NANOSONICS LIMITED — Director's Dealing 2011

May 22, 2011

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; Amended 01/01/11

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	Dr Ronald Peter Weinberger
Date of last notice	30 June 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	a) Indirect Interest b) Indirect Interest c) Indirect Interest d) Direct Interest
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	a) and b) Options held under the Nanosonics Employee Share Option Plan c) Shares held under the Nanosonics Deferred Employee Share Plan
Date of change	20 May 2011
No. of securities held prior to change	a) 1,000,000 options NANAY b) 175,000 options NANAI c) 114,083 Ordinary Shares
Class	a) Unquoted options to acquire ordinary shares (ASX Code NANAY) b) Unquoted options to acquire ordinary shares (ASX Code NANAY) c) Ordinary Shares
Number acquired	1,175,000 Fully Paid Shares Direct Interest

• See chapter 19 for defined terms.

Appendix 3Y Page 1

01/01/2011

Appendix 3Y Change of Director’s Interest Notice

Number disposed * 1,175,000 options exercised	a) 1,000,000 options NANAY(Indirect) b) 175,000 options NANAI(Indirect) c) 481,070 fully paid shares (Direct), sold to fund above exercise of options.
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	$331,250.00 (Exercise Value) $389,666.70 (Sale of fully paid shares)
No. of securities held after change	d) 693,930 Fully Paid Shares (Direct) c) 114,083 (Indirect) Shares held in the Nanosonics Deferred Employee Share Plan
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back	1) Exercise of Options. 2) Sale of Fully Paid Shares.

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	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

Part 3 –[+] Closed period

Were the interests in the securities or contracts detailed above traded No during a[+] closed period where prior written clearance was required? If so, was prior written clearance provided to allow the trade to Not applicable proceed during this period? If prior written clearance was provided, on what date was this Not applicable provided?

Director: Dr Ronald Peter Weinberger Date: 23 May 2011

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011

Appendix 3Z Final Director’s Interest Notice

Rule 3.19A.3

Appendix 3Z

Final 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.3 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of director	David John Radford
Date of last notice	13 August 2010
Date that director ceased to be director	16 May 2011

Part 1 – Director’s relevant interests in securities of which the director is the registered holder

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.

Number & class of securities

96,090 ordinary fully paid quoted shares (ASX Code NAN) 500,000 unquoted Employee Share Options with an exercise price of 30 cents per share expiring 18 November 2012

500,000 unquoted Employee Share Options with an exercise price of 30 cents per share expiring 16 June 2013

500,000 unquoted Employee Share Options with an exercise price of 53.5 cents per share expiring 16 June 2014

200,000 unquoted Employee Share Options with an exercise price of 55.6 cents per share expiring 19 July 2014

Part 2 – Director’s relevant interests in securities of which the director is not the registered holder

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.

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

• See chapter 19 for defined terms.

Appendix 3Z Page 1

11/3/2002

Appendix 3Z Final Director’s Interest Notice

Name of holder & nature of interest Note: Provide details of the circumstances giving rise to the relevant interest NAN Employee Share Plan Managers Pty Limited as Trustee of the Nanosonics Deferred Employee Share Plan	Number & class of securities 29,117 ordinary fully paid quoted shares (ASX Code NAN)

Part 3 – Director’s interests in contracts

Detail of contract	None
Nature of interest
Name of registered holder (if issued securities)
No. and class of securities to which interest relates

• See chapter 19 for defined terms.

Appendix 3Z Page 2

11/3/2002

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 30/09/01; Amended 01/01/11

Name of entity Nanosonics Limited (ASX Code: NAN) 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	8 June 2010

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.	Indirect shares held in the names of Novapharm Research (Australia) Pty Ltd and Epitek Corporation Pty Ltd
Date of change	2 May 2011
No. of securities held prior to change	Direct: 28,307,756 ordinary shares Indirect: 116,368 ordinary shares
Class	Fully paid ordinary shares
Number acquired	Nil
Number disposed	33,334 ordinary shares
Value/Consideration Note: If consideration is non‐cash, provide details and estimated valuation	$6,266

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

No. of securities held after change

Direct: 28,274,422 ordinary shares Indirect: 116,368 ordinary shares

Nature of change Example: on‐market trade, off‐market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy‐back

Founder options have been exercised over 33,334 (0.12%) of Mr Stang’s shares. This particular change in holding was instigated by a long‐standing holder of Founder options, which were created by deed on 25 March 2007, i.e. before the Company’s IPO on 17 May 2007. Details of Founder options are set out in section 12.4 of the Company’s Prospectus dated 2 April 2007, a copy of which is available on the Nanosonics website: www.nanosonics.com.au.

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	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

Part 3 –[+] Closed period

Were the interests in the securities or contracts detailed above traded No during a[+] closed period where prior written clearance was required? If so, was prior written clearance provided to allow the trade to Not applicable proceed during this period? If prior written clearance was provided, on what date was this Not Applicable provided?

Note: This is a re‐submission of an Appendix 3Y lodged on 9 May 2011 with Part 3 now completed.

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011