SThree plc 07 September 2007 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: SThree plc 2. Reason for the notification (please place an X inside the appropriate bracket /s): An acquisition or disposal of voting rights: (X) 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: Martin Currie Investment Management Limited 4. Full name of shareholder(s) (if different from 3.) : As above 5. Date of the transaction (and date on which the threshold is crossed or reached if different): 30 August 2007 6. Date on which issuer notified: 7 September 2007 7. Threshold(s) that is/are crossed or reached: 3% 8. Notified details: 3.116% A: Voting rights attached to shares Class/type of shares if possible Situation previous to the Triggering transaction using the ISIN CODE Number of shares Number of voting Rights Ordinary - - Resulting situation after the triggering transaction Class/type of shares if Number of shares Number of voting rights % of voting rights possible using the ISIN CODE Direct Direct Indirect Direct Indirect Ordinary 4,314,627 4,314,627 3.116% 3.116% B: Financial Instruments Resulting situation after the triggering transaction Type of Expiration Date Exercise/Conversion Number of voting rights % of voting rights financial Period/ Date that may be acquired if the instrument instrument is exercised/ converted. Total (A+B) Number of voting rights % of voting rights 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable : ................. 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: ................. 14. Contact name: Steve Hornbuckle, Company Secretary 15. Contact telephone number: 0207 292 3876 This information is provided by RNS The company news service from the London Stock Exchange