NANOSONICS LIMITED — Director's Dealing 2009

Feb 24, 2009

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25th February 2009

Company Announcements Office Australian Securities Exchange

Change in Director’s Interests

Nanosonics Limited (ASX:NAN) advises that a director, Mr David Slack, has purchased 100,000 shares in the Company on-market. Appended below is the Company’s Appendix 3Y, Notice of Change in Director’s Interest.

Chris Grundy Company Secretary & CFO

For more information please contact Chris Grundy, Chief Financial Officer, on 61-2-8063 1600.

About Nanosonics

Nanosonics Limited is developing a portfolio of decontamination products designed to reduce the spread of infection. The Company owns intellectual property relating to a unique disinfection and sterilisation technology which can be suited to a variety of markets.

Initial market applications are designed for the reprocessing of reusable medical instruments. The Company’s first product is designed to disinfect Ultrasound Transducers. In parallel with the commercialisation of this product, Nanosonics is also developing other medical applications and exploring opportunities for its proprietary technology in other industries.

For more information about Nanosonics please visit www.nanosonics.com.au

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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	David Nicholas Slack
Date of last notice	6 February 2009

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	Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Buhina Pty Limited
Date of change	24thFebruary 2009
No. of securities held prior to change	Indirect holdings: Nil Direct holdings: 50,000 unquoted general options with a strike price of 30 cents expiring 18 November 2011.
Class	Ordinary shares, fully paid.
Number acquired	100,000
Number disposed	None
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	$32,080
No. of securities held after change	Indirect holdings: 100,000 ordinary shares, fully paid. Direct holdings: 50,000 unquoted general options with a strike price of 30 cents expiring18 November 2011.
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back	On-market purchase

Part 2 – Change of director’s interests in contracts

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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 None 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