Holding(s) in Company

18th Apr 2007 18:30

Hamworthy plc18 April 2007 18 April 2007 Hamworthy plc Holding(s) in Company 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: Hamworthy plc 2. Reason for the notification (please place an X inside the appropriate bracket/s): 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 notification under Transparency Directive: (X) 3. Full name of person(s) subject to the notification obligation: Rathbone Brothers plc 4. Full name of shareholder(s) (if different from 3.): Rathbone Brothers plc Rathbone Investment Management Ltd Rathbone Unit Trust Management Ltd 5. Date of the transaction (and date on which the threshold is crossed or reached if different): 20 January 2007 6. Date on which issuer notified: 22 January 2007 7. Threshold(s) that is/are crossed or reached: 5% 8. Notified details: A Voting rights attached to shares Class/type of shares if possible using Situation previous to the triggeringthe ISIN CODE transaction Number of Number of voting shares Rights 5p Ordinary 2,368,329 2,368,329GB00B01VFV79 Resulting situation after the triggering transaction Class/type of shares if possible Number of Number of voting % of votingusing the ISIN CODE shares rights rights Direct Direct Indirect Direct Indirect GB00B01VFV79 N/A N/A 2,368,329 N/A 5.49% B: Financial Instruments Resulting situation after the triggering transaction Type of Expiration Exercise/ Number of voting rights that may % offinancial Date Conversion be acquired if the instrument is votinginstrument Period/ Date exercised/ converted. rights N/A N/A N/A N/A N/A Total (A+B) Number of voting rights % of voting rights 2,368,329 5.49 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: RATHBONE BROTHERS PLC* Rathbone Investment Management Ltd 2.71% Rathbone Unit Trust Management Ltd 2.78% *Rathbone Brothers plc is the holding company of the following 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: Paul Crompton - Finance Director 15. Contact telephone number: 01202 662 699 This information is provided by RNS The company news service from the London Stock Exchange

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Rathbone