notified details:

A: Voting rights attached to shares

Situation previous to the triggering transaction

Class/type of shares if possible using the ISIN CODE	Number of shares	Number of voting Rights
GB0009465807	21,367,255	21,367,255

Resulting situation after the triggering transaction

Class/type of shares if possible using the ISIN CODE	Number of shares	Number of voting rights		% of voting rights
	Direct	Direct	Indirect	Direct	Indirect
GB0009465807	21,967,255	21,967,255	-	10.45%	-

B: Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument	Expiration Date	Exercise/Conversion Period/ Date	Number of voting rights that may be acquired if the instrument is exercised/ converted.	% of voting rights
N/A	N/A	N/A	N/A	N/A

Total (A+B)

Number of voting rights	% of voting rights
21,967,255	10.45%

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

Prudential plc (parent Company)

M&G Group Limited (wholly owned subsidiary of Prudential plc)

M&G Investment Management Limited (wholly owned subsidiary of M&G Limited)

M&G Limited (wholly owned subsidiary of M&G Group Limited)

The Prudential Assurance Company Limited (wholly owned subsidiary of Prudential plc)

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:

The Prudential Assurance Company Limited (wholly owned subsidiary of Prudential plc) has gone above 8% notifiable interest triggering this notification.

PRUDENTIAL PLC

Registered Holder	Holding	%
MAGIM HSBC GIS NOM(UK) SALI	163,827
NORTRUST NOMINEE LTD A/C MHF01	44,129
NORTRUST NOMINEE LTD A/C MHJ01	691,887
NORTRUST NOMINEE LTD A/C MKB01	685,255
NORTRUST NOMS LTD	69,586
NORTRUST NOMS LTD A/C PUF01	140,101
NORTRUST NOMS LTD A/C PUI01	21,000
NORTRUST NOMS LTD A/C PUQ01	250,000
NORTRUST NOMS LTD A/C PUR01	2,543,391
PRUCLT HSBC GIS NOM(UK) PAC AC	16,628,546
PRUCLT HSBC GIS NOM(UK) PPL AC	354,690
PRUCLT HSBC GIS NOM(UK) EQBF AC	43,579
PRUCLT HSBC GIS NOM(UK) MNBF AC	80,893
PRUCLT HSBC GIS NOM(UK) PENE AC	250,371
Total	21,967,255	10.45

M&G GROUP LIMITED

Registered Holder	Holding	%
MAGIM HSBC GIS NOM(UK) SALI	163,827
NORTRUST NOMINEE LTD A/C MHF01	44,129
NORTRUST NOMINEE LTD A/C MHJ01	691,887
NORTRUST NOMINEE LTD A/C MKB01	685,255
NORTRUST NOMS LTD	69,586
NORTRUST NOMS LTD A/C PUF01	140,101
NORTRUST NOMS LTD A/C PUI01	21,000
NORTRUST NOMS LTD A/C PUQ01	250,000
NORTRUST NOMS LTD A/C PUR01	2,543,391
PRUCLT HSBC GIS NOM(UK) PAC AC	16,628,546
PRUCLT HSBC GIS NOM(UK) PPL AC	354,690
PRUCLT HSBC GIS NOM(UK) EQBF AC	43,579
PRUCLT HSBC GIS NOM(UK) MNBF AC	80,893
PRUCLT HSBC GIS NOM(UK) PENE AC	250,371
Total	21,967,255	10.45

M&G INVESTMENT MANAGEMENT LIMITED

Registered Holder	Holding	%
MAGIM HSBC GIS NOM(UK) SALI	163,827
NORTRUST NOMINEE LTD A/C MHJ01	691,887
NORTRUST NOMINEE LTD A/C MKB01	685,255
NORTRUST NOMS LTD	69,586
NORTRUST NOMS LTD A/C PUF01	140,101
NORTRUST NOMS LTD A/C PUI01	21,000
NORTRUST NOMS LTD A/C PUQ01	250,000
NORTRUST NOMS LTD A/C PUR01	2,543,391
PRUCLT HSBC GIS NOM(UK) PAC AC	16,628,546
PRUCLT HSBC GIS NOM(UK) PPL AC	354,690
PRUCLT HSBC GIS NOM(UK) EQBF AC	43,579
PRUCLT HSBC GIS NOM(UK) MNBF AC	80,893
PRUCLT HSBC GIS NOM(UK) PENE AC	250,371
Total	21,923,126	10.43

M&G LIMITED

Registered Holder	Holding	%
MAGIM HSBC GIS NOM(UK) SALI	163,827
NORTRUST NOMINEE LTD A/C MHF01	44,129
NORTRUST NOMINEE LTD A/C MHJ01	691,887
NORTRUST NOMINEE LTD A/C MKB01	685,255
NORTRUST NOMS LTD	69,586
NORTRUST NOMS LTD A/C PUF01	140,101
NORTRUST NOMS LTD A/C PUI01	21,000
NORTRUST NOMS LTD A/C PUQ01	250,000
NORTRUST NOMS LTD A/C PUR01	2,543,391
PRUCLT HSBC GIS NOM(UK) PAC AC	16,628,546
PRUCLT HSBC GIS NOM(UK) PPL AC	354,690
PRUCLT HSBC GIS NOM(UK) EQBF AC	43,579
PRUCLT HSBC GIS NOM(UK) MNBF AC	80,893
PRUCLT HSBC GIS NOM(UK) PENE AC	250,371
Total	21,967,255	10.45

THE PRUDENTIAL ASSURANCE COMPANY LIMITED

Registered Holder	Holding	%
MAGIM HSBC GIS NOM(UK) SALI	163,827
PRUCLT HSBC GIS NOM(UK) PAC AC	16,628,546
PRUCLT HSBC GIS NOM(UK) PPL AC	354,690
Total	17,147,063	8.15