Holding(s) in Company

Aortech International PLC 09 August 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): Aortech International 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): MF Global UK Limited 4. Full name of shareholder(s) (if different from 3.) (iv): n/a 5. Date of the transaction (and date on which the threshold is crossed or reached if different) (v): 7 August 2007 6. Date on which issuer notified: 8 August 2007 7. Threshold(s) that is/are crossed or reached: 2 8. Notified details: Below 3% A: Voting rights attached to shares Class/type of shares Situation previous to the Triggering transaction if possible using (vi) the ISIN CODE Number of shares Number of voting Rights (viii) GB0033360586 114,568 114,568 Resulting situation after the triggering transaction (vii) Class/type of shares Number of shares Number of voting % of voting if possible using rights (ix) rights the ISIN CODE Direct (x) Indirect Direct Indirect (xi) GB0033360586 Below 3% Below 3% Below 3% B: Financial Instruments Resulting situation after the triggering transaction (xii) Type of Expiration Date Exercise/Conversion Number of voting % of voting financial (xiii) Period/Date (xiv) rights that may be rights instrument acquired if the instrument is exercised/ converted. n/a n/a n/a n/a n/a Total (A+B) Number of voting rights % of voting rights 111,068 Below 3% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable (xv): 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: A Jarrett or S Horner 15. Contact email address: ajarrett@mfglobal.com or shorner@mfglobal.com END 9 August 2007 This information is provided by RNS The company news service from the London Stock Exchange
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