SThree plc 07 August 2007 Form TR-1 with annex. FSA Version 2.1 updated April 2007 For filings with the FSA include the annex For filings with issuer exclude the annex TR-1: Notifications 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 notification (yes/no) Yes 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): 3. Full name of person(s) subject to notification JPMorgan Chase & Co obligation: 4. Full name of shareholder(s) (if different from 3): JF Asset Management (Taiwan) Limited JF Asset Management Limited JPMorgan Asset Management (UK) Limited 5. Date of transaction (and date on which the 02 August 2007 threshold is crossed or reached if different): 6. Date on which issuer notified: 06 August 2007 7. Threshold(s) that is/are crossed or reached: 5% 8: Notified Details A: Voting rights attached to shares Class/type of Situation previous to the Resulting situation after the triggering transaction shares triggering transaction Number of Number of Number of Number of voting rights Percentage of voting If possible use shares voting rights shares rights ISIN code Direct Indirect Direct Indirect GB00B0KM9T71 7,067,899 7,067,899 6,816,861 6,816,861 4.92% B: Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration date Exercise/ conversion No. of voting rights that Percentage of instrument period/date may be acquired (if the voting rights instrument exercised/ converted) N/A Total (A+B) Number of voting rights Percentage of voting rights 6,816,861 4.92% 9. Chain of controlled undertakings through which the voting rights and /or the financial instruments are effectively held, if applicable: Total disclosable holding for JPMorgan Chase & Co. : 6,816,861 (4.92%) JF Asset Management (Taiwan) Limited JF Asset Management Limited JPMorgan Asset Management (UK) Limited Proxy Voting: 10. Name of proxy holder: N/A 11. Number of voting rights proxy holder will N/A cease to hold: 12. Date on which proxy holder will cease to hold N/A voting rights: 13. Additional information: Please note the group has other holdings which are covered by exemptions. 14 Contact name: Tracey Young 15. Contact telephone name: 020 7325 4513 For notes on how to complete form TR-1 please see the FSA website. Note: Annex should only be submitted to the FSA not the issuer Annex: Notification of major interests in shares A: Identity of the persons or legal entity subject to the notification obligation Full name JPMorgan Chase & Co (including legal form of legal entities) Contact address 270 Park Avenue, New York, NY10017 (registered office for legal entities) Phone number & email 001 212 270 6000 Other useful information N/A (at least legal representative for legal persons) B: Identity of the notifier, if applicable Full name Tracey Young Contact address JPMorgan Chase, 13th Floor, 125 London Wall, London, EC2Y 5AJ Phone number & email 020 7325 4513 tracey.l.young@jpmorgan.com Other useful information N/A (e.g. functional relationship with the person or legal entity subject to the notification obligation) C: Additional information N/A This information is provided by RNS The company news service from the London Stock Exchange