DOTZ NANO LIMITED — Director's Dealing 2010

May 23, 2010

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: NORTHERN IRON LIMITED ABN: 71 125 264 575

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 CHARLES GRIFFITHS
Date of last notice	11 September 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	Change in registered holding from
(including registered holder)
Note: Provide details of the circumstances giving rise to the relevant interest.	Larksea Investments Pty Ltd <Lake Avenue
	Trust> to
	Mrs JM Griffiths, Miss JM Griffiths and Mr TD
	Griffiths
Date of change	24 May 2010
No. of securities held prior to change	DC Griffiths Pty Ltd <Griffiths Superfund
	A/C>
	117,629 Ordinary Shares
	150,000 unlisted options (@$2.08 expiry
	31/12/10)
	Larksea Investments Pty Ltd <Lake Avenue
	Trust>
	285,071 Ordinary Shares
	150,000 unlisted options (@$2.98 expiry
	31/12/10)

• See chapter 19 for defined terms.

Appendix 3Y Page 1

11/3/2002

Appendix 3Y Change of Director’s Interest Notice

Class	ORDINARY SHARES AND UNLISTED OPTIONS
Number acquired	Nil
Number disposed	Nil
Value/Consideration	N/A
Note: If consideration is non-cash, provide details and estimated valuation
No. of securities held after change	DC Griffiths Pty Ltd <Griffiths Superfund
	A/C>
	117,629 Ordinary Shares
	150,000 unlisted options (@$2.08 expiry
	31/12/10)
	Mrs JM Griffiths, Miss JM Griffiths and Mr TD
	Griffiths
	285,071 Ordinary Shares
	150,000 unlisted options (@$2.98 expiry
	31/12/10)
Nature of change	Restructure of holding.
Example: on-market trade, off-market trade, exercise of options, issue of
securities under dividend reinvestment plan, participation in buy-back

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 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

• See chapter 19 for defined terms.

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Appendix 3Y Change of Director’s Interest Notice

Interest disposed
Value/ConsiderationNote: If consideration is non-cash, provide details and anestimated valuation
Interest after change	Nil

• See chapter 19 for defined terms.

Appendix 3Y Page 3

11/3/2002