NANOSONICS LIMITED — Director's Dealing 2009

Aug 2, 2009

Appendix 3Y Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/9/2001.

Name of entity: Nanosonics Limited ABN: 11 095 076 896

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	Maurie Stang
Date of last notice	24thMay 2007

Part 1 - Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.

Direct or indirect interest	Direct interest
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.
Date of change	28thJuly 2009
No. of securities held prior to change	28,377,000
Class	Fully paid quoted ordinary shares (ASX code NAN)
Number acquired
Number disposed	11,667
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	$2,333.
No. of securities held after change	28,365,333

• See chapter 19 for defined terms.

Appendix 3Y Page 1

11/3/2002

Appendix 3Y Change of Director’s Interest Notice

Nature of change Founder Options exercised (for further details refer Example: on-market trade, off-market trade, exercise section 12.4 of the Company’s Prospectus dated 2 of options, issue of securities under dividend reinvestment plan, participation in buy-back April 2007).

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.

Detail of contract	N/A
Nature of interest
Name of registered holder (if issued securities)
**Date of change **
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed
Interest acquired
Interest disposed
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation
Interest after change

• See chapter 19 for defined terms.

Appendix 3Y Page 2

11/3/2002