INSTITUTE OF DRUG TECHNOLOGY AUSTRALIA LIMITED

Pursuant to Listing Rule 3.10.5 of the ASX Listing Rules, I advise that the directors have passed a resolution to approve an issue of executive options under the Terms of the Company's Executive Share Option Plan.

The details of the options are as follows:

1. Date of issue : 23 June 2005
2. Last date of exercise : 23 June 2009
3. Number of options : 50,000
4. Issue price of options : $0.00
5. Exercise price of options : $2.08
6. Amount to be raised on
exercise of all options : $104,000

The total number of options on issue following the present issue is:

Options expiring 30 July 2005 exercisable at $4.49 (IDTAW) 230,000
Options expiring 8 August 2006 exercisable at $2.50 (IDTAI) 500,000
Options expiring 28 September 2008 exercisable at $2.77(IDTAY) 480,000
Options expiring 2 November 2008 exercisable at $2.85 (IDTAK) 1,200,000
Options expiring 23 June 2009 at $2.08 50,000
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2,460,000
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Yours faithfully

Adrian McKenzie
COMPANY SECRETARY

A full transcript of the Appendix 3B - Issue of Unquoted Options can be downloaded below:

Download Appendix 3B - Issue of Unquoted Options