Holding(s) in Company

John Wood Group PLC ("Company")

  

NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Name of Issuer

JOHN WOOD GROUP PLC

2. Reason for Notification

ACQUISITION OF VOTING RIGHTS

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

BLACKROCK, INC

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

N/A

5. Date of the transaction

30 APRIL 2009

6. Date on which issuer notified

1 MAY 2009

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

ABOVE 12%

8. Notified details

(A) Voting rights attached to shares

Number of voting rights - Direct - N/A

Number of voting rights - Indirect - 64,114,609 - 12.14%

(B) Financial Instruments

N/A

Total A + B

Number of voting rights - Direct - N/A

Number of voting rights - Indirect - 64,114,609 - 12.14%

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 - 12.14%

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

Notification using the total voting rights figure of 527,836,720

14. Contact name

KAI CHEW

15. Contact telephone number

020 7743 2602

Name of authorised company official responsible for making this notification.

 

IAN JOHNSON, COMPANY SECRETARY

4 APRIL 2009