Warthog PLC 20 June 2007 TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES 1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached (ii): WARTHOG 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: ( ) An event changing the breakdown of voting rights: ( ) Other (please specify): 3. Full name of person(s) subject to the notification obligation (iii): Barclays PLC 4. Full name of shareholder(s) (if different from 3.) (iv): Barclays Stockbrokers Ltd Gerrard Invesment management Ltd 5. Date of the transaction (and date on which the threshold is crossed or reached if different) (v): 14 June 2007 6. Date on which issuer notified: 15 June 2007 7. Threshold(s) that is/are crossed or reached: 13% to 14% 8. Notified details: A: Voting rights attached to shares Class/type of shares if possible Situation previous to the Triggering transaction(vi) using the ISIN CODE Number of shares Number of voting Rights (viii) GB0030013675 48,602,908 48,602,908 Resulting situation after the triggering transaction (vii) Class/type of shares if Number of shares Number of voting rights (ix) % of voting rights possible using the ISIN CODE Direct (x) Indirect (xi) Direct Indirect GB0030013675 49,006,133 0 49,006,133 0 14.09% B: Financial Instruments Resulting situation after the triggering transaction (xii) Type of Expiration Date ( Exercise/Conversion Number of voting rights % of voting rights financial xiii) Period/Date (xiv) that may be acquired if instrument the instrument is exercised/ converted. Total (A+B) Number of voting rights % of voting rights 49,006,133 14.09% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable (xv): Barclays Stockbrokers Ltd Gerrard Investment Management Ltd 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: 14. Contact name: Geoff Smith 15. Contact telephone number: +44 (0)20 7116 2913 Annex to Notification Of Major Interests In Shares (xvi) A: Identity of the person or legal entity subject to the notification obligation Full name (including legal form for legal entities): Contact address (registered office for legal entities): Phone number: Other useful information (at least legal representative for legal persons): B: Identity of the notifier, if applicable (xvii) Full name: Contact address: Phone number: Other useful information (e.g. functional relationship with the person or legal entity subject to the notification obligation) END 20 June 2007 This information is provided by RNS The company news service from the London Stock Exchange