SThree plc 13 July 2007 TR-1: Notification of major interests in shares 1. Identity of the issuer or the underlying issuer of existing SThree Plc shares to which voting rights are attached: 2. Reason for the notification (please tick the appropriate box or boxes) An acquisition or disposal of voting rights 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): initial holding notification X 3. Full name of person(s) subject to the notification Allianz SE obligation: 4. Full name of shareholder(s) (if different from 3.): Allianz Global Investors Global Equity Business Unit 5. Date of the transaction (and date on which the threshold is crossed or reached if different): 6. Date on which issuer notified: 13 July 2007 7. Threshold(s) that is/are crossed or reached: 4% 8. Notified details: A: Voting rights attached to shares Class/type of Situation previous to Resulting situation after the triggering transaction shares the Triggering transaction if possible using Number of Number of Number of Number of voting rights % of voting rights the ISIN CODE Shares Voting shares Rights Direct Direct Indirect Direct Indirect GB00B0KM9T71 5,866,772 4.236 B: Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration date Exercise/ Conversion Number of voting rights % of voting instrument Period/ Date that may be acquired if rights the instrument is exercised/ converted. Total (A+B) Number of voting rights % of voting rights 5,866,772 4.236 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: Allianz Global Investors Global Equity Business Unit is a wholly owned subsidiary of Allianz SE. 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: Irina Daniel 15. Contact telephone number: 020 7475 5617 Annex Notification Of Major Interests In Shares A: Identity of the person or legal entity subject to the notification obligation Full name (including legal form for legal entities) Allianz SE Contact address (registered office for legal entities) Koniginastrasse 28 80802 Munich Germany Phone number +49 89 38 00 00 Other useful information (at least legal representative for legal persons) B: Identity of the notifier, if applicable Full name Dresdner Kleinwort Group Limited Contact address 30 Gresham Street London EC2V 7PG Phone number 020 7623 8000 Other useful information (e.g. functional relationship subsidiary with the person or legal entity subject to the notification obligation) C: Additional information This information is provided by RNS The company news service from the London Stock Exchange