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 ABERDEEN ASSET MANAGERS LIMITED 4. Full name of shareholder(s) (if different from 3 above) N/A 5. Date of the transaction and date on which the threshold is crossed orreached 27 MARCH 2015 6. Date on which issuer notified 31 MARCH 2015 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 - 45,339,179 - 12.03% (B) Financial Instruments N/A (C) Financial Instruments with similar economic effect to Qualifying FinancialInstruments Resulting situation after the triggering transaction Type of financial instrument - N/A Exercise Price - N/A Expiration date - N/A Exercise/conversion period - N/A Number of voting rights instrument refers to - N/A Percentage of voting rights - Nominal - N/A Delta - N/A Total A + B + C Number of voting rights - 45,339,179 Percentage of voting rights - 12.03% 9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable ABERDEEN ASSET MANAGERS LIMITED (AND/OR ACTING FOR ITS AFFILIATES) ASDISCRETIONARY INVESTMENT MANAGER ON BEHALF OF MULTIPLE MANAGED PORTFOLIOS 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 N/A 14. Contact name Ben Van Loon 15. Contact telephone number 01224 404090 Notification authorised by: LORRAINE SPROULE, DEPUTY COMPANY SECRETARY

31 MARCH 2015