Holding(s) in Company

Aortech International PLC
23 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): (Yes) Change in issued share capital


3. Full name of person(s) subject to the notification obligation (iii):

   Bluehone Investors LLP


4. Full name of shareholder(s) (if different from 3.) (iv):

   See box 9 below


5. Date of the transaction (and date on which the threshold is crossed or
   reached if different) (v):

   n/a


6. Date on which issuer notified:

   22.8.2007


7. Threshold(s) that is/are crossed or reached:

   23, 22 & 21%


8. Notified details:



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          912,841               912,841




Resulting situation after the triggering transaction (vii)

Class/type of       Number of           Number of voting       % of voting rights
shares if           shares              rights (ix)
possible using
the ISIN CODE
                    Direct             Direct    Indirect      Direct     Indirect
                                                   (x)          (xi)

GB0033360586        962,841             -         962,841      -          20.02





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

962,841                          20.02%




9. Chain of controlled undertakings through which the voting rights and/or the
   financial instruments are effectively held, if applicable (xv):

   Bluehone Investors LLP:-

   Client                      No. of voting rights    % of voting rights     Registered name

   Active Capital Trust plc    891,861                 18.54                  Chase Nominees Limited




Proxy Voting:

10. Name of the proxy holder:

    Bluehone Investors LLP


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:

    Peter Fraser, F&C Asset Management plc
    Administrators Secretaries to Bluehone Investors LLP


15. Contact number:

    0131 718 1051





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